<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Namboodiri, C. K. R.</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">Mukkamala, R.</style></author><author><style face="normal" font="default" size="100%">Chandra, B.</style></author><author><style face="normal" font="default" size="100%">Aidhen, I. S.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Solvatochromism, multiphoton fluorescence, and resonance energy transfer in a new octupolar dye-pair</style></title><secondary-title><style face="normal" font="default" size="100%">Chemical PhysicsChemical Physics</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Excited state dipole moment</style></keyword><keyword><style  face="normal" font="default" size="100%">Förster resonance energy transfer (FRET)</style></keyword><keyword><style  face="normal" font="default" size="100%">Intramolecular charge transfer</style></keyword><keyword><style  face="normal" font="default" size="100%">Two photon absorption (2PA) cross section</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2013</style></year></dates><number><style face="normal" font="default" size="100%">xxx</style></number><pages><style face="normal" font="default" size="100%">xxx</style></pages><isbn><style face="normal" font="default" size="100%">0301-0104</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>47</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Namboodiri, C. K. R.</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">Reddy, B.S.</style></author><author><style face="normal" font="default" size="100%">Chandra, B.</style></author><author><style face="normal" font="default" size="100%">Mukkamala, R.</style></author><author><style face="normal" font="default" size="100%">Aidhen, I. S.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Non-Linear Optical Susceptibility and Excited state Dipole moment of a new Octupolar Molecule</style></title><secondary-title><style face="normal" font="default" size="100%">Proc. National Laser Symposium, (NLS-20)</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2012</style></year></dates><pub-location><style face="normal" font="default" size="100%">Anna Univ. , Chennai</style></pub-location><volume><style face="normal" font="default" size="100%">A-03-020</style></volume><pages><style face="normal" font="default" size="100%">98</style></pages><language><style face="normal" font="default" size="100%">eng</style></language></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Kalanoor, B. S.</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">Akbar Ali,  S</style></author><author><style face="normal" font="default" size="100%">T.T. Baby</style></author><author><style face="normal" font="default" size="100%">S. Ramaprabhu</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Optical nonlinearity of silver-decorated graphene</style></title><secondary-title><style face="normal" font="default" size="100%"> J. Opt. Soc. Am. </style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2012</style></year></dates><volume><style face="normal" font="default" size="100%">B, 29 </style></volume><section><style face="normal" font="default" size="100%">669-675</style></section></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Dantham, V. R.</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">Kalanoor, B. S.</style></author><author><style face="normal" font="default" size="100%">T.T. Baby</style></author><author><style face="normal" font="default" size="100%">S. Ramaprabhu</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Restricting charge transfer in dye-graphene system</style></title><secondary-title><style face="normal" font="default" size="100%">Chemical Physics LettersChemical Physics Letters</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2012</style></year></dates><volume><style face="normal" font="default" size="100%">521</style></volume><pages><style face="normal" font="default" size="100%">130-133</style></pages><isbn><style face="normal" font="default" size="100%">0009-2614</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Dantham, V. R.</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">Namboodiri, C. K. R.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Enhancement of Raman scattering by two orders of magnitude using photonic nanojet of a microsphere</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Applied PhysicsJournal of Applied Physics</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">cadmium compounds</style></keyword><keyword><style  face="normal" font="default" size="100%">II-VI semiconductors</style></keyword><keyword><style  face="normal" font="default" size="100%">photonic band gap</style></keyword><keyword><style  face="normal" font="default" size="100%">Raman spectra</style></keyword><keyword><style  face="normal" font="default" size="100%">refractive index</style></keyword><keyword><style  face="normal" font="default" size="100%">semiconductor thin films</style></keyword><keyword><style  face="normal" font="default" size="100%">silicon</style></keyword><keyword><style  face="normal" font="default" size="100%">wide band gap semiconductors</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2011</style></year></dates><number><style face="normal" font="default" size="100%">10</style></number><publisher><style face="normal" font="default" size="100%">AIP</style></publisher><volume><style face="normal" font="default" size="100%">109</style></volume><pages><style face="normal" font="default" size="100%">103103-4</style></pages><language><style face="normal" font="default" size="100%">eng</style></language></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>10</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Kalanoor, B. S.</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Femtosecond pulse measurement using the technique of spatial splitting of laser beam</style></title><secondary-title><style face="normal" font="default" size="100%">Proc. of Int. Conf. on Futuristic Science&amp; Technology in Frontier areas</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2011</style></year></dates><pub-location><style face="normal" font="default" size="100%">Thiruvananthapuram</style></pub-location><pages><style face="normal" font="default" size="100%">101</style></pages><language><style face="normal" font="default" size="100%">eng</style></language></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Akbar Ali,  S</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">Senthilmurugan, A.</style></author><author><style face="normal" font="default" size="100%">Aidhen, I. S.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">A new fluorescent probe with stimulated emission and multiphoton absorption properties</style></title><secondary-title><style face="normal" font="default" size="100%">Chemical PhysicsChemical Physics</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Charge transfer property</style></keyword><keyword><style  face="normal" font="default" size="100%">Dimethylamino stilbene</style></keyword><keyword><style  face="normal" font="default" size="100%">Multiphoton emission</style></keyword><keyword><style  face="normal" font="default" size="100%">π-Conjugated systems</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2011</style></year></dates><number><style face="normal" font="default" size="100%">1–3</style></number><volume><style face="normal" font="default" size="100%">382</style></volume><pages><style face="normal" font="default" size="100%">68-73</style></pages><isbn><style face="normal" font="default" size="100%">0301-0104</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">S. Akbar Ali</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">A. Nautiyal</style></author><author><style face="normal" font="default" size="100%">V. Shukla</style></author><author><style face="normal" font="default" size="100%">K. S. Bindra</style></author><author><style face="normal" font="default" size="100%">S. M. Oak</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Conical emission in &amp;#x3b2;-barium borate under femtosecond pumping with phase matching angles away from second harmonic generation</style></title><secondary-title><style face="normal" font="default" size="100%">J. Opt. Soc. Am. BJ. Opt. Soc. Am. B</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Femtosecond phenomena</style></keyword><keyword><style  face="normal" font="default" size="100%">Nonlinear optics, four-wave mixing</style></keyword><keyword><style  face="normal" font="default" size="100%">Parametric processes</style></keyword><keyword><style  face="normal" font="default" size="100%">Ultrafast nonlinear optics</style></keyword><keyword><style  face="normal" font="default" size="100%">Upconversion</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2010</style></year></dates><number><style face="normal" font="default" size="100%">9</style></number><publisher><style face="normal" font="default" size="100%">OSA</style></publisher><volume><style face="normal" font="default" size="100%">27</style></volume><pages><style face="normal" font="default" size="100%">1751-1756</style></pages><language><style face="normal" font="default" size="100%">eng</style></language></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">S. Akbar Ali</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">A. Nautiyal</style></author><author><style face="normal" font="default" size="100%">V. Shukla</style></author><author><style face="normal" font="default" size="100%">K. S. Bindra</style></author><author><style face="normal" font="default" size="100%">S. M. Oak</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Conical emission in β-barium borate under femtosecond pumping with phase matching angles away from second harmonic generation</style></title><secondary-title><style face="normal" font="default" size="100%">J. Opt. Soc. Am. B</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2010</style></year><pub-dates><date><style  face="normal" font="default" size="100%">January</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">27</style></volume><pages><style face="normal" font="default" size="100%">1751-1755</style></pages><language><style face="normal" font="default" size="100%">eng</style></language></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">S. Akbar Ali</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">A. Nautiyal</style></author><author><style face="normal" font="default" size="100%">V. Shukla</style></author><author><style face="normal" font="default" size="100%">K. S. Bindra</style></author><author><style face="normal" font="default" size="100%">S. M. Oak</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Conical emission in β-barium borate under femtosecond pumping with phase matching angles away from second harmonic generation</style></title><secondary-title><style face="normal" font="default" size="100%">J. Opt. Soc. Am. BJ. Opt. Soc. Am. B</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2010</style></year></dates><number><style face="normal" font="default" size="100%">Copyright (C) 2010 American Chemical Society (ACS). All Rights Reserved.</style></number><publisher><style face="normal" font="default" size="100%">Optical Society of America</style></publisher><volume><style face="normal" font="default" size="100%">27</style></volume><pages><style face="normal" font="default" size="100%">1751-1756</style></pages><isbn><style face="normal" font="default" size="100%">0740-3224</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The broadband parametric upconverted conical emission (CE) has been investigated in a β-barium borate crystal with phase matching angles away from second harmonic generation. A broad range of CE from 340 to 800 nm has been obsd. by varying the crystal thickness and the incident energy of the pump beam. It has been found that the tunability range can be increased with the thickness of the medium. The CE spectra and their angular positions have been measured and found to match with those calcd. from recent theor. models. [on SciFinder(R)]</style></abstract><work-type><style face="normal" font="default" size="100%">10.1364/JOSAB.27.001751</style></work-type><notes><style face="normal" font="default" size="100%">CAPLUS AN 2010:1159243(Journal)</style></notes></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">S. Akbar Ali</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">A. Nautiyal</style></author><author><style face="normal" font="default" size="100%">V. Shukla</style></author><author><style face="normal" font="default" size="100%">K. S. Bindra</style></author><author><style face="normal" font="default" size="100%">S. M. Oak</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Conical emission in β-barium borate under femtosecond pumping with phase matching angles away from second harmonic generation</style></title><secondary-title><style face="normal" font="default" size="100%">J. Opt. Soc. Am. BJ. Opt. Soc. Am. B</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2010</style></year></dates><number><style face="normal" font="default" size="100%">Copyright (C) 2010 American Chemical Society (ACS). All Rights Reserved.</style></number><publisher><style face="normal" font="default" size="100%">Optical Society of America</style></publisher><volume><style face="normal" font="default" size="100%">27</style></volume><pages><style face="normal" font="default" size="100%">1751-1756</style></pages><isbn><style face="normal" font="default" size="100%">0740-3224</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><work-type><style face="normal" font="default" size="100%">10.1364/JOSAB.27.001751</style></work-type></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Dantham, V. R.</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Modification of radiative rates of molecules coated on a single microcavity by evanescent coupling of whispering gallery modes (WGMs)</style></title><secondary-title><style face="normal" font="default" size="100%">Eur. Phys. J.: Appl. Phys.Eur. Phys. J.: Appl. Phys.</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2010</style></year></dates><number><style face="normal" font="default" size="100%">Copyright (C) 2010 American Chemical Society (ACS). All Rights Reserved.</style></number><publisher><style face="normal" font="default" size="100%">EDP Sciences</style></publisher><volume><style face="normal" font="default" size="100%">51</style></volume><pages><style face="normal" font="default" size="100%">20902/p1-20902/p6</style></pages><isbn><style face="normal" font="default" size="100%">1286-0042</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Dye-coated single microspheres exhibit whispering gallery modes (WGMs) within the spontaneous emission bandwidth of the dye spectrum. These modes are extremely sensitive to the size, shape and the refractive index besides their coating thickness. Aden and Kerker theory has been used to simulate the WGMs. The effect of refractive index of the medium and the microsphere on WGMs has been studied. Variations are obsd. in the decay rates of the excited state with the size of the microspheres on varying the refractive index of the medium surrounding the microcavity. It is found that (i) the obsd. quality factors (Q-values) are smaller by several orders of magnitude than those expected theor. and (ii) the radiative rates are enhanced for Q-values &gt; 3 × 103. [on SciFinder(R)]</style></abstract><work-type><style face="normal" font="default" size="100%">10.1051/epjap/2010091</style></work-type><notes><style face="normal" font="default" size="100%">CAPLUS AN 2010:1171839(Journal)</style></notes></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Dantham, V. R.</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Modification of radiative rates of molecules coated on a single microcavity by evanescent coupling of whispering gallery modes (WGMs)</style></title><secondary-title><style face="normal" font="default" size="100%">Eur. Phys. J.: Appl. Phys.Eur. Phys. J.: Appl. Phys.</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2010</style></year></dates><number><style face="normal" font="default" size="100%">Copyright (C) 2010 American Chemical Society (ACS). All Rights Reserved.</style></number><publisher><style face="normal" font="default" size="100%">EDP Sciences</style></publisher><volume><style face="normal" font="default" size="100%">51</style></volume><pages><style face="normal" font="default" size="100%">20902/p1-20902/p6</style></pages><isbn><style face="normal" font="default" size="100%">1286-0042</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><work-type><style face="normal" font="default" size="100%">10.1051/epjap/2010091</style></work-type></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">A. Nautiyal</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Steady state and time-resolved studies of pyrene in solution and in single microcrystals</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of LuminescenceJournal of Luminescence</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2010</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Oct</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">10</style></number><volume><style face="normal" font="default" size="100%">130</style></volume><pages><style face="normal" font="default" size="100%">1829-1833</style></pages><isbn><style face="normal" font="default" size="100%">0022-2313</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Single microcrystals of pyrene have been studied by steady state and time resolved fluorescence microscopy. The fluorescence spectra of microcrystals exhibit vibrational structure unlike the broad spectrum observed in pyrene excimer. A risetime is observed in the decay curves of the concentrated solutions, indicating the excimer formation. In contrast, the fluorescence decay profiles of the single microcrystals are nonexponential in nature and the decay times vary with their size and the wavelength of emission. This behaviour has been explained mainly by considering the pyrene dimer stabilized in the ground state. (C) 2010 Elsevier B.V. All rights reserved.</style></abstract><accession-num><style face="normal" font="default" size="100%">ISI:000280621400030</style></accession-num><notes><style face="normal" font="default" size="100%">Nautiyal, Ambika Bisht, Prem B.</style></notes></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>10</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Dantham, V. R.</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">Dobal, Pramod Singh</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Studies of single optical microcavities by using laser Raman microscopy</style></title><secondary-title><style face="normal" font="default" size="100%">&lt;i&gt;Proc. National Laser Symp. (NLS-19)&lt;/i&gt;</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2010</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Dec. 1-4</style></date></pub-dates></dates><pub-location><style face="normal" font="default" size="100%">Indore</style></pub-location><pages><style face="normal" font="default" size="100%">1</style></pages><language><style face="normal" font="default" size="100%">eng</style></language></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Murthy, Y. L. N.</style></author><author><style face="normal" font="default" size="100%">Christopher, V.</style></author><author><style face="normal" font="default" size="100%">Prasad, U. Viplava</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">Ramanaih, D. V.</style></author><author><style face="normal" font="default" size="100%">Kalanoor, B. S.</style></author><author><style face="normal" font="default" size="100%">S. Akbar Ali</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Synthesis and study of nonlinear optical properties of 4-substituted benzylidene-2-phenyl oxazol-5-ones by Z-scan technique</style></title><secondary-title><style face="normal" font="default" size="100%">Synth. Met.Synth. Met.</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">benzylidenephenyloxazolone deriv prepn nonlinear optical property Z scan technique</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2010</style></year></dates><number><style face="normal" font="default" size="100%">Copyright (C) 2010 American Chemical Society (ACS). All Rights Reserved.</style></number><publisher><style face="normal" font="default" size="100%">Elsevier B.V.</style></publisher><volume><style face="normal" font="default" size="100%">160</style></volume><pages><style face="normal" font="default" size="100%">535-539</style></pages><isbn><style face="normal" font="default" size="100%">0379-6779</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><work-type><style face="normal" font="default" size="100%">10.1016/j.synthmet.2009.11.029</style></work-type></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Murthy, Y. L. N.</style></author><author><style face="normal" font="default" size="100%">Christopher, V.</style></author><author><style face="normal" font="default" size="100%">Prasad, U. V.</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">Ramanaih, D. V.</style></author><author><style face="normal" font="default" size="100%">Kalanoor, B. S.</style></author><author><style face="normal" font="default" size="100%">Ali, S. A.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Synthesis and study of nonlinear optical properties of 4-substituted benzylidene-2-phenyl oxazol-5-ones by Z-scan technique</style></title><secondary-title><style face="normal" font="default" size="100%">Synthetic MetalsSynthetic Metals</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2010</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Mar</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">5-6</style></number><volume><style face="normal" font="default" size="100%">160</style></volume><pages><style face="normal" font="default" size="100%">535-539</style></pages><isbn><style face="normal" font="default" size="100%">0379-6779</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">4-substituted benzylidene-2-pheny-5-oxazolones (5 new compounds) were synthesized by both conventional and microwave assisted synthesis and were characterized by gas chromatography-mass spectrometry (GCMS), Fourier-transform nuclear magnetic resonance (FT-NMR) spectroscopy, and Fourier-transform infrared (FT-IR) spectroscopy. The synthetic methodology of these new compounds is presented. The results of nonlinear optical study of 4-(4'-N,N-dimethyl benzylidene)-2-phenyl oxazol-5-(4H)-one by using Z-scan techniques are discussed here. The ultrafast fluorescence decay of the molecule has been explained to be due to the electron transfer from the dimethyl group to the carbonyl group. (C) 2009 Elsevier B.V. All rights reserved.</style></abstract><accession-num><style face="normal" font="default" size="100%">ISI:000276119800039</style></accession-num><notes><style face="normal" font="default" size="100%">Murthy, Y. L. N. Christopher, V. Prasad, U. Viplava Bisht, P. B. Ramanaih, D. V. Kalanoor, B. S. Ali, S. Akbar</style></notes></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">A. Nautiyal</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">K. S. Bindra</style></author><author><style face="normal" font="default" size="100%">S. M. Oak</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Effects of thickness of beta-barium borate and angle of non-collinearity on the fs pulse generation by optical parametric amplification</style></title><secondary-title><style face="normal" font="default" size="100%">Optics and Laser TechnologyOptics and Laser Technology</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2009</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Jul</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">5</style></number><volume><style face="normal" font="default" size="100%">41</style></volume><pages><style face="normal" font="default" size="100%">539-544</style></pages><isbn><style face="normal" font="default" size="100%">0030-3992</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Non-collinear optical parametric amplifiers (NOPAs) are used for the generation of tunable femtosecond pulses. The spectra of the uncompressed output from a lab-built NOPA in the 470-650 ruin range have been recorded. Theoretical simulations for the effect of the length of the beta-barium borate (BBO) crystal as well as the non-collinear angles between the pump and seed wavelengths have been carried out. For these we have obtained the initial experimental data from a 2 mm-thick BBO crystal when pumped with the second harmonic of the Ti:sapphire laser pulses of 100 fs duration. The pulse splitting length (PSI.) and the group velocity mismatch (GVM) have been considered in simulations of the Output. it was found that the crystal length of 1.3 mm and the crystal tilt of approximately 3.7 degrees are optimal for the generation of pulses of similar to 11 fs at 600 nm. (c) 2008 Elsevier Ltd. All rights reserved.</style></abstract><accession-num><style face="normal" font="default" size="100%">ISI:000266000900005</style></accession-num><notes><style face="normal" font="default" size="100%">Nautiyal, A. Bisht, P. B. Bindra, K. S. Oak, S. M.</style></notes></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">A. Nautiyal</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">K. S. Bindra</style></author><author><style face="normal" font="default" size="100%">S. M. Oak</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Effects of thickness of β-barium borate and angle of non-collinearity on the fs pulse generation by optical parametric amplification</style></title><secondary-title><style face="normal" font="default" size="100%">Opt. Laser Technol.Opt. Laser Technol.</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">OPA femtosecond pulse generation noncollinearity angle barium borate thickness</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2009</style></year></dates><number><style face="normal" font="default" size="100%">Copyright (C) 2010 American Chemical Society (ACS). All Rights Reserved.</style></number><publisher><style face="normal" font="default" size="100%">Elsevier Ltd.</style></publisher><volume><style face="normal" font="default" size="100%">41</style></volume><pages><style face="normal" font="default" size="100%">539-544</style></pages><isbn><style face="normal" font="default" size="100%">0030-3992</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><work-type><style face="normal" font="default" size="100%">10.1016/j.optlastec.2008.11.004</style></work-type></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">D. Venkata Ramanaiah</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">High-Q whispering gallery modes of doped and coated single microspheres and their effect on radiative rate</style></title><secondary-title><style face="normal" font="default" size="100%">J. Opt. Soc. A m. B</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2009</style></year><pub-dates><date><style  face="normal" font="default" size="100%">January</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">26</style></volume><pages><style face="normal" font="default" size="100%">290-301</style></pages><language><style face="normal" font="default" size="100%">eng</style></language></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Dantham, V. R.</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">High-Q whispering gallery modes of doped and coated single microspheres and their effect on radiative rate</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of the Optical Society of America B-Optical PhysicsJournal of the Optical Society of America B-Optical Physics</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2009</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Feb</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">2</style></number><volume><style face="normal" font="default" size="100%">26</style></volume><pages><style face="normal" font="default" size="100%">290-300</style></pages><isbn><style face="normal" font="default" size="100%">0740-3224</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Fluorescence spectra of two organic dyes doped in polymer beads as well as coated on single microparticles of silica exhibit whispering gallery modes (WGMs). For doped microspheres, theoretical simulations on WGMs have been carried out based on the Lorentz-Mie theory by varying the refractive index and the diameter of the microparticle. Similarly, for a coated microsphere, an Aden and Kerker model of the Lorentz-Mie theory has been used to simulate WGMs. For diameters &gt;= 8 mu m, low-resolution simulations of scattering efficiency fail to show modes of higher-quality factors (Q similar to 10(8)). A new procedure of identifying these modes is given here that does not require use of high -performance computing. Effects of WGMs on decay rates have also been studied: It has been found that, while doped microparticles exhibit no effect on the radiative rate, coated microparticles show inhibition of the decay rate for smaller sizes. Decay rates of single-coated microspheres are found to be distinctly different from those of randomly shaped single microcrystals. (C) 2009 Optical Society of America</style></abstract><accession-num><style face="normal" font="default" size="100%">ISI:000263925700014</style></accession-num><notes><style face="normal" font="default" size="100%">Dantham, Venkata Ramanaiah Bisht, Prem Ballabh</style></notes></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Kalanoor, B. S.</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">Annamalai, S.</style></author><author><style face="normal" font="default" size="100%">Aidhen, I. S.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">A new distyrylbenzene derivative with Weinreb amide functionality: An efficient laser dye and nonlinear optical material</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of LuminescenceJournal of Luminescence</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2009</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Sep</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">9</style></number><volume><style face="normal" font="default" size="100%">129</style></volume><pages><style face="normal" font="default" size="100%">1094-1098</style></pages><isbn><style face="normal" font="default" size="100%">0022-2313</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">We report here the synthesis of a distyrylbenzene derivative with end substituent as Weinreb amide. This Weinreb amide-based distyrylbenzene (WADSB) gives indications of highly efficient laser dye as well as a nonlinear optical medium. The photophysical parameters of the dye are given here. The lasing spectra of the dye have been measured in a cuvette configuration. The third-order nonlinear susceptibility has been measured by laser-induced transient grating technique (LITG). A comparison with the existing standard molecules shows that it is a comparably an efficient lasing material as well as an efficient nonlinear optical material at the pump wavelength of 355 nm. (C) 2009 Elsevier B.V. All rights reserved.</style></abstract><accession-num><style face="normal" font="default" size="100%">ISI:000268555700039</style></accession-num><notes><style face="normal" font="default" size="100%">Kalanoor, Basanth S. Bisht, Prem B. Annamalai, Senthilmurugan Aidhen, Indrapal Singh</style></notes></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">A. Nautiyal</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Broadly tunable parametric line emission from beta-barium borate on pumping with picosecond pulses</style></title><secondary-title><style face="normal" font="default" size="100%">Optics CommunicationsOptics Communications</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2008</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Jun</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">12</style></number><volume><style face="normal" font="default" size="100%">281</style></volume><pages><style face="normal" font="default" size="100%">3351-3355</style></pages><isbn><style face="normal" font="default" size="100%">0030-4018</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Tunable line emission (LE) over a large wavelength region (340-980 mn) is obtained by pumping thick crystals of P-barium borate (BBO) with picosecond pulses at 532 nm. Phenomena of group velocity dispersion, diffraction and phase matching take place simultaneously such that the radiation shows specific features that are characteristic of (i) strongly coupled fundamental and harmonic fields, (ii) amplified phase matched superfluorescence, (iii) conical emission and (iv) four wave mixing. (C) 2008 Elsevier B.V. All rights reserved.</style></abstract><accession-num><style face="normal" font="default" size="100%">ISI:000256127400020</style></accession-num><notes><style face="normal" font="default" size="100%">Nautiyal, Ambika Bisht, Prem B.</style></notes></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Sailaja, R.</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">Singh, C. P.</style></author><author><style face="normal" font="default" size="100%">K. S. Bindra</style></author><author><style face="normal" font="default" size="100%">S. M. Oak</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Influence of multiphoton events in measurement of two-photon absorption cross-sections and optical nonlinear parameters under femtosecond pumping</style></title><secondary-title><style face="normal" font="default" size="100%">Optics CommunicationsOptics Communications</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2007</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Sep</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">2</style></number><volume><style face="normal" font="default" size="100%">277</style></volume><pages><style face="normal" font="default" size="100%">433-439</style></pages><isbn><style face="normal" font="default" size="100%">0030-4018</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Absolute values of two-photon absorption cross-sections of some laser dyes in methanol solution have been measured by using the transmission method. From the fluorescence yield measurements under multiphoton excitation, the number of involved photons in the process has also been estimated. It is found that the presence of higher photon events may lead to erroneous values of measured two-photon absorption cross-sections. It is shown here that the Z-scan technique is capable of differentiating between the two- and three-photon absorption processes. Nonlinear optical parameters under femtosecond pumping by multiphoton resonant excitation at 800 nm are also given here. (c) 2007 Elsevier B.V. All rights reserved.</style></abstract><accession-num><style face="normal" font="default" size="100%">ISI:000251791100035</style></accession-num><notes><style face="normal" font="default" size="100%">Sailaja, Rallabandi Bisht, Prem B. Singh, C. P. Bindra, K. S. Oak, S. M.</style></notes></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">U. Tripathy</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Influence of pulsed and cw pumping on optical nonlinear parameters of laser dyes probed by a closed-aperture Z-scan technique</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of the Optical Society of America B-Optical PhysicsJournal of the Optical Society of America B-Optical Physics</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2007</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Sep</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">9</style></number><volume><style face="normal" font="default" size="100%">24</style></volume><pages><style face="normal" font="default" size="100%">2147-2156</style></pages><isbn><style face="normal" font="default" size="100%">0740-3224</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Two dye pairs suitable for energy transfer along with a photostable dye have been studied by using the closed-aperture (CA) Z-scan technique under pulsed and cw pumping. Here we use a theoretical model to elucidate the refractive and absorptive nonlinearity present simultaneously in the CA Z-scan profile. A separate openaperture (OA) Z-scan study has been carried out to compare the nonlinear absorption parameters obtained from the CA Z-scan technique. At a fixed pumping wavelength, values of optical nonlinear parameters increase with the absorbance of dyes. It is found that the sign of refractive nonlinearity is dependent on the irradiance and the pulse width of the pump beam. In addition to the contribution of the third-order optical nonlinearity, various other mechanisms such as fifth-order nonlinearity, population relaxation to triplet states, and thermal effects are discussed here. (c) 2007 Optical Society of America.</style></abstract><accession-num><style face="normal" font="default" size="100%">ISI:000249842500017</style></accession-num><notes><style face="normal" font="default" size="100%">Tripathy, Umakanta Bisht, Prem B.</style></notes></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Jena, K. C.</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">Shaijumon, M M</style></author><author><style face="normal" font="default" size="100%">S. Ramaprabhu</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Study of optical nonlinearity of functionalized multi-wall carbon nanotubes by using degenerate four wave mixing and Z-scan techniques</style></title><secondary-title><style face="normal" font="default" size="100%">Optics CommunicationsOptics Communications</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2007</style></year><pub-dates><date><style  face="normal" font="default" size="100%">May</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">1</style></number><volume><style face="normal" font="default" size="100%">273</style></volume><pages><style face="normal" font="default" size="100%">153-158</style></pages><isbn><style face="normal" font="default" size="100%">0030-4018</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The phase conjugation geometry of degenerate four wave mixing (DFWM) technique has been employed to study the third-order optical nonlinear susceptibility (chi(3)) and second-order hyperpolarizability of multi-wall carbon nanotubes (MWCNTs). MWCNTs were grown by thermal chemical vapor deposition method and, subsequently functionalized with carboxylic acid group to improve their solubility in an organic solvent, ethylene glycol. The average hyperpolarizability for each carbon atom has been found to be 4.74x10(-46) m(5)/V-2 for the pump pulse of 8 ns at 532 nm. Decreasing the pulse width of the pump laser decreases the average value of hyperpolarizability. The absorption spectra show a monotonous increase from IR through visible and give an opportunity to estimate the imaginary part of the chi(3) by the open aperture Z-scan technique. (c) 2007 Elsevier B.V. All rights reserved.</style></abstract><accession-num><style face="normal" font="default" size="100%">ISI:000245475100024</style></accession-num><notes><style face="normal" font="default" size="100%">Jena, Kailash C. Bisht, Prem B. Shaijumon, M. M. Ramaprabhu, S.</style></notes></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">A. Nautiyal</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Sum and difference frequency generation of white light continuum with the ps pulses of Nd+3 : YAG laser in a thick BBO crystal</style></title><secondary-title><style face="normal" font="default" size="100%">Optics CommunicationsOptics Communications</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2007</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Oct</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">1</style></number><volume><style face="normal" font="default" size="100%">278</style></volume><pages><style face="normal" font="default" size="100%">175-179</style></pages><isbn><style face="normal" font="default" size="100%">0030-4018</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The white light continuum (WLC) generated in water/D2O mixture by pumping with the fundamental of ps Nd (+3) :YAG laser has been used as a variable frequency source for the sum frequency generation as well as for its amplification. 35 ps long pulses with 8 mJ energy at 1064 nm were mixed collinearly with the WLC generated by the same laser beam in a 20 mm thick BBO crystal. The obtained tunable output has been identified as the sum frequency between the fundamental and a portion of the WLC with the required phase matching. Theoretical simulations are also given along with a few initial experiments to use this combination for the difference frequency generation (optical parametric amplification) under non-collinear geometry. (c) 2007 Elsevier B.V. All rights reserved.</style></abstract><accession-num><style face="normal" font="default" size="100%">ISI:000249235600030</style></accession-num><notes><style face="normal" font="default" size="100%">Nautiyal, Ambika Bisht, Prem B.</style></notes></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Sailaja, R.</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Tunable multiline distributed feedback dye laser based on the phenomenon of excitation energy transfer</style></title><secondary-title><style face="normal" font="default" size="100%">Organic ElectronicsOrganic Electronics</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2007</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Apr-Jun</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">2-3</style></number><volume><style face="normal" font="default" size="100%">8</style></volume><pages><style face="normal" font="default" size="100%">175-183</style></pages><isbn><style face="normal" font="default" size="100%">1566-1199</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Tunable multiline distributed feedback (DFB) lasing has been observed in the mixture of dyes rhodamine 6G (R6G) and cresyl violet (CV). The dye-pair is pumped by the two pairs of the pump beams derived from a common source at two different angles. A variation in DFB geometry up to seven orders suggests that the third order Bragg diffraction is suitable for such studies. A detailed study at high dye concentrations has been done by steady-state and ps time-resolved spectroscopy. The energy transfer phenomenon and the self-absorption mechanism both, are found to be responsible for the observed tunability and multiline lasing. The threshold energies required for the DFB lasing are also given here. (c) 2007 Elsevier B.V. All rights reserved.</style></abstract><accession-num><style face="normal" font="default" size="100%">ISI:000245765600011</style></accession-num><notes><style face="normal" font="default" size="100%">Sailaja, Rallabandi Bisht, Prem B.</style></notes></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">U. Tripathy</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Effect of donor-acceptor interaction strength on excitation energy migration and diffusion at high donor concentrations</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Chemical PhysicsJournal of Chemical Physics</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2006</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Oct</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">14</style></number><volume><style face="normal" font="default" size="100%">125</style></volume><isbn><style face="normal" font="default" size="100%">0021-9606</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The migration and diffusion modulated excitation energy transfer has been studied in a new dye pair 7-diethylamino-4-methylcoumarin (donor) to 3,3(')-dimethyloxacarbocyanine iodide (acceptor) by steady-state and picosecond time-resolved spectroscopy. To reduce the artifact of self-absorption, at high donor concentrations, the time-resolved studies have been carried out in thin films of polyvinyl alcohol (solid matrix) and in methanol (liquid phase) at front-face geometry of excitation. The Forster-type (nonradiative) energy transfer [Discuss. Faraday Soc. 27, 7 (1959)] takes place directly from donor to acceptor in case of solid matrix, while Yokota-Tanimoto model [J. Phys. Soc. Jpn. 22, 779 (1967)] for diffusion has been found to be operating in the liquid phase. It has been found here that the high interaction strength between donor and acceptor molecules as compared to that among donors masks the effect of energy migration and diffusion at high donor concentrations. The rate and efficiency of energy transfer increase with increasing the acceptor concentration. This has been confirmed by the study of acceptor kinetics. (c) 2006 American Institute of Physics.</style></abstract><accession-num><style face="normal" font="default" size="100%">ISI:000241248400035</style></accession-num><notes><style face="normal" font="default" size="100%">Tripathy, Umakanta Bisht, Prem B.</style></notes></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Sandeep, P.</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Photophysics of 9-amino acridine hydrochloride hydrate single microcrystals</style></title><secondary-title><style face="normal" font="default" size="100%">Chemical PhysicsChemical Physics</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2006</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Aug</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">2-3</style></number><volume><style face="normal" font="default" size="100%">326</style></volume><pages><style face="normal" font="default" size="100%">521-526</style></pages><isbn><style face="normal" font="default" size="100%">0301-0104</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Single microcrystals of 9-amino acridine hydrochloride hydrate (9AAHH) have been studied by steady state and time resolved fluorescence microscopy. Crystalline 9AAHH exists in the form of two types of microcrystals viz., stick type and slab type. The stick-shaped microcrystals are found to undergo excimer formation. With increase in size, the excimer fluorescence is masked by the concomitant appearance of self-absorption effect in dimer. The fluorescence lifetimes increase on increasing the microcrystal size. While the bandwidth of fluorescence spectra of slab shaped microcrystals are found to increase, the fluorescence lifetimes decrease with increasing their size. Results are explained on the basis of interplay between the self-absorption effect of the dimer, its conversion efficiency to the excimer, and higher aggregate formation in large microcrystals. (c) 2006 Elsevier B.V. All rights reserved.</style></abstract><accession-num><style face="normal" font="default" size="100%">ISI:000239380700033</style></accession-num><notes><style face="normal" font="default" size="100%">Sandeep, P. Bisht, Prem B.</style></notes></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">U. Tripathy</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Simultaneous estimation of optical nonlinear refractive and absorptive parameters by solvent induced changes in optical density</style></title><secondary-title><style face="normal" font="default" size="100%">Optics CommunicationsOptics Communications</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2006</style></year><pub-dates><date><style  face="normal" font="default" size="100%">May</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">2</style></number><volume><style face="normal" font="default" size="100%">261</style></volume><pages><style face="normal" font="default" size="100%">353-358</style></pages><isbn><style face="normal" font="default" size="100%">0030-4018</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">With picosecond pulses at the wavelength of 532 nm, we have determined the optical nonlinear refractive and absorptive parameters of the dye N,N'-bis(2,5-di-tert-butylphenyl)-3,4,9,10-perylenedicarboximide (DBPI) by a single closed-aperture (CA) Z-scan technique. This technique uses a theoretical model that elucidates the refractive and absorptive optical nonlinearity present simultaneously ill the CA Z-scan profile. The observed remarkable red shift in the absorption spectrum of the dye in the acidic medium as compared to that ill the polar medium has been used to vary the optical density at a single frequency. We find that the effect of saturable absorption (SA) is complete at higher concentrations. The effect of reverse saturable absorption (RSA) is dominating in dilute concentrations. The observed variations in the excited state refractive cross-section (sigma(r)) with the concentration and the energy have been attributed to the contributions of higher order nonlinearity along with the existing third-order nonlinearity. (C) 2005 Elsevier B.V. All rights reserved.</style></abstract><accession-num><style face="normal" font="default" size="100%">ISI:000237403500025</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Sandeep, P.</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Concentration sensing based on radiative rate enhancement from a single microcavity</style></title><secondary-title><style face="normal" font="default" size="100%">Chemical Physics LettersChemical Physics Letters</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2005</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Oct</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">1-3</style></number><volume><style face="normal" font="default" size="100%">415</style></volume><pages><style face="normal" font="default" size="100%">15-19</style></pages><isbn><style face="normal" font="default" size="100%">0009-2614</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Time resolved fluorescence microscopy has been used to measure the radiative rate of molecules embedded in single spherical microcavities. The value of the measured rate is found to be a function of the diameter of the selected microcavity. The values of radiative rate enhancement (RRE) have been obtained for various cavity sizes and different concentrations. It is shown here for the first time that the concentration dependence of RRE can be used for sensitive detection of changes in the concentration of molecules in microscopic space. (c) 2005 Elsevier B.V. All rights reserved.</style></abstract><accession-num><style face="normal" font="default" size="100%">ISI:000232796100004</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Sandeep, P.</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Effect of adsorbed concentration on the radiative rate enhancement of photoexcited molecules embedded in single microspheres</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Chemical PhysicsJournal of Chemical Physics</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2005</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Nov</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">20</style></number><volume><style face="normal" font="default" size="100%">123</style></volume><isbn><style face="normal" font="default" size="100%">0021-9606</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The variation of the molecular density in a single microcavity and its influence on the radiative rate enhancement (RRE) are reported here. The quality factors of the observed morphology-dependent resonances (MDRs) of the microcavity remain unchanged in the absence of any absorbing effects. In contrast, the MDRs tend to disappear in the presence of strong absorption even due to the self-absorption by the molecule. Time-resolved fluorescence studies reveal the fact that the value of RRE decreases with an increase in the adsorbed concentration of the molecules. The results have been explained in terms of a detuning parameter, which is a function of the refractive index of the microcavity. The increased dispersing capability of the microsphere upon increasing its molecular density has been found to be responsible for the observed decrease in RRE. (c) 2005 American Institute of Physics.</style></abstract><accession-num><style face="normal" font="default" size="100%">ISI:000233661000068</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">U. Tripathy</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">Pandey, K. K.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Excitation energy transfer efficiency of dipole-dipole interaction in a dye pair in polymer medium</style></title><secondary-title><style face="normal" font="default" size="100%">Research on Chemical IntermediatesResearch on Chemical Intermediates</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2005</style></year></dates><number><style face="normal" font="default" size="100%">7-8</style></number><volume><style face="normal" font="default" size="100%">31</style></volume><pages><style face="normal" font="default" size="100%">649-659</style></pages><isbn><style face="normal" font="default" size="100%">0922-6168</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Excitation energy transfer efficiency (eta) of dipole-dipole interaction has been studied in the dye pair 3,3'-dimethyloxacarbocyanine iodide (DMOCI) (donor) to o-(6-diethylamino-3-diethylimino-3H-xanthen-9-yl) benzoic acid (Rhodamine B, RB) (acceptor) in polyvinyl alcohol (PVA) thin films by steady-state and ps time-resolved fluorescence spectroscopy. In the presence of the acceptor the fluorescence intensity of the donor decreases, while that of the acceptor increases as a function of the added acceptor concentration. Time-resolved study of the donor at various acceptor concentrations suggest that the non-radiative energy transfer mechanism as proposed by Forster is responsible for the observed behaviour along with some modifications at very low acceptor concentrations. Modified eta values have been simulated and compared with those obtained experimentally. It is found that the value of eta increases with acceptor concentration.</style></abstract><accession-num><style face="normal" font="default" size="100%">ISI:000232142800012</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Jena, K. C.</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Excitation energy transfer in a weakly coupled system: Studies with time-resolved fluorescence microscopy and laser induced transient grating techniques</style></title><secondary-title><style face="normal" font="default" size="100%">Chemical PhysicsChemical Physics</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2005</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Jul</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">1-3</style></number><volume><style face="normal" font="default" size="100%">314</style></volume><pages><style face="normal" font="default" size="100%">179-188</style></pages><isbn><style face="normal" font="default" size="100%">0301-0104</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Excitation energy transfer in a new dye pair eosin (donor) to 1,1',3,3,3',3'-hexarnethyl indotricarbocyanine iodide (HITCI) (acceptor) has been studied in solutions of dimethyl sulfoxide (DMSO) and polymer microparticles by picosecond time-resolved fluorescence microscopy and laser induced transient grating (LITG) techniques. There exits a large shift between the fluorescence maximum of the donor (552 nm) and the absorption maximum of the acceptor (747 nm) with a small spectral overlap resulting in a weak coupling between the two. On increasing the acceptor concentration, the fluorescence intensity and the fluorescence lifetime of the donor decreases in diffusion-con trolled fashion. The fluorescence decay curves have been measured by time-correlated single photon counting (TCSPC) technique on ns time scale, while the LITG technique has been used to monitor the short-time decay dynamics. The critical transfer distance calculated from the overlap integral is 34 +/- angstrom. Forster theory of excitation energy transfer has been used to interpret the kinetics at higher acceptor concentrations. When the donor-acceptor system is embedded in single microspheres, while an enhancement in the radiative rate of the donor is observed, but no conclusive evidence of modification of the rate of the excitation energy transfer is found. (c) 2005 Elsevier B.V. All rights reserved.</style></abstract><accession-num><style face="normal" font="default" size="100%">ISI:000229392500018</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Sailaja, R.</style></author><author><style face="normal" font="default" size="100%">Sreeja, V.</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Studies of self-phase modulation under cw and picosecond laser pumping: white light continuum generation in water</style></title><secondary-title><style face="normal" font="default" size="100%">Indian Journal of Physics and Proceedings of the Indian Association for the Cultivation of ScienceIndian Journal of Physics and Proceedings of the Indian Association for the Cultivation of Science</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2005</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Nov</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">11</style></number><volume><style face="normal" font="default" size="100%">79</style></volume><pages><style face="normal" font="default" size="100%">1299-1304</style></pages><isbn><style face="normal" font="default" size="100%">0973-1458</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">White light continuum generation (WLC) has been studied in water, D2O and their mixture under ps laser pumping, Its spectrum extends from 450 to 970 nm. Strong contributions from self-phase modulation (SPM) and stimulated Raman scattering (SRS) are observed. To study the spatial SPM and SRS separately from each other, the stimulated Raman scattering spectrum has been recorded for acetone by using the ps laser at 1064 nm while the effect of spatial SPM is demonstrated with a Gaussian profile of Ar ion laser in an organic dye. The high optical nonlinearity of the dye results in diffracted rings in the far field of the observed diffracted pattern. A comparison with the WLC obtained by is pumping, has been given on the basis of the available data in the literature.</style></abstract><accession-num><style face="normal" font="default" size="100%">ISI:000233801200010</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>10</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Bizjak, T.</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">Lochbrunner, S.</style></author><author><style face="normal" font="default" size="100%">Riedle, E.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Femtosecond transient spectroscopy of the photoionization of indole in water</style></title></titles><keywords><keyword><style  face="normal" font="default" size="100%">indole femtosecond transient photoionization spectroscopy</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2004</style></year></dates><publisher><style face="normal" font="default" size="100%">Elsevier B.V.</style></publisher><pages><style face="normal" font="default" size="100%">229-232</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><work-type><style face="normal" font="default" size="100%">Femtochemistry and Femtobiology: Ultrafast Events in Molecular Science, International Conference on Femtochemistry, 6th, Paris, </style></work-type><num-vols><style face="normal" font="default" size="100%">Copyright (C) 2010 American Chemical Society (ACS). All Rights Reserved.</style></num-vols></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">U. Tripathy</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">Pandey, K. K.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Study of excitation energy migration and transfer in 3,3'-dimethyloxacarbocyanine iodide (DMOCI) and o-(6-diethylamino-3-diethylimino-3H-xanthen-9-yl) benzoic acid (RB) in thin films of polyvinyl alcohol</style></title><secondary-title><style face="normal" font="default" size="100%">Chemical PhysicsChemical Physics</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2004</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Mar</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">1</style></number><volume><style face="normal" font="default" size="100%">299</style></volume><pages><style face="normal" font="default" size="100%">105-112</style></pages><isbn><style face="normal" font="default" size="100%">0301-0104</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Excitation energy migration and transfer study in a new dye pair 3,3'-dimethyloxacarbocyanine iodide (DMOCI) (donor) to o-(6-diethylamino-3-diethylimino-3H-xanthen-9-yl) benzoic acid (RB) (acceptor) has been carried out in thin films of polyvinyl alcohol (PVA) by steady state and ps time-resolved spectroscopy. It is found that at low donor and high acceptor concentration the Forster type (non-radiative) energy transfer takes place directly from donor to acceptor, whereas in case of low acceptor concentrations the excitation energy migration through donor-donor interaction dominates over the direct donor-acceptor transfer. The observed behaviour has been explained on the basis of theoretical models of Loring, Anderson and Fayer (LAF) and Huber. (C) 2004 Elsevier B.V. All rights reserved.</style></abstract><accession-num><style face="normal" font="default" size="100%">ISI:000220129400014</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Sandeep, P.</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Cavity quantum electrodynamic effects and control of radiative rate of 9-amino acridine hydrochloride hydrate</style></title><secondary-title><style face="normal" font="default" size="100%">Chemical Physics LettersChemical Physics Letters</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2003</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Apr</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">3-4</style></number><volume><style face="normal" font="default" size="100%">371</style></volume><pages><style face="normal" font="default" size="100%">327-332</style></pages><isbn><style face="normal" font="default" size="100%">0009-2614</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Morphology dependent resonances (MDR) are observed in the fluorescence spectra of 9-amino acridine hydrochloride hydrate (9AAHH) in polymer spherical microparticles. Decrease in the fluorescence lifetime as a function of the size of the microparticle indicates the enhancement of the radiative rate. The results have been explained on the basis of cavity quantum electrodynamic (QED) effects. It is shown here that the appearance of MDR and the enhancement of the radiative rate are controlled by the size and the shape of the microparticle. (C) 2003 Elsevier Science B.V. All rights reserved.</style></abstract><accession-num><style face="normal" font="default" size="100%">ISI:000181954000014</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">U. Tripathy</style></author><author><style face="normal" font="default" size="100%">Rajesh, R. J.</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">Subrahamanyam, A.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Optical nonlinearity of organic dyes as studied by Z-scan and transient grating techniques</style></title><secondary-title><style face="normal" font="default" size="100%">Proceedings of the Indian Academy of Sciences-Chemical SciencesProceedings of the Indian Academy of Sciences-Chemical Sciences</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2002</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Dec</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">6</style></number><volume><style face="normal" font="default" size="100%">114</style></volume><pages><style face="normal" font="default" size="100%">557-564</style></pages><isbn><style face="normal" font="default" size="100%">0253-4134</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The excited state absorption cross-section of 5,5'-dichloro-11-diphenyl-amino-3,3'-diethyl-10,12-ethylinethiatricarboc yanine perchlorate (IR140) have been measured by using a single beam transmission technique. Z-scan experiments have been used to find out a few nonlinear parameters. The excited state relaxation times have also been measured by using laser induced transient grating (LITG) technique.</style></abstract><accession-num><style face="normal" font="default" size="100%">ISI:000180972800006</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Rajesh, R. J.</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Theoretical and experimental studies on laser-induced transient gratings in laser dyes</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of LuminescenceJournal of Luminescence</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2002</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Oct</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">3</style></number><volume><style face="normal" font="default" size="100%">99</style></volume><pages><style face="normal" font="default" size="100%">301-309</style></pages><isbn><style face="normal" font="default" size="100%">0022-2313</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Laser-induced transient grating technique has been used to measure the diffraction efficiency (q) and calculate the third-order nonlinear susceptibility (chi((3))) of some laser dyes. Theoretical simulations have been carried out on q and (3) as a function of wavelength covering the spectral range corresponding to the first excited singlet state of the dyes. Theoretically simulated values have been found in agreement to those observed experimentally. The decay profiles for these dyes have been measured by using diffraction of a delayed probe laser pulse to estimate the relaxation times in the excited state. (C) 2002 Published by Elsevier Science B.V.</style></abstract><accession-num><style face="normal" font="default" size="100%">ISI:000178848900014</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Rajesh, R. J.</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Theoretical and experimental studies on photophysical parameters of N,N '-bis(2,5,-di-tert-butylphenyl)-3,4 : 9-10-perylenebis(dicarboximide) (DBPI) by using transient grating technique</style></title><secondary-title><style face="normal" font="default" size="100%">Chemical Physics LettersChemical Physics Letters</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2002</style></year><pub-dates><date><style  face="normal" font="default" size="100%">May</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">5-6</style></number><volume><style face="normal" font="default" size="100%">357</style></volume><pages><style face="normal" font="default" size="100%">420-425</style></pages><isbn><style face="normal" font="default" size="100%">0009-2614</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Diffraction efficiency of laser induced transient grating (LITG) for N.N'-bis(2,5,-di-tert-butylphenyl)-3,4:9-10-perylenebis(dicarboximide) (DBPI) has been experimentally measured in solutions of benzene and dimethyl sulfoxide. Third-order nonlinear susceptibility values have been obtained from these measurements and have been compared to those obtained from theory. Further. the relaxation time of DBPI has been estimated by measuring the decay profiles of the LITG. (C) 2002 Published by Elsevier Science B.V.</style></abstract><accession-num><style face="normal" font="default" size="100%">ISI:000175958900016</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Rajesh, R. J.</style></author><author><style face="normal" font="default" size="100%">T. S. Natarajan</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Computer controlled femtosecond optical delay line for ultrafast optics and spectroscopy</style></title><secondary-title><style face="normal" font="default" size="100%">Indian Journal of Pure &amp; Applied PhysicsIndian Journal of Pure &amp; Applied Physics</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2001</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Oct</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">10</style></number><volume><style face="normal" font="default" size="100%">39</style></volume><pages><style face="normal" font="default" size="100%">636-639</style></pages><isbn><style face="normal" font="default" size="100%">0019-5596</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">A computer controlled optical delay line for experiments in ultrafast laser optics and spectroscopy has been fabricated. Spatial resolution of 0.5 mum and an optical resolution of 16 fs have been obtained from the set tip. An ultrafast decay of 50 ps for the relaxation of an organic dye has been recorded using this set up as an example. Fabrication details of this economical and indigenous PC-controlled optical delay line along with the software requirement are presented here.</style></abstract><accession-num><style face="normal" font="default" size="100%">ISI:000171756700004</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Sindhu, T. G.</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">Rajesh, R. J.</style></author><author><style face="normal" font="default" size="100%">Satyanarayana, M. V.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Effect of higher order nonlinear dispersion on ultrashort pulse evolution in a fiber laser</style></title><secondary-title><style face="normal" font="default" size="100%">Microwave and Optical Technology LettersMicrowave and Optical Technology Letters</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2001</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Feb</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">3</style></number><volume><style face="normal" font="default" size="100%">28</style></volume><pages><style face="normal" font="default" size="100%">196-198</style></pages><isbn><style face="normal" font="default" size="100%">0895-2477</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Theoretical simulations have been carried out to achieve ultrafast pulse generation in an all-fiber laser known as a figure-of-eight laser. (F8L). It is observed that the higher order nonlinear dispersions play a vital role in determining the stability of the output pulse on a femtosecond (fs) time scale. Best fit parameters for F8L to generate pulses as short as 420 fs are reported here. (C) 2001 John Wiley &amp; Sons, Inc.</style></abstract><accession-num><style face="normal" font="default" size="100%">ISI:000166354300013</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Relaxation processes using transient grating technique</style></title><secondary-title><style face="normal" font="default" size="100%">Research on Chemical IntermediatesResearch on Chemical Intermediates</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2001</style></year></dates><number><style face="normal" font="default" size="100%">4-5</style></number><volume><style face="normal" font="default" size="100%">27</style></volume><pages><style face="normal" font="default" size="100%">539-547</style></pages><isbn><style face="normal" font="default" size="100%">0922-6168</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Transient gratings are produced by placing a sample in the interference region of two intersecting intense laser beams. The optical constants of the sample change due to the spatially modulated interference field. Several interesting phenomena that occur in the excited state of organic molecules and in semiconductors can be studied by using the transient grating technique. Theoretical simulations are used as an additional tool to verify some of the experimental results that give signatures of the technique for standardization of the obtained results. A brief description of these phenomena along with an example is given here.</style></abstract><accession-num><style face="normal" font="default" size="100%">ISI:000170817200020</style></accession-num><notes><style face="normal" font="default" size="100%">Sp. Iss. SI</style></notes></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Garcia-Ochoa, I.</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">Sanchez, F.</style></author><author><style face="normal" font="default" size="100%">Martinez-Ataz, E.</style></author><author><style face="normal" font="default" size="100%">Santos, L.</style></author><author><style face="normal" font="default" size="100%">Tripathi, H. B.</style></author><author><style face="normal" font="default" size="100%">Douhal, A.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Experimental and theoretical studies of the proton-hopping reaction of 7-hydroxyquinoline in viscous hydroxylic media</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Physical Chemistry AJournal of Physical Chemistry A</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1998</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Nov</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">45</style></number><volume><style face="normal" font="default" size="100%">102</style></volume><pages><style face="normal" font="default" size="100%">8871-8880</style></pages><isbn><style face="normal" font="default" size="100%">1089-5639</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Experimental and theoretical (PM3) studies of 7-hydroxyquinoline in glycerol and in ethylene glycol show the occurrence of a proton-transfer reaction in the ground as well as in the first singlet electronically excited states. Both studies indicate that the H-bond bridge formed in the 1:1 complex provides a stabilization of the keto form in the S-0 state (lambda(abs) = 420 nm). In S-1, a photoinduced proton-transfer reaction solely occurs in the bridged or well-prepared II-bonded enol form, producing a fraction of the keto tautomer that emits a largely Stokes shifted band (lambda(emis) = 530 nm). The time-resolved fluorescence measurements show that the dynamics of this proton-hopping reaction is viscosity-dependent (0.5 ns in ethylene glycol and 0.8 ns in glycerol). Theoretical calculations indicate the coexistence of cis and trans rotamers of the dye in the gas phase, in agreement with the observation in a jet-cooled molecular beam. The optimized geometries of the 1:1 complexes of both cis-enol and keto tautomers with both solvents indicate that proton-transfer dynamics involves a global nuclear motion of the H-bond bridge. In both associated tautomers, the 2-OH group of the glycerol molecule does not participate in the H-bond bridge involved in the tautomerization. Analysis of the HOMO and LUMO shows that the driving force of the proton-hopping reaction originates in a partial intramolecular charge transfer from the proton-donating site to the accepting group within the dye molecule.</style></abstract><accession-num><style face="normal" font="default" size="100%">ISI:000076937700034</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Garcia-Ochoa, I.</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">Sanchez, F.</style></author><author><style face="normal" font="default" size="100%">Martinez-Ataz, E.</style></author><author><style face="normal" font="default" size="100%">Santos, L.</style></author><author><style face="normal" font="default" size="100%">Tripathi, H. B.</style></author><author><style face="normal" font="default" size="100%">Douhal, A.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Experimental and Theoretical Studies of the Proton-Hopping Reaction of 7-Hydroxyquinoline in Viscous Hydroxylic Media</style></title><secondary-title><style face="normal" font="default" size="100%">J. Phys. Chem. AJ. Phys. Chem. A</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">MO proton hopping hydroxyquinoline viscous glycol</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1998</style></year></dates><number><style face="normal" font="default" size="100%">Copyright (C) 2010 American Chemical Society (ACS). All Rights Reserved.</style></number><publisher><style face="normal" font="default" size="100%">American Chemical Society</style></publisher><volume><style face="normal" font="default" size="100%">102</style></volume><pages><style face="normal" font="default" size="100%">8871-8880</style></pages><isbn><style face="normal" font="default" size="100%">1089-5639</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><work-type><style face="normal" font="default" size="100%">10.1021/JP981489+</style></work-type></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">Okamoto, M.</style></author><author><style face="normal" font="default" size="100%">Hirayama, S.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Effect of high pressure on enol-keto tautomerization in salicylic acid: A study by steady-state absorption and fluorescence measurements</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Physical Chemistry BJournal of Physical Chemistry B</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1997</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Oct</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">44</style></number><volume><style face="normal" font="default" size="100%">101</style></volume><pages><style face="normal" font="default" size="100%">8850-8855</style></pages><isbn><style face="normal" font="default" size="100%">1089-5647</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The effects of pressure (0.1-450 MPa) on enol-keto tautomerization reaction in salicylic acid (SA) have been investigated by steady-state absorption, fluorescence emission, and excitation spectroscopy. In dilute solutions, the emission intensity of the keto form of the monomer shows marked increase with pressure. In concentrated solutions, where only dimers are present, only a very small increase in the fraction of the keto form of the dimers is observed by applying high pressures. A possible reaction, mechanism for such a behavior is discussed.</style></abstract><accession-num><style face="normal" font="default" size="100%">ISI:A1997YE03900007</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">Fukuda, K.</style></author><author><style face="normal" font="default" size="100%">Hirayama, S.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Size-dependent fluorescence emission spectra and lifetimes of microcrystals of the dye N,N'-bis(2,5-di-tert-butylphenyl)-3,4:9,10-perylenebis(dicarboximide) (DBPI) studied by confocal fluorescence microscopy</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Physical Chemistry BJournal of Physical Chemistry B</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1997</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Oct</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">41</style></number><volume><style face="normal" font="default" size="100%">101</style></volume><pages><style face="normal" font="default" size="100%">8054-8058</style></pages><isbn><style face="normal" font="default" size="100%">1089-5647</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The time-correlated single-photon counting (TCSPC) technique combined with confocal fluorescence microscopy has revealed the nonexponential character of the fluorescence decay (0.1-10 ns) for highly fluorescent single microcrystals of the dye N,N'-bis(2,5-di-tert-butylphenyl)-3,4:9 (DBPI) of a size as small as a few micrometers. Steady-state and time-resolved emission spectra of the microcrystals have also been measured with a fluorescence microscope. A size dependence is observed for both fluorescence emission spectra and lifetimes. The fluorescence decay profiles of the microcrystals, when observed with confocal optics, exhibit a dominant contribution of a short-lived (0.11-0.14 ns) component. From these results it has been concluded that the self-absorption effect is playing a major role in characterizing the fluorescence of microcrystals of DBPI with no contribution from any new emitting species.</style></abstract><accession-num><style face="normal" font="default" size="100%">ISI:A1997YA48500004</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">Joshi, G. C.</style></author><author><style face="normal" font="default" size="100%">Tripathi, H. B.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Excited state hydrogen bonding of the 2-naphthol-triethylamine system in 1,4-dioxane (vol 237, pg 356, 1995)</style></title><secondary-title><style face="normal" font="default" size="100%">Chemical Physics LettersChemical Physics Letters</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1996</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Mar</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">5-6</style></number><volume><style face="normal" font="default" size="100%">251</style></volume><pages><style face="normal" font="default" size="100%">413-413</style></pages><isbn><style face="normal" font="default" size="100%">0009-2614</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><accession-num><style face="normal" font="default" size="100%">ISI:A1996UF73300024</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">Joshi, G. C.</style></author><author><style face="normal" font="default" size="100%">Tripathi, H. B.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Excited state hydrogen bonding of the 2-naphthol-triethylamine system in 1,4-dioxane. [Erratum to document cited in CA123:32553]</style></title><secondary-title><style face="normal" font="default" size="100%">Chem. Phys. Lett.Chem. Phys. Lett.</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">erratum excited state hydrogen bonding naphthol</style></keyword><keyword><style  face="normal" font="default" size="100%">excited state hydrogen bonding naphthol erratum</style></keyword><keyword><style  face="normal" font="default" size="100%">state hydrogen bonding naphthol triethylamine erratum</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1996</style></year></dates><number><style face="normal" font="default" size="100%">Copyright (C) 2010 American Chemical Society (ACS). All Rights Reserved.</style></number><publisher><style face="normal" font="default" size="100%">Elsevier</style></publisher><volume><style face="normal" font="default" size="100%">251</style></volume><pages><style face="normal" font="default" size="100%">413</style></pages><isbn><style face="normal" font="default" size="100%">0009-2614</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">Fukuda, K.</style></author><author><style face="normal" font="default" size="100%">Hirayama, S.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Ripple structures in the fluorescence spectra of N,N'-bis(2,5-di-tert-butylphenyl)3,4:9,10-perylenebis(dicarboximide) (DBPI) in spherical micrometer-sized polystyrene beads</style></title><secondary-title><style face="normal" font="default" size="100%">Chemical Physics LettersChemical Physics Letters</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1996</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Aug</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">1-2</style></number><volume><style face="normal" font="default" size="100%">258</style></volume><pages><style face="normal" font="default" size="100%">71-79</style></pages><isbn><style face="normal" font="default" size="100%">0009-2614</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Emission spectra of DBPI in polystyrene spherical beads of less than 20 mu m diameter show sharp ripple structures. The observed peak positions and the intervals of the structures are consistent with calculations of the morphology dependent resonances (MDR). These MDRs in beads up to 4 mu m diameter do not appear to affect the fluorescence decay of DBPI since the fluorescence lifetime of DBPI remains constant at 3.7 +/- 0.1 ns irrespective of the size of the bead and the refractive index of a surrounding medium.</style></abstract><accession-num><style face="normal" font="default" size="100%">ISI:A1996VB49400011</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">Fukuda, K.</style></author><author><style face="normal" font="default" size="100%">Hirayama, S.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Steady-state and time-resolved fluorescence study of some dyes in polymer microspheres showing morphology dependent resonances</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Chemical PhysicsJournal of Chemical Physics</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1996</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Nov</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">20</style></number><volume><style face="normal" font="default" size="100%">105</style></volume><pages><style face="normal" font="default" size="100%">9349-9361</style></pages><isbn><style face="normal" font="default" size="100%">0021-9606</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Fluorescence emission spectra of N,N'-bis(2,5-di-tert-butylphenyl)-3,4:9,10- Perylenebis(dicarboximide) (DBPI), rhodamine 6G (R6G), and cresyl violet (CV) in spherical polymer beads of less than 20 mu m diameter show sharp ripple structures, The observed peak positions and the intervals of the structures are consistent with the calculations of the morphology dependent resonances (MDR). Observed intensities of the MDR in the fluorescence emission spectra are found to show excitation energy dependence. The fluorescence spectra have also been measured as a function of the refractive indexes of the medium and the bead. These MDR in the beads up to 4 mu m diameter do not appear to affect the fluorescence decay of the dyes, since the fluorescence lifetime remains constant irrespective of the size of the bead and the refractive index of a surrounding medium. Simulations based on the Lorentz-Mie theory for the microspheres of different refractive indexes have been used to quantify the observed effect on the basis of the available data on the homogeneous widths of the dye molecules, A fluorescence study of microcrystals of DBPI is also presented here from the point of view of comparison with fluorescence decay of dye impregnated beads. The microcrystals exhibit a size effect in the fluorescence decay which has been attributed mainly to the self-absorption effect. (C) 1996 American Institute of Physics.</style></abstract><accession-num><style face="normal" font="default" size="100%">ISI:A1996VV04900039</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">Tripathi, H. B.</style></author><author><style face="normal" font="default" size="100%">Pant, D. D.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">CRYOGENIC STUDIES, SITE SELECTIVITY AND DISCRETE FLUORESCENCE IN SALICYLIC-ACID DIMER</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Photochemistry and Photobiology a-ChemistryJournal of Photochemistry and Photobiology a-Chemistry</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1995</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Sep</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">2-3</style></number><volume><style face="normal" font="default" size="100%">90</style></volume><pages><style face="normal" font="default" size="100%">103-108</style></pages><isbn><style face="normal" font="default" size="100%">1010-6030</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Cryogenic effects (10-293 K) on the photophysics of salicylic acid (SA) dimer have been studied using steady state and time-resolved spectroscopic techniques. SA dimer shows two emissions at approximately 390 nm (dimer, D) and approximately 430 nm (tautomer, T), formed by cyclic double proton transfer plus fast excited state intramolecular proton transfer (ESIPT), at low temperatures; a vibrational structure also develops which is due to C=O and OH stretches. On red edge excitation (REE), only the dimer-type (UV) emission is observed, which shifts with excitation energy resembling emission due to site selectivity. Due to the asymmetry of the double potential energy curves of D and T, all dimers can be trapped in the D minimum. The UV emission of the dimer is accompanied by the Stokes' shifted tautomer emission on excitation at 1050 cm(-1) higher than the (0,0) band of D, which is interpreted as the barrier height of the double potential energy curves of D and T. Time-resolved studies at various temperatures have helped to clarify the photophysics of crystalline SA.</style></abstract><accession-num><style face="normal" font="default" size="100%">ISI:A1995TB02300004</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">Tripathi, H. B.</style></author><author><style face="normal" font="default" size="100%">Pant, D. D.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Cryogenic studies, site selectivity and discrete fluorescence in salicylic acid dimer</style></title><secondary-title><style face="normal" font="default" size="100%">J. Photochem. Photobiol., AJ. Photochem. Photobiol., A</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">fluorescence salicylic acid dimer photophysics cryogenic</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1995</style></year></dates><number><style face="normal" font="default" size="100%">Copyright (C) 2010 American Chemical Society (ACS). All Rights Reserved.</style></number><publisher><style face="normal" font="default" size="100%">Elsevier</style></publisher><volume><style face="normal" font="default" size="100%">90</style></volume><pages><style face="normal" font="default" size="100%">103-8</style></pages><isbn><style face="normal" font="default" size="100%">1010-6030</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><work-type><style face="normal" font="default" size="100%">10.1016/1010-6030(95)04096-X</style></work-type></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Nagasawa, Y.</style></author><author><style face="normal" font="default" size="100%">Yartsev, A. P.</style></author><author><style face="normal" font="default" size="100%">Tominaga, K.</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">Johnson, A. E.</style></author><author><style face="normal" font="default" size="100%">Yoshihara, K.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">DYNAMICAL ASPECTS OF ULTRAFAST INTERMOLECULAR ELECTRON-TRANSFER FASTER THAN SOLVATION PROCESS - SUBSTITUENT EFFECTS AND ENERGY-GAP DEPENDENCE</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Physical ChemistryJournal of Physical Chemistry</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1995</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Jan</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">2</style></number><volume><style face="normal" font="default" size="100%">99</style></volume><pages><style face="normal" font="default" size="100%">653-662</style></pages><isbn><style face="normal" font="default" size="100%">0022-3654</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">We have investigated intermolecular electron transfer (ET) from electron-donating solvents (aniline and N,N-dimethylaniline) to coumarins in the excited state by means of the femtosecond fluorescence up-conversion technique. The coumarins we studied have a variety of structures with different substituents in the 4- and 7-positions. The ET occurs on a time scale ranging from a few nanoseconds to a couple of hundred femtoseconds depending on the structure of the coumarins and solvent. As for the 7-position, as the length of the alkyl chain on the amino group is longer, the ET is slower, and when the amino group is fixed by a double-hexagonal ring, it is slowest. When the electron-accepting ability of the substituent in the 4-position is increased, the reaction occurs faster. The origin of this substituent effect is mainly attributed to the variation of the energy gap between the reactant and product states. This is confirmed by theoretical calculations in terms of the extended Sumi-Marcus two-dimensional model. Good agreement between the experiment and calculation indicates that some of the reactions take place from the relaxed vibrational state of reactant to the excited vibrational states of high-frequency modes of product states. The simulated population decays for nonequilibrium configuration of solvents agreed well with experimental data. In the steady-state fluorescence spectra was also observed an effect of very fast fluorescence quenching due to ET; i.e., the amount of fluorescence Stokes shift depends on the rate of ET because the excited state is quenched in competition with thermal equilibration of the solvent configuration. We regard this spectral shift as the result of the ''chemical timing'' effect in solution.</style></abstract><accession-num><style face="normal" font="default" size="100%">ISI:A1995QB56800033</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">Joshi, G. C.</style></author><author><style face="normal" font="default" size="100%">Tripathi, H. B.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Excited state hydrogen bonding of the 2-naphthol-triethylamine system in 1,4-dioxane</style></title><secondary-title><style face="normal" font="default" size="100%">Chem. Phys. Lett.Chem. Phys. Lett.</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">excited state hydrogen bonding naphthol triethylamine</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1995</style></year></dates><number><style face="normal" font="default" size="100%">Copyright (C) 2010 American Chemical Society (ACS). All Rights Reserved.</style></number><publisher><style face="normal" font="default" size="100%">Elsevier</style></publisher><volume><style face="normal" font="default" size="100%">237</style></volume><pages><style face="normal" font="default" size="100%">356-60</style></pages><isbn><style face="normal" font="default" size="100%">0009-2614</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><work-type><style face="normal" font="default" size="100%">10.1016/0009-2614(95)00326-Y</style></work-type></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">Petek, H.</style></author><author><style face="normal" font="default" size="100%">Yoshihara, K.</style></author><author><style face="normal" font="default" size="100%">Nagashima, U.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">EXCITED-STATE ENOL-KETO TAUTOMERIZATION IN SALICYLIC-ACID - A SUPERSONIC FREE JET STUDY</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Chemical PhysicsJournal of Chemical Physics</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1995</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Oct</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">13</style></number><volume><style face="normal" font="default" size="100%">103</style></volume><pages><style face="normal" font="default" size="100%">5290-5307</style></pages><isbn><style face="normal" font="default" size="100%">0021-9606</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Excited state enol-keto isomerization in salicylic acid (SA) monomer and dimer has been studied in a supersonic free jet expansion. Two carboxylic group rotamers of SA with significantly different photophysical properties are found in the expansion. Rotamer I, the major form of SA in the expansion, has an intramolecular hydrogen bond and can undergo excited state tautomerization reaction. Its S-1 origin is at 335.34 nm. Single vibronic level emission spectra are dominated by progressions in OH stretching (3230 cm(-1)), and in-plane bending of the carboxylic group (240 cm(-1)). The spectra appear to consist of two components, normal (UV) and tautomer (BLUE) emissions, even at the origin. The intensity of the BLUE relative to the UV emission depends on the vibronic state, rather than the excess vibrational energy between the origin and 1100 cm(-1). The fluorescence decay time profiles for both the emission components of rotamer I are identical within similar to similar to 1 ns experimental time resolution. A nonradiative decay process with an activation energy of similar to 1100 cm(-1) is deduced from an abrupt decrease in fluorescence lifetimes above this energy. The rotamer II cannot undergo excited state tautomerization. Its electronic origin is at 311.52 nm and emits only UV fluorescence. Upon increasing the concentration of the SA sample, a new spectrum is observed. Due to a nonlinear concentration dependence of the intensity and the propensity of SA to form dimers in solution, it is assigned to the SA dimer. This spectrum shows possible evidence of double proton transfer in the S-1 state. (C) 1995 American Institute of Physics.</style></abstract><accession-num><style face="normal" font="default" size="100%">ISI:A1995RW88100011</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">Joshi, G. C.</style></author><author><style face="normal" font="default" size="100%">Tripathi, H. B.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">EXCITED-STATE HYDROGEN-BONDING OF THE 2-NAPHTHOL-TRIETHYLAMINE SYSTEM IN 1,4-DIOXANE</style></title><secondary-title><style face="normal" font="default" size="100%">Chemical Physics LettersChemical Physics Letters</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1995</style></year><pub-dates><date><style  face="normal" font="default" size="100%">May</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">3-4</style></number><volume><style face="normal" font="default" size="100%">237</style></volume><pages><style face="normal" font="default" size="100%">356-360</style></pages><isbn><style face="normal" font="default" size="100%">0009-2614</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The 2-naphthol-triethylamine (2NP-TEA) system in a nonpolar hydrogen bonding solvent, 1,4-dioxane, has been found to show weak exciplex emission. The excited state hydrogen bonding reaction has been found to be reversible. The quenching of exciplex emission with increasing TEA concentration has also been observed. Excited state reaction rates have been determined.</style></abstract><accession-num><style face="normal" font="default" size="100%">ISI:A1995QZ18400025</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Pant, D. D.</style></author><author><style face="normal" font="default" size="100%">Joshi, H. C.</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">Tripathi, H. B.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Dual emission and double proton transfer in salicylic acid</style></title><secondary-title><style face="normal" font="default" size="100%">Chem. Phys.Chem. Phys.</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">double proton transfer tunneling excited state</style></keyword><keyword><style  face="normal" font="default" size="100%">dual emission proton transfer salicylic acid</style></keyword><keyword><style  face="normal" font="default" size="100%">intramol proton transfer salicylic acid</style></keyword><keyword><style  face="normal" font="default" size="100%">photophysics salicylic acid monomer dimer</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1994</style></year></dates><number><style face="normal" font="default" size="100%">Copyright (C) 2010 American Chemical Society (ACS). All Rights Reserved.</style></number><volume><style face="normal" font="default" size="100%">185</style></volume><pages><style face="normal" font="default" size="100%">137-44</style></pages><isbn><style face="normal" font="default" size="100%">0301-0104</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><work-type><style face="normal" font="default" size="100%">10.1016/0301-0104(94)00090-5</style></work-type></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Pant, D. D.</style></author><author><style face="normal" font="default" size="100%">Joshi, H. C.</style></author><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">Tripathi, H. B.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">DUAL EMISSION AND DOUBLE PROTON-TRANSFER IN SALICYLIC-ACID</style></title><secondary-title><style face="normal" font="default" size="100%">Chemical PhysicsChemical Physics</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1994</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Jul</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">1</style></number><volume><style face="normal" font="default" size="100%">185</style></volume><pages><style face="normal" font="default" size="100%">137-144</style></pages><isbn><style face="normal" font="default" size="100%">0301-0104</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The photophysics of salicylic acid (SA) monomer and dimer has been studied by using steady-state and time-resolved spectroscopic techniques. Dilute solution in alkanes emits at 450 nm, which as in methyl salicylate is due to intramolecular proton transfer. In concentrated solutions and in solid state, the SA dimer shows two emissions, at 370 nm and 450 nm, with some unusual behaviour in both the steady state and the time domain fluorescence. The concept of double proton transfer and the tunneling mechanism in the excited state can rationalize the observed photophysical behaviour.</style></abstract><accession-num><style face="normal" font="default" size="100%">ISI:A1994NV74000014</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">Petek, H.</style></author><author><style face="normal" font="default" size="100%">Yoshihara, K.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">EXCIPLEX FORMATION IN VAN-DER-WAALS COMPLEXES OF NAPHTHALENE TRIETHYLAMINE IN A SUPERSONIC JET</style></title><secondary-title><style face="normal" font="default" size="100%">Chemical Physics LettersChemical Physics Letters</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1993</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Oct</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">1-2</style></number><volume><style face="normal" font="default" size="100%">213</style></volume><pages><style face="normal" font="default" size="100%">75-83</style></pages><isbn><style face="normal" font="default" size="100%">0009-2614</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Van der Waals complexes composed of naphthalene and triethylamine have been studied in free jet expansions by fluorescence excitation and resonance-enhanced two-photon ionization techniques. Intermolecular vibrational bands with frequencies of 8 and 40 cm-1 appear to promote exciplex formation. The rates of exciplex formation have been measured as a function of excitation energy. The exciplex formation is found to be vibrational state dependent and to be enhanced above 432 cm-1.</style></abstract><accession-num><style face="normal" font="default" size="100%">ISI:A1993LZ69200013</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">Tripathi, H. B.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">FLUORESCENCE QUENCHING OF CARBAZOLE BY TRIETHYLAMINE - EXCIPLEX FORMATION IN POLAR AND NONPOLAR-SOLVENTS</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of LuminescenceJournal of Luminescence</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1993</style></year><pub-dates><date><style  face="normal" font="default" size="100%">May-Jun</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">3</style></number><volume><style face="normal" font="default" size="100%">55</style></volume><pages><style face="normal" font="default" size="100%">153-158</style></pages><isbn><style face="normal" font="default" size="100%">0022-2313</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Fluorescence quenching of carbazole with triethylamine has been studied by using steady state and time resolved fluorescence spectroscopy. The excited state Stern-Volmer quenching rates have been given as a function of ionization potential of the amines. The exciplex photophysics has been discussed in nonpolar and polar solvents.</style></abstract><accession-num><style face="normal" font="default" size="100%">ISI:A1993LL22600005</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">Tripathi, H. B.</style></author><author><style face="normal" font="default" size="100%">Pant, D. D.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Reinvestigation of photophysics of 2-naphthol-amine hydrogen bonded system II. Triplex formation with butylamine</style></title><secondary-title><style face="normal" font="default" size="100%">J. Lumin.J. Lumin.</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">exciplex triplex fluorescence quenching naphthol butylamine</style></keyword><keyword><style  face="normal" font="default" size="100%">naphthol butylamine hydrogen bond photophys</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1991</style></year></dates><number><style face="normal" font="default" size="100%">Copyright (C) 2010 American Chemical Society (ACS). All Rights Reserved.</style></number><volume><style face="normal" font="default" size="100%">47</style></volume><pages><style face="normal" font="default" size="100%">261-7</style></pages><isbn><style face="normal" font="default" size="100%">0022-2313</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">Tripathi, H. B.</style></author><author><style face="normal" font="default" size="100%">Pant, D. D.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">REINVESTIGATION OF PHOTOPHYSICS OF 2-NAPHTHOL-AMINE HYDROGEN-BONDED SYSTEM .2. TRIPLEX FORMATION WITH BUTYLAMINE</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of LuminescenceJournal of Luminescence</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1991</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Feb</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">5</style></number><volume><style face="normal" font="default" size="100%">47</style></volume><pages><style face="normal" font="default" size="100%">261-267</style></pages><isbn><style face="normal" font="default" size="100%">0022-2313</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">1:1 complex formation in the ground state and non-emitting encounter complex formation in the excited state between 2-naphthol and butylamine are discussed. On increasing the amine concentration, fluorescence intensity and the lifetime of the complex decrease with appearance of another red shifted emission band, which is ascribed to a triplex.</style></abstract><accession-num><style face="normal" font="default" size="100%">ISI:A1991EZ48500008</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">Tripathi, H. B.</style></author><author><style face="normal" font="default" size="100%">Pant, D. D.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Steady state and transient study of 2-naphthol-diethylamine charge transfer complexes in polar and non-polar solvents</style></title><secondary-title><style face="normal" font="default" size="100%">J. Photochem. Photobiol., AJ. Photochem. Photobiol., A</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">fluorescence quenching diethylamine naphthol exciplex solvent</style></keyword><keyword><style  face="normal" font="default" size="100%">naphthol diethylamine hydrogen bond complex photolysis</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1991</style></year></dates><number><style face="normal" font="default" size="100%">Copyright (C) 2010 American Chemical Society (ACS). All Rights Reserved.</style></number><volume><style face="normal" font="default" size="100%">58</style></volume><pages><style face="normal" font="default" size="100%">295-306</style></pages><isbn><style face="normal" font="default" size="100%">1010-6030</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><work-type><style face="normal" font="default" size="100%">10.1016/1010-6030(91)87048-Z</style></work-type></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">Tripathi, H. B.</style></author><author><style face="normal" font="default" size="100%">Pant, D. D.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">STEADY-STATE AND TRANSIENT STUDY OF 2-NAPHTHOL-DIETHYLAMINE CHARGE-TRANSFER COMPLEXES IN POLAR AND NONPOLAR-SOLVENTS</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Photochemistry and Photobiology a-ChemistryJournal of Photochemistry and Photobiology a-Chemistry</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1991</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Jun</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">3</style></number><volume><style face="normal" font="default" size="100%">58</style></volume><pages><style face="normal" font="default" size="100%">295-306</style></pages><isbn><style face="normal" font="default" size="100%">1010-6030</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Hydrogen bonded complexes of 2-naphthol-diethylamine were investigated in various polar and non-polar solvents. The ground state equilibrium constants and excited state Stern-Volmer quenching rates were calculated. The excitation spectra and time-resolved emission spectra indicate that, in non-polar solvents, the emission of the ground state hydrogen bonded complex is red shifted relative to that of free 2-naphthol, whereas the encounter complex formed in the excited state exhibits no emission. However, in polar solvents, the usual excited state proton transfer reaction takes place producing a risetime in the fluorescence decay curves and a large red shift in the spectra.</style></abstract><accession-num><style face="normal" font="default" size="100%">ISI:A1991FR61700003</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">Tripathi, H. B.</style></author><author><style face="normal" font="default" size="100%">Pant, D. D.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Reinvestigation of the photophysics of the 2-naphthol-amine hydrogen-bonded system. I</style></title><secondary-title><style face="normal" font="default" size="100%">Chem. Phys.Chem. Phys.</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">exciplex emission naphthol triethylamine</style></keyword><keyword><style  face="normal" font="default" size="100%">photophysics naphthol triethylamine hydrogen bond</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1990</style></year></dates><number><style face="normal" font="default" size="100%">Copyright (C) 2010 American Chemical Society (ACS). All Rights Reserved.</style></number><volume><style face="normal" font="default" size="100%">147</style></volume><pages><style face="normal" font="default" size="100%">173-87</style></pages><isbn><style face="normal" font="default" size="100%">0301-0104</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><work-type><style face="normal" font="default" size="100%">10.1016/0301-0104(90)85033-S</style></work-type></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">Tripathi, H. B.</style></author><author><style face="normal" font="default" size="100%">Pant, D. D.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">REINVESTIGATION OF THE PHOTOPHYSICS OF THE 2-NAPHTHOL-AMINE HYDROGEN-BONDED SYSTEM .1</style></title><secondary-title><style face="normal" font="default" size="100%">Chemical PhysicsChemical Physics</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1990</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Oct</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">1</style></number><volume><style face="normal" font="default" size="100%">147</style></volume><pages><style face="normal" font="default" size="100%">173-187</style></pages><isbn><style face="normal" font="default" size="100%">0301-0104</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><accession-num><style face="normal" font="default" size="100%">ISI:A1990EC61000019</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">P. 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Lumin.</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">emission spectra naphthol triethylamine polar solvent</style></keyword><keyword><style  face="normal" font="default" size="100%">hydrogen bond naphthol triethylamine polar solvent</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1990</style></year></dates><number><style face="normal" font="default" size="100%">Copyright (C) 2010 American Chemical Society (ACS). All Rights Reserved.</style></number><volume><style face="normal" font="default" size="100%">46</style></volume><pages><style face="normal" font="default" size="100%">25-31</style></pages><isbn><style face="normal" font="default" size="100%">0022-2313</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><work-type><style face="normal" font="default" size="100%">10.1016/0022-2313(90)90078-P</style></work-type></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">P. B. Bisht</style></author><author><style face="normal" font="default" size="100%">Tripathi, H. B.</style></author><author><style face="normal" font="default" size="100%">Pant, D. 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