Wavelength-resolved stimulated photon echoes: Direct observation of ultrafast intramolecular vibrational contributions to electronic dephasing

被引：54
作者：
Book, LD
Scherer, NF
机构：
[1] Univ Chicago, James Franck Inst, Dept Chem, Chicago, IL 60637 USA
[2] Univ Chicago, Inst Biophys Dynam, Chicago, IL 60637 USA
来源：
JOURNAL OF CHEMICAL PHYSICS | 1999年 / 111卷 / 03期
关键词：
D O I：
10.1063/1.479366
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Novel wavelength-resolved stimulated photon echo measurements on a dye molecule in solution are presented. Data are simulated within the multimode Brownian oscillator model using the spectral density of de Boeij [J. Phys. Chem. 100, 11806 (1996)] for the same solute-solvent system. For photon echo population times < 50 fs there are considerable differences between the measured and calculated data. Aided by further simulations, we conclude that these discrepancies result from dephasing dynamics of high frequency intramolecular vibrational modes not included in the previously derived spectral density. (C) 1999 American Institute of Physics. [S0021-9606(99)51427-X].
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页码：792 / 795
页数：4
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