FEMTOSECOND TIME-RESOLVED COHERENT ANTI-STOKES-RAMAN SPECTROSCOPY OF LIQUID BENZENE - A KUBO RELAXATION FUNCTION-ANALYSIS

被引：40

作者：

JOO, T

ALBRECHT, AC

机构：

[1] Department of Chemistry, Baker Laboratory, Cornell University, Ithaca

来源：

JOURNAL OF CHEMICAL PHYSICS | 1993年 / 99卷 / 05期

关键词：

D O I：

10.1063/1.466194

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：

Femtosecond time-resolved coherent anti-Stokes Raman scattering (TRCARS) for the nu1 ring-breathing mode of neat benzene-h6 and benzene-d6 are reported at room temperature (25-degrees-C) and at 6.5-degrees-C. Ultrafast time resolution permits close investigation of the dephasing dynamics at early times. Deviation from the conventional exponential decay is found. The data are analyzed using Kubo line shape theory.. The correlation time tau(c) and the rms magnitude DELTA of the Bohr frequency modulation are determined for the process responsible for the vibrational dephasing and for the linewidth. Spinning motion is suggested as the stochastic process responsible for the vibrational dephasing in those neat liquids.

引用

页码：3244 / 3251

页数：8

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