NON-MARKOVIAN DEPHASING OF MOLECULES IN SOLUTION MEASURED WITH 3-PULSE FEMTOSECOND PHOTON-ECHOES

被引：167

作者：

BIGOT, JY ^{[1
]}

PORTELLA, MT ^{[1
]}

SCHOENLEIN, RW ^{[1
]}

BARDEEN, CJ ^{[1
]}

MIGUS, A ^{[1
]}

SHANK, CV ^{[1
]}

机构：

[1] ECOLE POLYTECH,ECOLE NORMALE SUPER TECH AVANCEES,OPT APPL LAB,F-91120 PALAISEAU,FRANCE

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 66卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.66.1138

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The electronic dephasing of large molecules in solution is investigated with three-pulse photon echoes generated by 6-fs optical pulses. The observed dephasing behavior, which is analyzed with a model based on a stochastic coupling of the molecules with their heat bath, is clearly shown to be non-Markovian. Moreover, the correlation function of the fluctuations asymptotically approaches an exponential with characteristic times varying from 20 to 80 fs, depending on the solvent environment.

引用

页码：1138 / 1141

页数：4

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