OBSERVATION OF MOLECULAR VIBRATIONS IN THE TIME DOMAIN WITH INCOHERENT LASER-PULSES

被引：8

作者：

HUANG, ZQ

XIE, YJ

HUANG, GL

KWOK, HS

机构：

[1] Department of Electrical Engineering, Bonner Hall, State University of New York at Buffalo, Amherst, NY

[2] Department of Chemistry, University of Illinois, Chicago, IL

来源：

OPTICS LETTERS | 1990年 / 15卷 / 09期

关键词：

D O I：

10.1364/OL.15.000501

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

With the method of self-diffraction of incoherent light, molecular vibrations were observed in real time in various dye molecules pumped near the absorption edge. In Rhodamine 560, 35-fsec oscillations in the signal were measured, which corresponds to a vibrational frequency of 1000 cm−1. Simultaneously, this technique can be used to deduce the ultrafast dephasing times in the molecular vibrational quasi-continuum. Dephasing times of 20 and 150 fsec were observed in Rhodamine 590 and Rhodamine 560, respectively. © 1990 Optical Society of America.

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页码：501 / 503

页数：3

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