Ultrafast photoisomerization in DCM dye observed by new femtosecond Raman spectroscopy

被引：27

作者：

Yoshizawa, M ^{[1
]}

Kubo, M ^{[1
]}

Kurosawa, M ^{[1
]}

机构：

[1] Tohoku Univ, Grad Sch Sci, Dept Phys, Aoba Ku, Sendai, Miyagi 9808578, Japan

来源：

JOURNAL OF LUMINESCENCE | 2000年 / 87-9卷

关键词：

photoisomerization; DCM; time-resolved Raman spectroscopy;

D O I：

10.1016/S0022-2313(99)00381-6

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Ultrafast trans-cis photoisomerization in DCM solutions has been investigated using new time-resolved Raman spectroscopy. The new method measures stimulated Raman scattering in photoinduced transient species using a Raman pump pulse with narrow bandwidth and a femtosecond supercontinuum probe pulse. The temporal and spectral resolutions obtained in this study are 250 fs and 25 cm(-1), respectively. The observed Raman signals are separated to two groups from the temporal dependence and assigned to an intermediate state between trans- and cis-forms and a charge-transfer state in DCM. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：739 / 741

页数：3