High-sensitivity measurement of ultrafast transient infrared spectra based on optically heterodyned detection of absorption anisotropy

被引：13

作者：

Okamoto, H ^{[1
]}

机构：

[1] Univ Tokyo, Sch Sci, Res Ctr Spectrochem, Bunkyo Ku, Tokyo 113, Japan

来源：

CHEMICAL PHYSICS LETTERS | 1998年 / 283卷 / 1-2期

关键词：

D O I：

10.1016/S0009-2614(97)01306-7

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：

A method for high-sensitivity measurement of ultrafast transient infrared spectra is proposed. It is based upon optically heterodyned detection (OHD) of transient absorption anisotropy, and its principle is similar to OHD-RIKES (Raman-induced Kerr-effect spectroscopy). The usefulness of this method is examined on a transient infrared spectrum of electronically excited 4-dimethylamino-4'-nitrostilbene in a benzonitrile solution. It is found that the present method is much more sensitive than the conventional pump-probe measurement of a transient infrared absorption. The advantages and drawbacks of this method are discussed. (C) 1998 Elsevier Science B.V.

引用

页码：33 / 38

页数：6

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