Femtosecond high-sensitivity, chirp-free transient absorption spectroscopy using kilohertz lasers

被引：102

作者：

Klimov, VI ^{[1
]}

McBranch, DW ^{[1
]}

机构：

[1] Univ Calif Los Alamos Natl Lab, Chem Sci & Technol Div, Los Alamos, NM 87545 USA

来源：

OPTICS LETTERS | 1998年 / 23卷 / 04期

关键词：

D O I：

10.1364/OL.23.000277

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A simple method is demonstrated for high-sensitivity, chirp-free measurements of femtosecond (fs) transient absorption over the entire bandwidth of a white-light continuum probe. This technique uses phase-sensitive detection, with spectral scanning and simultaneous adjustment of the time delay between pump and probe pulses; it permits a direct measurement of spectra undistorted by chirp at all time scales, limited only by the resolution of the fs source. The method is applied to study the ultrafast relaxation dynamics of rr-conjugated oligomers and semiconductor nanocrystals. (C) 1998 Optical Society of America.

引用

页码：277 / 279

页数：3

共 9 条

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