Time-resolved coherent Raman spectroscopy by high-speed pump-probe delay scanning

被引：19

作者：

Domingue, S. R. ^{[1
]}

Winters, D. G. ^{[1
]}

Bartels, R. A. ^{[1
,2
]}

机构：

[1] Colorado State Univ, Dept Elect & Comp Engn, Ft Collins, CO 80523 USA

[2] Colorado State Univ, Sch Biomed Engn, Ft Collins, CO 80523 USA

来源：

OPTICS LETTERS | 2014年 / 39卷 / 14期

关键词：

SCATTERING; GENERATION;

D O I：

10.1364/OL.39.004124

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Using a spinning window pump-probe delay scanner, we demonstrate a means of acquiring time-resolved vibrational spectra at rates up to 700 Hz. The time-dependent phase shift accumulated by the probe pulse in the presence of a coherently vibrating sample gives rise to a Raman-induced frequency shifting readily detectable in a balanced detector. This rapid delay scanning system represents a 23-fold increase in averaging speed and is > 10x faster than state-of-the-art voice coil delay lines. These advancements make pump-probe spectroscopy a more practical means of imaging complex media. (C) 2014 Optical Society of America

引用

页码：4124 / 4127

页数：4

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