Coherent anti-Stokes Raman scattering spectral interferometry:: determination of the real and imaginary components of nonlinear susceptibility χ(3) for vibrational microscopy

被引：162

作者：

Evans, CL ^{[1
]}

Potma, EO ^{[1
]}

Xie, XSN ^{[1
]}

机构：

[1] Harvard Univ, Dept Chem & Biol Chem, Cambridge, MA 02138 USA

来源：

OPTICS LETTERS | 2004年 / 29卷 / 24期

关键词：

D O I：

10.1364/OL.29.002923

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate coherent anti-Stokes Raman scattering (CARS) heterodyne spectral interferometry for retrieval of the real and imaginary components of the third-order nonlinear susceptibility (X-(3)) of molecular vibrations. Extraction of the imaginary component of X-(3) allows a straightforward reconstruction of the vibrationally resonant signal that is completely free of the electronic nonresonant background and resembles the spontaneous Raman spectrum. Heterodyne detection offers potential for signal amplification and enhanced sensitivity for CARS microscopy. (C) 2004 Optical Society of America.

引用

页码：2923 / 2925

页数：3

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