使用亚纳秒超连续光源的超宽带（>2000 cm-1）多路相干反斯托克斯拉曼散射光谱学。

Ultrabroadband (>2000 cm-1) multiplex coherent anti-Stokes Raman scattering spectroscopy using a subnanosecond supercontinuum light source.

作者信息

Okuno Masanari, Kano Hideaki, Leproux Philippe, Couderc Vincent, Hamaguchi Hiro-O

机构信息

Department of Chemistry, School of Science, The University of Tokyo, Hongo 7-3-1, Bunkyo, Tokyo, 113-0033, Japan.

出版信息

Opt Lett. 2007 Oct 15;32(20):3050-2. doi: 10.1364/ol.32.003050.

DOI:10.1364/ol.32.003050

PMID:17938696

Abstract

We have developed ultrabroadband (>2000 cm(-1)) multiplex coherent anti-Stokes Raman scattering (CARS) spectroscopy using a subnanosecond (sub-ns) microchip laser source. A photonic crystal fiber specifically designed for sub-ns supercontinuum (SC) generation has been used for obtaining ultrabroadband Stokes radiation, which enables us to achieve simultaneous vibrational excitation in the range from 800 to 3000 cm(-1). We have successfully obtained multiplex CARS spectra for several molecular liquids. Since the CARS system using the sub-ns SC is simple and compact, it can be easily applied to ultrabroadband multiplex CARS microspectroscopy.

摘要

我们利用亚纳秒（亚纳秒）微芯片激光源开发了超宽带（>2000 cm(-1)）多路相干反斯托克斯拉曼散射（CARS）光谱。一种专门为亚纳秒超连续谱（SC）产生而设计的光子晶体光纤已被用于获得超宽带斯托克斯辐射，这使我们能够在800至3000 cm(-1)范围内实现同时振动激发。我们已经成功获得了几种分子液体的多路CARS光谱。由于使用亚纳秒SC的CARS系统简单紧凑，它可以很容易地应用于超宽带多路CARS显微光谱。