Single source coherent anti-Stokes Raman microspectroscopy using spectral focusing

被引：53

作者：

Langbein, Wolfgang ^{[2
]}

Rocha-Mendoza, Israel ^{[1
,2
]}

Borri, Paola ^{[1
]}

机构：

[1] Cardiff Univ, Sch Biosci, Cardiff CF10 3AX, S Glam, Wales

[2] Cardiff Univ, Sch Phys & Astron, Cardiff CF24 3AA, S Glam, Wales

来源：

APPLIED PHYSICS LETTERS | 2009年 / 95卷 / 08期

基金：

英国生物技术与生命科学研究理事会;

关键词：

coherent antiStokes Raman scattering; mirrors; optical focusing; vibrational states; SCATTERING MICROSCOPY; HIGH-SENSITIVITY; LASER-PULSES; SPECTROSCOPY; RESOLUTION;

D O I：

10.1063/1.3216073

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We demonstrate coherent anti-Stokes Raman scattering (CARS) microspectroscopy using a single Ti:sapphire laser oscillator and simple passive optical elements. Spectral selection by dichroic mirrors and linear chirping by glass elements creates a vibrational excitation tuneable over a large spectral range (similar to 800-2200 cm(-1)) with adjustable spectral resolution (similar to 10-100 cm(-1)). We furthermore demonstrate the applicability of differential CARS, enhancing the chemical selectivity, with the proposed single-laser configuration.

引用

页数：3

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