Multiplex Raman induced Kerr effect microscopy

被引:17
作者
Bachler, Brandon R. [1 ]
Fermann, Martin E. [2 ]
Ogilvie, Jennifer P. [1 ,2 ]
机构
[1] Univ Michigan, Dept Phys & Biophys, Ann Arbor, MI 48109 USA
[2] IMRA Amer Inc, Ann Arbor, MI 48105 USA
基金
美国国家科学基金会;
关键词
SCATTERING MICROSCOPY; STIMULATED RAMAN; HETERODYNE-DETECTION; EFFECT SPECTROSCOPY; TRANSFORM; PULSE; POLARIZATION; SENSITIVITY; LASER; SPECTRA;
D O I
10.1364/OE.20.000835
中图分类号
O43 [光学];
学科分类号
070207 [光学];
摘要
We report spectrally-resolved chemical imaging based on Raman induced Kerr effect spectroscopy (RIKES). When used with circularly-polarized pump excitation, multiplex RIKES offers the potential for spectrally-resolved imaging free of the nonresonant background that plagues coherent anti-Stokes Raman scattering. RIKES does however have a highly sample-dependent birefringent background that limits its sensitivity and can introduce spectral distortions. We demonstrate that in low birefringence samples multiplex RIKES microscopy offers an enhanced signal-to-noise ratio compared to multiplex stimulated Raman scattering (SRS) when implemented in a high polarization-purity, low frequency chopping scheme. (C)2012 Optical Society of America
引用
收藏
页码:835 / 844
页数:10
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