Heterodyne coherent anti-Stokes Raman scattering (CARS) imaging
Heterodyne coherent anti-Stokes Raman scattering (CARS) imaging
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DOI：
10.1364/ol.31.000241
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发表时间：
2006-01-15
期刊：
影响因子：
3.6
通讯作者：
Xie, XS
中科院分区：
文献类型：
--
作者：
Potma, EO;Evans, CL;Xie, XS
利用外差相干反斯托克斯拉曼散射（CARS）干涉显微技术实现了无非谐振背景的快速非线性振动成像。该技术完全分离了非线性磁化率chi（(3)）的实响应和虚响应，并产生了振动模态集中的线性信号。我们表明，外差CARS显微镜允许检测弱振动共振，否则被非共振背景的强干扰所掩盖。(c) 2006年美国光学学会。
We have achieved rapid nonlinear vibrational imaging free of nonresonant background with heterodyne coherent anti-Stokes Raman scattering (CARS) interferometric microscopy. This technique completely separates the real and imaginary responses of nonlinear susceptibility chi((3)) and yields a signal that is linear in the concentration of vibrational modes. We show that heterodyne CARS microscopy permits the detection of weak vibrational resonances that are otherwise overshadowed by the strong interference of the nonresonant background. (c) 2006 Optical Society of America.