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首页> 外文期刊>The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical >Chirped Coherent Anti-Stokes Raman Scattering for High Spectral Resolution Spectroscopy and Chemically Selective Imaging
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Chirped Coherent Anti-Stokes Raman Scattering for High Spectral Resolution Spectroscopy and Chemically Selective Imaging

机译：rp相干反斯托克斯拉曼散射，用于高光谱分辨率光谱和化学选择性成像

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摘要

We describe a simple multiplex vibrational spectroscopic imaging technique based on employing chirped femtosecond pulses in a coherent anti-Stokes Raman scattering (CARS) scheme.Overlap of a femtosecond Stokes pulse with chirped pump/probe pulses introduces a temporal gate that defines the spectral resolution of the technique,allowing single-shot acquisition of high spectral resolution CARS spectra over a several hundred wavenumber bandwidth.Simulated chirped (c-) CARS spectra match the experimental results,quantifying the dependence of the high spectral resolution on the properties of the chirped pulse.c-CARS spectromicroscopy offers promise as a simple and generally applicable high spatial resolution,chemically specific imaging technique for studying complex biological and materials samples.
机译：我们描述了一种简单的多重振动光谱成像技术，该技术基于相干反斯托克斯拉曼散射（CARS）方案中采用chi飞秒脉冲而实现。该技术允许在几百个波数带宽上单次采集高分辨率的CARS光谱。模拟chi（c-）CARS光谱与实验结果匹配，量化了高光谱分辨率对the脉冲特性的依赖性。 c-CARS光谱显微镜作为一种简单且普遍适用的高空间分辨率，化学特异性成像技术，可用于研究复杂的生物和材料样品，具有广阔的前景。

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