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首页> 外文期刊>Chemical Physics Letters >Gas- and condensed-phase sensing by coherent anti-Stokes Raman scattering in a mesoporous silica aerogel host
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Gas- and condensed-phase sensing by coherent anti-Stokes Raman scattering in a mesoporous silica aerogel host

机译:通过中孔二氧化硅气凝胶基质中相干反斯托克斯拉曼散射的气相和冷凝相传感

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摘要

We demonstrate efficient coherent anti-Stokes Raman scattering from Raman-active modes of toluene molecules in solution and gas-phase nitrogen molecules infiltrated into mesoporous silica aerogels. Due to their high porosity, high transparency in the visible, and weak scattering, silica aerogels are shown to provide an ideal host for Raman-active gases and liquids, detected and analyzed by coherent anti-Stokes Raman scattering, allowing the creation of gas- and condensed-phase sensors of chemical and biological species, including sensors of pollutants and aerosols. (C) 2004 Published by Elsevier B.V.
机译:我们证明了有效的相干反斯托克斯拉曼散射从溶液中的甲苯分子和渗透到中孔二氧化硅气凝胶的气相氮分子的拉曼活性模式引起。由于它们的高孔隙率,可见光中的高透明性以及微弱的散射,显示出二氧化硅气凝胶是拉曼活性气体和液体的理想基质,可以通过相干的反斯托克斯拉曼散射进行检测和分析,从而产生气体。化学和生物物种的冷凝相传感器,包括污染物和气溶胶的传感器。 (C)2004由Elsevier B.V.发布

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