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首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Sum Frequency Generation Vibrational Spectra: The Influence of Experimental Geometryfor an Absorptive Medium or Media
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Sum Frequency Generation Vibrational Spectra: The Influence of Experimental Geometryfor an Absorptive Medium or Media

机译：总和频率生成振动光谱：实验几何学对一种或多种吸收性介质的影响

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摘要

The influence of experimental geometry on infrared total internal reflection surface sum frequency generation(SFG) vibrational spectra at the water/solid interface has been examined. A detailed analysis of the experimentalgeometry revealed that the enhancement of SFG signal for the "critical angle" can be much weaker thanpreviously thought if the index of refraction of the transmitted or reflected medium is treated as a complexvalue (i.e., the imaginary part of the index of refraction is not zero and not neglected). The theoretical analysisoutlined here agreed well with the experimental results of the SFG spectra of the silica/water interface in twodifferent geometries. This paper deals with the SSP polarization combination.
机译：研究了几何形状对水/固相界面处红外全内反射面总和频率产生（SFG）振动谱的影响。对实验几何结构的详细分析表明，如果将透射或反射介质的折射率视为复数值（即该指数的虚部），则对于“临界角”，SFG信号的增强可能比以前认为的要弱得多。屈光度不为零且不可忽略）。本文概述的理论分析与两种不同几何形状的二氧化硅/水界面的SFG光谱的实验结果非常吻合。本文讨论了SSP极化组合。

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