The interaction of light with matter at surfaces of dielectrics strongly depends on polarization. Here, we present the first infrared spectroscopic evidence for significant polarization effects in the spectroscopic detection of adsorbate vibrational frequencies. In addition to much larger peak intensities for p-polarized light relative to s-polarization, a small but distinct blue shift was identified for CO adsorbed at the surfaces of two prototype dielectric substrates, CeO₂(111) and CaCO₃(10.4). A simulation using a layer model yields very good agreement with experiment.

中文翻译：

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介电基片上与极化有关的振动位移。

光与电介质表面物质的相互作用在很大程度上取决于极化。在这里，我们提出了在吸收光振动频率的光谱检测中明显偏振效应的第一个红外光谱证据。除了相对于s偏振的p偏振光具有更大的峰值强度外，对于在两个原型电介质衬底CeO ₂（111）和CaCO ₃（10.4）上吸附的CO，还发现了一个小而明显的蓝移。使用层模型进行的仿真与实验非常吻合。