Polarization-dependent vibrational shifts on dielectric substrates

Literature Information

Publication Date 2020-07-09
DOI 10.1039/D0CP02399J
Impact Factor 3.676
Authors

W. Wang, A. Nefedov, Y. Wang, C. Wöll


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Abstract

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.

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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
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