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Review: An Optical Surface Probe by Reflectance Anisotropy Spectroscopy
Author(s) -
Orhan Zeybek
Publication year - 2019
Publication title -
hittite journal of science and engineering
Language(s) - English
Resource type - Journals
eISSN - 2149-2123
pISSN - 2148-4171
DOI - 10.17350/hjse19030000140
Subject(s) - anisotropy , reflectivity , spectroscopy , diffuse reflectance infrared fourier transform , materials science , surface (topology) , optics , optical anisotropy , bidirectional reflectance distribution function , chemistry , physics , geometry , mathematics , biochemistry , photocatalysis , quantum mechanics , catalysis
face and interface information. RAS measures the difference in ref lectance of light Reflectance anisotropy spectroscopy (RAS) is an optical technique to produce surlinearly polarised along two orthogonal axes in the surface at near normal incidence as a function of photon energy. The quantity obtained by RAS is the so-called ref lectance anisotropy. Since only the surface is anisotropic, the measured ref lectance anisotropy is connected only with the atomic composition of the surface, not of the bulk. This review presents theoretical as well as experimental procedure to explain RAS technique.

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