Anisotropic off-normal incidence optical reflection from GaP (110) surfaces


Wijers, C.M.J. and Poppe, G.P.M. (1990) Anisotropic off-normal incidence optical reflection from GaP (110) surfaces. Vacuum, 41 (1-3). pp. 624-627. ISSN 0042-207X

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Abstract:This article contains a theoretical study for off-normal incidence surface induced optical anisotropy (SIOA). The discrete dipole approximation was used to calculate the off-normal incidence optical response of slabs. By means of the two slab approach those results were converted to semi-infinite reflectivities. The calculated ellipsometric parameter δΔ shows large variations near the Brewster angle, but only the p-polarized reflection has a clearly increased SIOA sensitivity. So experimentally a straightforward determination of ΔRp should be preferred. Advantages have to be sought in the optical observation of surface state related phenomena at subbandgap conditions.
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Copyright:© 1990 Elsevier
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Metis ID: 128487