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

Christianus M.J. Wijers, G.P.M. Poppe, G.P.M. Poppe

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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.
Original languageUndefined
Pages (from-to)624-627
Issue number1-3
Publication statusPublished - 1990


  • METIS-128487
  • IR-72913

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