Optical reflectance anisotropy of Ag and Au (110) single crystals

W.L. Mochán, R.G. Barrera, Y. Borensztein and A. Tadjeddine

Physica A: Statistical Mechanics and its Applications, 1994, vol. 207, issue 1, 334-339

Abstract: We have developed a theoretical model for describing the electromagnetic response of noble metal surfaces. The model takes into account the d to s-p interband transitions as well the actual crystalline geometry. The surface response is incorporated in a calculation of the optical reflectance, and it yields corrections to Fresnel's formulae which depend on the angle between the polarization vector and the surface principal directions. The anisotropy effect has been confirmed by surface reflectance anisotropy spectroscopy experiments performed on (110) Ag and Au surfaces. We show that the main contribution to the anisotropy is the screened surface local-field effect on resonant dipolar oscillations localized near the surface.

Date: 1994
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:207:y:1994:i:1:p:334-339

DOI: 10.1016/0378-4371(94)90392-1

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