Optical anisotropy of nanostructured noble metal surfaces

The reflection anisotropy spectra of the noble metal (110) surfaces are discussed in terms of surface modified bulk transitions within the derivative model and derivative model parameters for a range of variously structured surfaces are presented. The utility and consistency of the derivative model in explaining noble metal spectra is demonstarted. RAS spectra of ion bombarded noble metal surfaces are explained in terms of roughness induced uncertainty in the electronic wavevectors in the surface region. Spectra of nanostructured Cu(110) surfaces are presented and discussed. Contrasting spectral evolution during annealing for the (110) and (771) surfaces is attributed to differing step densities (c) 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.