Surface brillouin scattering in polycrystalline gold
- 15 July 1986
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 34 (2) , 1296-1299
- https://doi.org/10.1103/physrevb.34.1296
Abstract
Surface Brillouin spectra of supported gold films (500 and 930 Å) and of bulk gold have been measured with a tandem multipass Fabry-Perot interferometer. By fitting the calculated cross section to the experimental data the elastic and the photoelastic constants of gold have been derived. The surface spectrum of bulk gold shows, in addition to the Rayleigh wave peak, a broad resonance which is interpreted in terms of a leaky surface pseudomode of longitudinal character.Keywords
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