Surface-Ripple Mechanism for Brillouin Scattering of Reflected Light from Bulk Acoustic Waves
- 25 July 1977
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 39 (4), 222-225
- https://doi.org/10.1103/physrevlett.39.222
Abstract
We demonstrate the efficiency of scattering of reflected light from shear bulk acoustic phonons, acoustoelectrically amplified in the frequency range of GHz in GaAs and CdS. Bulk-phonon-induced surface ripples, as opposed to fluctuations in the dielectric constant, are shown by several experiments to provide the dominant scattering mechanism.
Keywords
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