Wave Vector Dependent Light Scattering Intensities by Polar Modes in GaAs
Open Access
- 1 July 1977
- journal article
- Published by Walter de Gruyter GmbH in Zeitschrift für Naturforschung A
- Vol. 32 (7) , 731-735
- https://doi.org/10.1515/zna-1977-0711
Abstract
Light scattering intensities by the polaritons of F2-type in GaAs have been experimentally studied. The spectra were excited by an YAG: Nd3+ laser in the infrared. When using the scattering intensities derived from the polar TO- and LO-phonons as input data for calculations, the k-dependent intensities in the polariton region could be verified within less than a few percent. The intensity variation for larger wave vectors was more precisely to be determined and verified than the frequency shifts.Keywords
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