MODULATION OF OPTICAL ABSORPTION AT THE INTRINSIC EDGE BY ACOUSTOELECTRIC DOMAINS IN n-GaAs
- 15 February 1968
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 12 (4), 118-120
- https://doi.org/10.1063/1.1651917
Abstract
The enhancement of optical absorption by propagating acoustoelectric domains is observed in n‐GaAs at 77°K. The spectral dependence of this absorption corresponds to an exponential broadening of the intrinsic absorption edge. Several possible mechanisms for this effect are considered in terms of the electric field and the acoustic flux present in the domain.Keywords
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