Observation of grating-induced intersubband emission from GaAs/AlGaAs superlattices
- 31 October 1988
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 53 (18) , 1714-1716
- https://doi.org/10.1063/1.99803
Abstract
We have observed far-infrared emission due to electronic transitions between subbands in GaAs/AlGaAs superlattices. Population of higher subbands is achieved by applying an electric field in the plane of the layers. The radiation is coupled out of the sample by a metallic grating on the surface.Keywords
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