Electro-optical phenomena accompanying electron and hole heating in superlattices and quantum wells GaAs/AlGaAs and Ge/GeSi

New electro-optical phenomena in quantum-well structures, i.e. modulation of the light absorption and birefringence due to carrier heating in a strong electric field, have been investigated. The effects have revealed different features in the three types of structures under investigation, namely: (1...

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Bibliographic Details
Published in:Superlattices and microstructures 1997-01, Vol.22 (4), p.467-473
Main Authors: Vorobjev, L.E., Danilov, S.N., Zibik, E.A., Firsov, D.A., Shalygin, V.A., Shik, A.Ya, Saidashev, I.I., Aleshkin, V.Ya, Kuznetsov, O.A., Orlov, L.K.
Format: Article
Language:English
Subjects:
birefringence
GaAs/AlGaAs
Ge/GeSi
hot electrons
light absorption
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Summary:New electro-optical phenomena in quantum-well structures, i.e. modulation of the light absorption and birefringence due to carrier heating in a strong electric field, have been investigated. The effects have revealed different features in the three types of structures under investigation, namely: (1) well-dopedn-type GaAs/AlGaAs multiple quantum wells, (2) barrier-dopedn-type GaAs/AlGaAs superlattices and (3) barrier-dopedp-type Ge/GeSi multiple quantum wells. Possible mechanisms of the phenomena have been discussed.
ISSN:0749-6036
1096-3677
DOI:10.1006/spmi.1996.0307