Birefringence and absorption of infrared radiation in tunnel-coupled GaAs/AlGaAs quantum wells in a longitudinal electric field

Birefringence and absorption modulation under electron heating in a longitudinal electric field in the tunnel-coupled GaAs/AlGaAs quantum wells have been found and investigated in the spectral region corresponding to intersubband electron transitions. The observed phenomena are explained by electron...

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Bibliographic Details
Published in:Superlattices and microstructures 1999-01, Vol.25 (1-2), p.367-371
Main Authors: Vorobjev, L.E., Zerova, V.L., Titkov, I.E., Firsov, D.A., Shalygin, V.A., Tulupenko, V.N., Towe, E.
Format: Article
Language:English
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Summary:Birefringence and absorption modulation under electron heating in a longitudinal electric field in the tunnel-coupled GaAs/AlGaAs quantum wells have been found and investigated in the spectral region corresponding to intersubband electron transitions. The observed phenomena are explained by electron heating in electric field and electron transfer in real space. The equilibrium absorption spectra at different lattice temperatures are analyzed.
ISSN:0749-6036
1096-3677
DOI:10.1006/spmi.1998.0660