Electro-optical probing of envelope wavefunctions in GaAs/AlGaAs parabolic quantum well structures |
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| Authors: | W. Geiß elbrecht, U. Sahr, A. Masten, O. Gr bner, U. Klü tz, M. Forkel, G. H. D hler, K. Campman,A. C. Gossard |
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| Affiliation: | W. Geißelbrecht, U. Sahr, A. Masten, O. Gräbner, U. Klütz, M. Forkel, G. H. Döhler, K. Campman,A. C. Gossard, |
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| Abstract: | We report on a systematic experimental and theoretical study of the interband electroabsorption in GaAs/AlGaAs parabolic quantum well structures. Investigating a sample with an appropriately designed well width, we are able to observe a complex interplay of various electro-optical effects. The obtained results can be interpreted in terms of probing the electric-field dependent overlaps between the harmonic oscillator type envelope wavefunctions of electrons and holes. |
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| Keywords: | Parabolic quantum wells Digital alloy superlattices Electroabsorption Electro-optical effects |
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