Luminescence of excitons in slightly asymmetric double quantum wells |
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| Authors: | A V Akimov E S Moskalenko A L Zhmodikov D A Mazurenko A A Kaplyanskii L J Challis T S Cheng C T Foxon |
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| Institution: | (1) A. F. Ioffe Physical-Technical Institute, Russian Academy of Sciences, 194021 St. Petersburg, Russia;(2) Physics Department, Nottingham University, University Park, NG7 2RD Nottingham, UK |
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| Abstract: | We report the first studies of exciton luminescence spectra from asymmetric double quantum wells (DQWs) of very similar width.
The DQWs were of GaAs/AlGaAs and the differences in widths of the coupled wells were one or two monolayers. The coupled direct
and indirect exciton states anticross with a resonance splitting of 1.33 meV. An additional luminescence line appearing at
low temperatures is identified as a localized indirect exciton.
Fiz. Tverd. Tela (St. Petersburg) 39, 735–739 (April 1997) |
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