Resonance broadening of the light-hole exciton in GaAs/As quantum wells
- 15 February 1988
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 37 (5) , 2725-2728
- https://doi.org/10.1103/physrevb.37.2725
Abstract
As a result of the mixing of the heavy- and light-hole subband states in undoped quantum wells, electron–heavy-hole pairs are coupled with electron–light-hole pairs. Consequently, when the light-hole exciton peak lies in the electron-heavy-hole continuum, it is broadened, an effect analogous to a Fano resonance. This phenomenon is examined both theoretically and experimentally, and good quantitative agreement between the two is found.Keywords
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