Subpicosecond excitonic electroabsorption in room-temperature quantum wells
- 31 March 1986
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 48 (13) , 864-866
- https://doi.org/10.1063/1.96693
Abstract
We investigate the dynamics of excitonic optical absorption in room-temperature GaAs quantum wells during the application of a rapidly changing electric field in the plane of the quantum well layers. We obtain electroabsorptive modulation with a response time constant of 330 fs, which is the fastest ever reported in a semiconductor.Keywords
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