Optical Stark effect on excitons in GaAs quantum wells
- 1 October 1986
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 11 (10), 609-611
- https://doi.org/10.1364/ol.11.000609
Abstract
We describe the first reported experimental observation of an extremely fast shift of the n = 1 exciton transition energy in GaAs quantum-well heterostructures. The shift is produced by optical pumping below the band gap and is not associated with a carrier or exciton population. We interpret the shift in terms of an optical Stark effect. We present a model for the Stark effect on the ground-state exciton in quantum wells and find good agreement between the predictions of the model and our experimental results.Keywords
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