Journal article
Theory of coherent effects in semiconductors
Journal of luminescence, Vol.83, pp.1-6
1999
DOI: 10.1016/S0022-2313(99)00065-4
Abstract
A microscopic theory is applied to discuss coherent excitation effects in semiconductors. The theory is evaluated to analyze ultrafast absorption changes around the exciton resonance in semiconductor quantum-well structures where the relative strength of the different many-body contributions can be manipulated by proper selection of pump and probe polarizations. For two-band systems and oppositely circular polarization it is shown that Coulombic correlation dynamics dominates the optical response. As a consequence, the optical Stark effect in this configuration corresponds to a red shift of the exciton resonance in striking contrast to the usual atomic-like blue shift. The predictions are confirmed by experiments using high-quality InGaAs quantum-well systems.
Details
- Title: Subtitle
- Theory of coherent effects in semiconductors
- Creators
- S.W Koch - Philipps University of MarburgC Sieh - Philipps University of MarburgT Meier - Philipps University of MarburgF Jahnke - Philipps University of MarburgA Knorr - Philipps University of MarburgP Brick - University of ArizonaM Hübner - University of ArizonaC Ell - University of ArizonaJ Prineas - University of ArizonaG Khitrova - University of ArizonaH.M Gibbs - University of Arizona
- Resource Type
- Journal article
- Publication Details
- Journal of luminescence, Vol.83, pp.1-6
- DOI
- 10.1016/S0022-2313(99)00065-4
- ISSN
- 0022-2313
- eISSN
- 1872-7883
- Publisher
- Elsevier B.V
- Language
- English
- Date published
- 1999
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984199753902771
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