Coulomb Memory Signatures in the Excitonic Optical Stark Effect
- 12 April 1999
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 82 (15), 3112-3115
- https://doi.org/10.1103/PhysRevLett.82.3112
Abstract
Differential absorption spectra of high-quality InGaAs quantum wells are presented for various pump detunings and polarization configurations. For low intensity pump pulses tuned well below the exciton a redshift is observed for opposite circularly polarized probe pulses. Microscopic calculations show that this redshift originates from memory effects in the Coulomb-induced excitonic correlations.Keywords
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