Extraction of Many-Body Configurations from Nonlinear Absorption in Semiconductor Quantum Wells
Open Access
- 15 June 2010
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 104 (24), 247401
- https://doi.org/10.1103/physrevlett.104.247401
Abstract
Detailed electronic many-body configurations are extracted from quantitatively measured time-resolved nonlinear absorption spectra of resonantly excited GaAs quantum wells. The microscopic theory assigns the observed spectral changes to a unique mixture of electron-hole plasma, exciton, and polarization effects. Strong transient gain is observed only under cocircular pump-probe conditions and is attributed to the transfer of pump-induced coherences to the probe.Keywords
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