Extraction of many-body configurations from nonlinear absorption in semiconductor quantum wells

Abstract

Detailed electronic many-body configurations are extracted from quantitatively measured timeresolved 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 co-circular pump-probe conditions and is attributed to the transfer of pump-induced coherences to the probe.

References in corpus (1)

• Exciton-Population Inversion and Terahertz Gain in Resonantly Excited Semiconductors

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