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Coulomb Memory Signatures in the Excitonic Optical Stark Effect
Journal article   Peer reviewed

Coulomb Memory Signatures in the Excitonic Optical Stark Effect

C Sieh, T Meier, F Jahnke, A Knorr, S. W Koch, P Brick, M Hübner, C Ell, J Prineas, G Khitrova, …
Physical review letters, Vol.82(15), pp.3112-3115
04/1999
DOI: 10.1103/PhysRevLett.82.3112

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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.

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