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, H. M. Gibbs

Research output: Contribution to journalArticlepeer-review

179 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)3112-3115
Number of pages4
JournalPhysical review letters
Issue number15
StatePublished - Jan 1 1999

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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