Many-body treatment of correlation effects in pump-probe-spectra of semiconductor quantum wells

F. Jahnke, C. Sieh, T. Meier, A. Knorr, S. W. Koch, P. Brick, M. Hübner, C. Ell, J. Prineas, G. Khitrova, H. M. Gibbs

Research output: Contribution to journalConference article

Abstract

Semiconductor quantum wells were excited by pump-probing to demonstrate the influence of Coulomb correlations and memory effects on excitonic optical nonlinearities. Expectation values with two carrier operators gets coupled to expectation values with four carrier operators due to Coulomb interactions under nonlinear conditions. Linear response of the semiconductor was described in terms of a Schrodinger equation for the exciton relative motion. The differential probe absorption spectra for polarized pump and probe pulses was analysed. The signal observed was determined to be due to correlation effects reduced by Markov approximations.

Original languageEnglish (US)
Pages (from-to)211-213
Number of pages3
JournalMolecular Crystals and Liquid Crystals Science and Technology Section B: Nonlinear Optics
Volume24
Issue number3
StatePublished - Dec 1 2000
EventFirst Bi-National German-Israeli Workshop on Ultrafast Optical Technologies - Tel Aviv, Israel
Duration: Oct 12 1999Oct 13 1999

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ASJC Scopus subject areas

  • Control and Systems Engineering
  • Condensed Matter Physics

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