Excitation induced shift and broadening of the exciton resonance

S. Wachter, M. Maute, H. Kalt, I. Galbraith, C. Sieh, T. Meier, S. W. Koch

Research output: Contribution to journalArticle

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Abstract

The influence of coherent photoexcited excitons on the absorption spectra and the Four Wave Mixing response of ZnSe/ZnMgSSe quantum wells is investigated for various polarization configurations. For purely resonant excitation at the heavy-hole-exciton a blue shift and an increasing homogeneous line width of the exciton absorption peak is found. The clear and stable blue shift shows a linear dependence on excitation fluence both in experiment and theory with different slopes for the different pump and probe polarization configurations. The equivalence of pump and probe, and Four Wave Mixing results is shown experimentally.

Original languageEnglish (US)
Pages (from-to)309-313
Number of pages5
JournalPhysica B: Condensed Matter
Volume314
Issue number1-4
DOIs
StatePublished - Mar 1 2002

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Keywords

  • Coherent exciton interaction
  • Four Wave Mixing
  • Polarization
  • Pump and probe

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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