Investigation of disordered semiconductor quantum wells by coherent excitation spectroscopy

A. Euteneuer, E. Finger, W. Stolz, T. Meier, P. Thomas, S. W. Koch, M. Hofmann, W. W. Rühle, R. Hey, K. H. Ploog

Research output: Contribution to journalConference article

Abstract

First, we study coupling of excitons in different quantum-well islands by coherent excitation spectroscopy and find that excitons in different islands are not coherently coupled. Second, we investigate exciton and biexciton binding energies in inhomogeneously broadened (GaIn)As/Ga(PAs) multi quantum wells. A strong increase of the 1s-2s-splitting with increasing exciton localization is found, whereas the biexciton binding energy shows a very weak decrease with increasing localizations.

Original languageEnglish (US)
Pages (from-to)183-188
Number of pages6
JournalPhysica Status Solidi (A) Applied Research
Volume178
Issue number1
DOIs
StatePublished - Mar 1 2000
EventOptics of Excitons in Confined Systems (OECS-6) - Ascona, Switz
Duration: Aug 30 1999Sep 2 1999

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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