Many-body effects in the luminescence of highly excited indirect superlattices

G. R. Olbright, J. Klem, A. Owyoung, T. M. Brennan, R. Binder, S. W. Koch

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


Experimental and theoretical investigations of the optical-excitation-dependent spatially indirect photoluminescence of GaAs/AlAs type II superlattices are reported. Simultaneous blue and red shifts of the indirect photoluminescence peaks are observed and analyzed, using many-body theory. The relevant microscopic mechanisms are exchange and correlation effects in the excited electron and hole plasmas as well as energy renormalizations due to the optically induced space-charge potential, the latter being the dominant effect. Comparison of theory and experiment allows us to extract the individual renormalization effects in the electron and hole plasmas.

Original languageEnglish (US)
Pages (from-to)1473-1480
Number of pages8
JournalJournal of the Optical Society of America B: Optical Physics
Issue number8
StatePublished - Aug 1990

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Atomic and Molecular Physics, and Optics


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