Cw and femtosecond optical nonlinearities of type-II quantum wells

G. R. Olbright, W. S. Fu, A. Owyoung, J. F. Klem, R. Binder, I. Galbraith, S. W. Koch

Research output: Contribution to journalArticle

23 Scopus citations

Abstract

Femtosecond time-resolved and quasi-cw measurements of optical nonlinearities of type-II GaAs/AlAs quantum wells are reported. A pronounced blueshift of the heavy-hole exciton is observed, which develops on a 100-ps time scale after resonant interband excitation. The experimental observations are analyzed using many-body theory, explaining exciton blueshift and dynamical evolution in terms of electron-hole Coulomb enhancement, hole-phase-space filling, and hole-plasma cooling.

Original languageEnglish (US)
Pages (from-to)1358-1361
Number of pages4
JournalPhysical review letters
Volume66
Issue number10
DOIs
StatePublished - Jan 1 1991

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Cw and femtosecond optical nonlinearities of type-II quantum wells'. Together they form a unique fingerprint.

  • Cite this