Strong coupling of heavy- and light-hole excitons induced by many-body correlations

T. Meier, Stephan W Koch, Mark Phillips, Hailin Wang

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

The differential absorption of a GaAs single quantum well is studied for resonant pumping at either the heavy- or light-hole exciton resonances using different polarization configurations. For all excitation conditions the observed spectra show bleaching of both excitons, revealing strong coupling between the heavy- and light-hole excitons. Microscopic calculations which include four-particle correlations representing the various two-exciton states qualitatively reproduce the experimental findings. A mixed heavy-hole-light-hole biexciton is also clearly identified as an induced resonance in a GaAs system.

Original languageEnglish (US)
Pages (from-to)12605-12608
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume62
Issue number19
DOIs
StatePublished - Nov 15 2000
Externally publishedYes

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Excitons
excitons
bleaching
Bleaching
Semiconductor quantum wells
pumping
quantum wells
Polarization
LDS 751
polarization
configurations
excitation
gallium arsenide

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Strong coupling of heavy- and light-hole excitons induced by many-body correlations. / Meier, T.; Koch, Stephan W; Phillips, Mark; Wang, Hailin.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 62, No. 19, 15.11.2000, p. 12605-12608.

Research output: Contribution to journalArticle

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AB - The differential absorption of a GaAs single quantum well is studied for resonant pumping at either the heavy- or light-hole exciton resonances using different polarization configurations. For all excitation conditions the observed spectra show bleaching of both excitons, revealing strong coupling between the heavy- and light-hole excitons. Microscopic calculations which include four-particle correlations representing the various two-exciton states qualitatively reproduce the experimental findings. A mixed heavy-hole-light-hole biexciton is also clearly identified as an induced resonance in a GaAs system.

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