Influence of exciton-exciton interaction on quantum beats

Takao Aoki, Georg Mohs, Makoto Kuwata Gonokami, A. A. Yamaguchi

Research output: Contribution to journalArticle

65 Citations (Scopus)

Abstract

Spectrally resolved four-wave mixing measurements in wurtzite GaN show a dependence of the quantum beats‘ phase on incident polarizations. We observe different phases at the A-exciton and the B-exciton resonances when exciting with circular polarized light. The observed phase difference indicates that exciton-exciton interaction plays a major role in the quantum beat process. The developed analysis allows us to conclude that the spins of the electrons rather than the holes give the major contribution to the exciton-exciton interaction in GaN.

Original languageEnglish
Pages (from-to)3108-3111
Number of pages4
JournalPhysical Review Letters
Volume82
Issue number15
DOIs
Publication statusPublished - 1999 Jan 1

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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