Exciton-exciton interaction through barrier layer

M. Hirasawa, T. Ishihara

研究成果: Article査読

1 被引用数 (Scopus)

抄録

We demonstrate that the radiative recombination of an exciton in a GaAs/AlGaAs quantum well (QW) is slowed down by the exciton-exciton scattering caused by the high-density excitons, which are injected into the exciton reservoir in the vicinity of the QW by an ultra-fast laser. Our experiment shows lifetime prolongation (up to 30% at a density of 1 × 1017/cm3 in the reservoir) and lifetime saturation of exciton in QW. The lifetime prolongation is explained by the classical dipole scattering between the excitons which disturbs the exciton superradiance. The saturation is explained by a theory which takes the momentum dependence of the scattering potential into account.

本文言語English
ページ(範囲)195-197
ページ数3
ジャーナルJournal of Luminescence
87
DOI
出版ステータスPublished - 2000 5月
外部発表はい

ASJC Scopus subject areas

  • 生物理学
  • 生化学
  • 化学 (全般)
  • 原子分子物理学および光学
  • 凝縮系物理学

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