Spectroscopies of exciton and biexciton in InGaAs quantum disk

Hidehiko Kamada, Hiroaki Ando, Toshihide Takagahara, Jiro Temmyo, Toshiaki Tamamura

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)


Exciton in isolated InxGa1-xAs quantum disk was studied by probing single-dot photoluminescence. Each of the excitonic emission was found to be excited via a number of sharp-excited state resonances, thereby the discrete density of state and long-lived phase coherence of the states were proven. A significant contribution of the biexciton excitation was found to enable two-photon absorption, making optical excitation process complex. It leads to a dynamic quantum mechanical interference in the excitation via exciton/biexciton states.

Original languageEnglish
Pages (from-to)46-50
Number of pages5
JournalJournal of Luminescence
Publication statusPublished - 2000 May
Externally publishedYes
EventInternational Conference on Luminescence and Optical Spectroscopy of Condensed Matter (ICL'99) - Osaka, Jpn
Duration: 1999 Aug 231999 Aug 27

ASJC Scopus subject areas

  • Biophysics
  • Biochemistry
  • Chemistry(all)
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics


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