Optical rabi oscillations in a quantum dot ensemble

Mamiko Kujiraoka, Junko Ishi-Hayase, Kouichi Akahane, Naokatsu Yamamoto, Kazuhiro Ema, Masahide Sasaki

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


We have investigated Rabi oscillations of exciton polarization in a self-assembled InAs quantum dot ensemble. The four-wave mixing signals measured as a function of the average of the pulse area showed the large in-plane anisotropy and nonharmonic oscillations. The experimental results can be well reproduced by a two-level model calculation including three types of inhomogeneities without any fitting parameter. The large anisotropy can be well explained by the anisotropic dipole moments. We also find that the nonharmonic behaviors partly originate from the polarization interference.

Original languageEnglish
Article number092801
JournalApplied Physics Express
Issue number9
Publication statusPublished - 2010 Sept 1

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)


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