Decoherence suppression of excitons in GaSe using three successive femtosecond optical pulses

T. Kishimoto, A. Hasegawa, Y. Mitsumori, J. Ishi-Hayase, M. Sasaki, F. Minami

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

We report the first decoherence control of excitons which was performed on the model semiconductor GaSe by using successive three femtosecond pulses, i.e., the six-wave mixing configuration. The second pulse acts as a π pulse which reverses the time evolution of non-Markovian dynamics. By changing the pulse interval conditions, we confirmed the suppression of exciton decoherence by π pulse irradiation. From the analysis of the decoherence, it is also found that the six-wave mixing technique can successfully be applied to determine the reservoir parameters.

Original languageEnglish
Article number073202
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume74
Issue number7
DOIs
Publication statusPublished - 2006 Sep 6

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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