Coherent manipulation of A and B excitons in GaN

T. Ishiguro, Y. Toda, S. Adachi, K. Hazu, Takayuki Sota, S. F. Chichibu

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    An optical coherent manipulation of excitonic polarizations in hexagonal bulk GaN is achieved by means of an interferometric technique combined with spectrally-resolved degenerate four-wave-mixing (FWM). Initial phase of the FWM quantum beats between A and B excitonic polarizations are arbitrarily controlled, in which simultaneous increase (decrease) of the beats in both polarizations are observed. In addition, 80% selective amplification and 40% suppression of one of the excitonic polarizations are realized.

    Original languageEnglish
    Pages (from-to)2776-2779
    Number of pages4
    JournalPhysica Status Solidi (C) Current Topics in Solid State Physics
    Issue number7
    Publication statusPublished - 2007


    ASJC Scopus subject areas

    • Condensed Matter Physics

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