Direct observation of optical excitation transfer based on resonant optical near-field interaction

Wataru Nomura, T. Yatsui, T. Kawazoe, M. Naruse, E. Runge, C. Lienau, M. Ohtsu

    研究成果: Contribution to journalArticle査読

    2 被引用数 (Scopus)

    抄録

    This article reports the direct observation of longdistance optical excitation transfer based on resonant optical near-field interactions in randomly distributed quantum dots (QDs). We fabricated optical excitation transfer paths based on randomly distributed QDs by using CdSe/ZnS core-shell QDs and succeeded for the first time in obtaining output signals resulting from a unidirectional optical excitation transfer length of 2.4 μm. Furthermore, we demonstrate that the optical excitation transfer occurs via the resonant excited levels of the QDs with a comparative experiment using nonresonant QDs. This excitation-transfer mechanism allows for intersecting, non-interacting nano-optical wires.

    本文言語英語
    ページ(範囲)257-262
    ページ数6
    ジャーナルApplied Physics B: Lasers and Optics
    107
    2
    DOI
    出版ステータス出版済み - 5 1 2012

    All Science Journal Classification (ASJC) codes

    • Physics and Astronomy (miscellaneous)
    • Physics and Astronomy(all)

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