Enhancement of spontaneous recombination rate in a quantum well by resonant surface plasmon coupling

Arup Neogi, Chang Won Lee, Henry O. Everitt, Takamasa Kuroda, Atsushi Tackeuchi

    Research output: Contribution to journalArticle

    328 Citations (Scopus)

    Abstract

    Using time-resolved photoluminescence measurements, the recombination rate in an (formula presented) quantum well (QW) is shown to be greatly enhanced when spontaneous emission is resonantly coupled to a silver surface plasmon. The rate of enhanced spontaneous emission into the surface plasmon was as much as 92 times faster than QW spontaneous emission into free space. A calculation, based on Fermi’s golden rule, reveals that the enhancement is very sensitive to silver thickness and indicates even greater enhancements are possible for QW’s placed closer to the surface metal coating.

    Original languageEnglish
    Pages (from-to)1-4
    Number of pages4
    JournalPhysical Review B - Condensed Matter and Materials Physics
    Volume66
    Issue number15
    DOIs
    Publication statusPublished - 2002 Jan 1

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics

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