All-plasmonic modulation via stimulated emission of copropagating surface plasmon polaritons on a substrate with gain

Alexey V. Krasavin, Thanh Phong Vo, Wayne Dickson, Pádraig M. Bolger, Anatoly V. Zayats

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    72 Citations (Scopus)

    Abstract

    We experimentally demonstrate suppressed absorption and stimulated emission of surface plasmon polaritons (SPP) leading to all-plasmonic modulation of an SPP signal propagating at the interface between a metal and a gain medium; these observations are supported by the developed theory. The use of copropagating signal and control waves can provide more than 10 times more efficient SPP stimulated emission compared to out-of-plane pumping and opens up the possibility to realize integratable plasmonic components for active nanophotonic circuitry.

    Original languageEnglish
    Pages (from-to)2231-2235
    Number of pages5
    JournalNano Letters
    Volume11
    Issue number6
    DOIs
    Publication statusPublished - 8 Jun 2011

    Keywords

    • plasmonic waveguides
    • Plasmonics
    • surface plasmon polariton amplification

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