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

Research output: Contribution to journalArticlepeer-review

70 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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