Nonlinear plasmonic directional couplers

Joś R. Salgueiro, Yuri S. Kivshar

    Research output: Contribution to journalArticlepeer-review

    59 Citations (Scopus)


    A study on the nonlinear modes of plasmonic directional couplers created by two nonlinear dielectric slot waveguides with metallic claddings is presented. The calculated power diagram shows substantial differences from the case of nonlinear dielectric couplers. The power-dependent switching and the effect of losses on the coupler performance are studied using finite-difference time-domain numerical simulations.

    Original languageEnglish
    Article number081106
    JournalApplied Physics Letters
    Issue number8
    Publication statusPublished - 23 Aug 2010


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