Nonlinear switching with a graphene coupler

Daria A. Smirnova*, Andrey V. Gorbach, Ivan V. Iorsh, Ilya V. Shadrivov, Yuri S. Kivshar

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    75 Citations (Scopus)


    We study nonlinear propagation of electromagnetic waves in two closely spaced graphene layers and demonstrate that this double-layer graphene waveguide can operate as an efficient nonlinear optical coupler for both continuous plasmons and for subwavelength spatial optical plasmon solitons. We analyze the nonlinearity-induced effects of light localization and symmetry breaking in such a graphene coupler, and predict that the interlayer power-dependent coupling provides a mechanism for optical beam control and manipulation at realistic input power levels.

    Original languageEnglish
    Article number045443
    JournalPhysical Review B - Condensed Matter and Materials Physics
    Issue number4
    Publication statusPublished - 31 Jul 2013


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