Broadband light coupling to dielectric slot waveguides with tapered plasmonic nanoantennas

Ivan Maksymov, Y.S. Kivshar

    Research output: Contribution to journalArticle

    7 Citations (Scopus)

    Abstract

    We propose and theoretically verify an efficient mechanism of broadband coupling between incident light and on-chip dielectric slot waveguide by employing a tapered plasmonic nanoantenna. The nanoantenna receives free space radiation and couples it to a dielectric slot waveguide with the efficiency of up to 20% in a broad spectral range, having a small footprint as compared with the currently used narrowband dielectric grating couplers. We argue that the frequency selective properties of such nanoantennas also allow for using them as ultrasmall on-chip multiplexer/demultiplexer devices. © 2013 Optical Society of America.
    Original languageEnglish
    Pages (from-to)4853-4856
    JournalOptics Letters
    Volume38
    Issue number22
    DOIs
    Publication statusPublished - 2013

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