Investigation of light coupling between a semiconductor nanowire and a plasmonic waveguide

You Shin No, Jae Hyuck Choi, Min Soo Hwang, Hong Gyu Park

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    1 Citation (Scopus)

    Abstract

    We report a theoretical investigation of light coupling between a semiconductor nanowire (NW) and a plasmonic waveguide. The light emitted from the NW is coupled to the waveguide and excites a symmetric plasmonic waveguide mode propagating along the top surface of the waveguide. Using numerical simulations, coupling efficiencies were calculated for various coupling structures consisting of tapered/non-tapered NWs and single-strip/double-strip gold waveguides. The highest coupling efficiency of >2.8% was obtained between a tapered NW and a double-strip plasmonic waveguide with a height of 200 nm. This study offers a new opportunity for the efficient integration of nanoscale light sources with plasmonic waveguides and enables further miniaturization of ultracompact photonic integrated circuits.

    Original languageEnglish
    Pages (from-to)1851-1854
    Number of pages4
    JournalJournal of the Korean Physical Society
    Volume63
    Issue number10
    DOIs
    Publication statusPublished - 2013

    Bibliographical note

    Funding Information:
    This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP, No. 2009-0081565). Y.-S. N. acknowledges the support of this work by the TJ Park Science Fellowship.

    Keywords

    • Coupling efficiency
    • Nanowires
    • Plasmonic waveguides
    • Surface plasmon polaritons

    ASJC Scopus subject areas

    • General Physics and Astronomy

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