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

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

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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
Issue number10
Publication statusPublished - 2013 Dec 31



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

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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