• DocumentCode
    1502948
  • Title

    Broadside Excitation of Long-Range Surface Plasmons via Grating Coupling

  • Author

    Chen, Chengkun ; Berini, Pierre

  • Author_Institution
    Sch. of Inf. Technol. & Eng., Univ. of Ottawa, Ottawa, ON, Canada
  • Volume
    21
  • Issue
    24
  • fYear
    2009
  • Firstpage
    1831
  • Lastpage
    1833
  • Abstract
    A metal grating for coupling a Gaussian beam incident from broadside to the long-range surface plasmon-polariton (LRSPP) propagating along a membrane-supported Au slab is proposed and modelled by the finite-difference time-domain method. A short grating design consisting of a small number of Au bumps yields a 19.5% coupling efficiency at ??0 = 1310 nm into the LRSPP propagating in a single direction when the grating is excited off-center near one of its edges. The grating coupler is easy to fabricate and it facilitates experimental alignments.
  • Keywords
    diffraction gratings; finite difference time-domain analysis; optical couplers; polaritons; surface plasmons; Gaussian beam; broadside excitation; finite difference time domain method; gold slab; grating coupler; long range surface plasmon polariton; metal grating; Coupler; grating; long-range; membrane; plasmon; polariton; surface;
  • fLanguage
    English
  • Journal_Title
    Photonics Technology Letters, IEEE
  • Publisher
    ieee
  • ISSN
    1041-1135
  • Type

    jour

  • DOI
    10.1109/LPT.2009.2034130
  • Filename
    5290076
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1502948