• DocumentCode
    1065487
  • Title

    Mid-infrared transmission enhancement through sub-wavelength metal hole array using impedance-matching dielectric layer

  • Author

    Lee, S.C. ; Plis, E. ; Krishna, S. ; Brueck, S.R.J.

  • Author_Institution
    Dept. of Electr. & Comput. Eng., Univ. of New Mexico, Albuquerque, NM
  • Volume
    45
  • Issue
    12
  • fYear
    2009
  • Firstpage
    643
  • Lastpage
    645
  • Abstract
    The mid-infrared transmission through a 3.7 mum period, two-dimensional sub-wavelength Au metallic hole array integrated on a GaSb/InAs strained layer superlattice nBn photodetector is measured. The surface plasmon-polariton excitation on the Au film induces a peak transmission in the 200 K detector response at 4.2 mum. This transmission is enhanced threefold by the insertion of a SiNx layer between the Au film and the substrate for impedance matching analogous to antireflection coating.
  • Keywords
    dielectric materials; gallium compounds; gold; impedance matching; indium compounds; infrared detectors; photodetectors; plasmonics; silicon compounds; surface plasmons; Au; GaSb-InAs; SiNx; antireflection coating; impedance matching dielectric layer; metallic hole array; midinfrared transmission enhancement; photodetector; strained layer superlattice; subwavelength metal hole array; surface plasmon polariton excitation;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el.2009.0221
  • Filename
    5069788
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1065487