• DocumentCode
    1931906
  • Title

    Strongly directional emission from AlGaAs/GaAs light emitting diodes

  • Author

    Kock, A. ; Gornik, E. ; Hauser, M. ; Beinstingl, W.

  • Author_Institution
    Walter Schottky Institut, TU Mÿnchen, 8046 Garching, Germany
  • fYear
    1990
  • fDate
    10-13 Sept. 1990
  • Firstpage
    409
  • Lastpage
    412
  • Abstract
    We show for the first time that strongly directional emission of defined polarization can be achieved from conventional AlGaAs/GaAs double heterostructure surface emitting LEDs via coupling to surface plasmons. By microstructuring the surface, we have fabricated LEDs with a beam divergence of less than 40 and a drastically increased quantum efficiency. We prove that surface plasmon excitation aid emission mechanism has the potential to overcome basic external quantum efficiency losses and to improve the performance of LEDs.
  • Keywords
    Fiber gratings; Gallium arsenide; Laser excitation; Light emitting diodes; Optical coupling; Optical polarization; Plasmons; Propagation losses; Surface emitting lasers; Surface waves;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Solid State Device Research Conference, 1990. ESSDERC '90. 20th European
  • Conference_Location
    Nottingham, England
  • Print_ISBN
    0750300655
  • Type

    conf

  • Filename
    5436331
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1931906