• DocumentCode
    750309
  • Title

    Low threshold THz QC lasers with thin core regions

  • Author

    Chassagneux, Y. ; Palomo, J. ; Colombelli, R. ; Barbieri, S. ; Dhillon, S. ; Sirtori, C. ; Beere, H. ; Alton, J. ; Ritchie, D.

  • Author_Institution
    Inst. d´´Electronique Fondamentale, Univ. Paris-Sud, Orsay
  • Volume
    43
  • Issue
    5
  • fYear
    2007
  • Firstpage
    41
  • Lastpage
    42
  • Abstract
    It is demonstrated that the active region thickness of THz quantum cascade lasers can be reduced by a factor of 2 without effects on the threshold current density and maximum operating temperature of the laser. Pulsed and continuous-wave operation, with a low threshold Jth= 71 A/cm2, are obtained for a 5.86 mum-thick THz QC laser. The emission is peaked at lambdasime115 mum and the waveguide resonator is based on a metal-metal geometry
  • Keywords
    optical resonators; optical waveguides; quantum cascade lasers; 5.86 micron; THz quantum cascade lasers; continuous-wave operation; low threshold laser; metal-metal geometry; pulsed operation; terahertz laser; thin care regions; waveguide resonator;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:20073842
  • Filename
    4137476
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=750309