• DocumentCode
    2326695
  • Title

    Hot-electron cooling in THz quantum cascade lasers

  • Author

    Scamarcio, Gaetano ; Vitiello, Miriam S. ; Faist, Jerome ; Scalari, Giacomo ; Walther, Christoph ; Beere, Harvey E. ; Ritchie, David A.

  • Author_Institution
    Dipt. Interateneo di Fis. M. Merlin, Univ. degli Studi di Bari, Bari, Italy
  • fYear
    2009
  • fDate
    21-25 Sept. 2009
  • Firstpage
    1
  • Lastpage
    1
  • Abstract
    Experimental evidence of a physical phenomenon characteristic of semiconductor lasers, i.e. the cooling of the electrons above the threshold for stimulated emission, is reported. By using a terahertz quantum-cascade laser as a prototype structure we show that this effect is directly related with the internal quantum efficiency (etaint).
  • Keywords
    hot carriers; laser beams; quantum cascade lasers; stimulated emission; submillimetre wave lasers; THz quantum cascade lasers; hot-electron cooling; internal quantum efficiency; physical phenomenon characteristics; semiconductor lasers; stimulated emission threshold; Electron emission; Electronics cooling; Laser modes; Laser theory; Prototypes; Quantum cascade lasers; Quantum mechanics; Semiconductor lasers; Stimulated emission; Temperature;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Infrared, Millimeter, and Terahertz Waves, 2009. IRMMW-THz 2009. 34th International Conference on
  • Conference_Location
    Busan
  • Print_ISBN
    978-1-4244-5416-7
  • Electronic_ISBN
    978-1-4244-5417-4
  • Type

    conf

  • DOI
    10.1109/ICIMW.2009.5325630
  • Filename
    5325630
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2326695