Temperature dependence of thermal conductivity and boundary resistance in THz quantum cascade lasers (Articolo in rivista)

Type
Label
  • Temperature dependence of thermal conductivity and boundary resistance in THz quantum cascade lasers (Articolo in rivista) (literal)
Anno
  • 2008-01-01T00:00:00+01:00 (literal)
Alternative label
  • Vitiello, MS; Scamarcio, G; Spagnolo, V (2008)
    Temperature dependence of thermal conductivity and boundary resistance in THz quantum cascade lasers
    in IEEE journal of selected topics in quantum electronics
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Vitiello, MS; Scamarcio, G; Spagnolo, V (literal)
Pagina inizio
  • 431 (literal)
Pagina fine
  • 435 (literal)
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  • 14 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • \"[Vitiello, Miriam Serena; Scamarcio, Gaetano; Spagnolo, Vincenzo] CNR, INFM, Reg Lab LIT3, I-70126 Bari, Italy; [Vitiello, Miriam Serena; Scamarcio, Gaetano] Univ Bari, Dipartimento Interateneo Fis M Merlin, I-70126 Bari, Italy; [Spagnolo, Vincenzo] Politecn Bari, Dipartimento Interateneo Fis M Merlin, I-70126 Bari, Italy (literal)
Titolo
  • Temperature dependence of thermal conductivity and boundary resistance in THz quantum cascade lasers (literal)
Abstract
  • We measured the lattice temperature (T-L) distribution, the cross-plane thermal conductivity (k(perpendicular to)), and the thermal boundary resistance (TBR) of the GaAs/Al0.15Ga0.85As quantum cascade lasers (QCLs) operating at 2.83 THz in the heat sink temperature range 45-300 K. This information was extracted from the analysis of microprobe hand-to-hand photoluminescence in QCLs operating in continuous wave. Both k(perpendicular to) and TBR decrease monotonically at increasing temperature, the main influence on k(perpendicular to) arising from the high density of interfaces. (literal)
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