Experimental investigation of the lattice and electronic temperatures in Ga0.47In0.53As/Al0.62Ga0.38As1-xSbx quantum-cascade lasers (Articolo in rivista)

Type
Label
  • Experimental investigation of the lattice and electronic temperatures in Ga0.47In0.53As/Al0.62Ga0.38As1-xSbx quantum-cascade lasers (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1063/1.2717018 (literal)
Alternative label
  • Vitiello, MS; Scamarcio, G; Spagnolo, V; Lops, A; Yang, QK; Manz, C; Wagner, J (2007)
    Experimental investigation of the lattice and electronic temperatures in Ga0.47In0.53As/Al0.62Ga0.38As1-xSbx quantum-cascade lasers
    in Applied physics letters
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Vitiello, MS; Scamarcio, G; Spagnolo, V; Lops, A; Yang, QK; Manz, C; Wagner, J (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 90 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Univ Bari, Dipartimento Interateneo Fis M Merlin, CNR, INFM Reg Lab LIT, I-70126 Bari, Italy; Politecn Bari, Dipartimento Interateneo Fis M Merlin, CNR, INFM Reg Lab LIT, I-70126 Bari, Italy; Fraunhofer Inst Appl Solid State Phys, D-79108 Freiburg, Germany (literal)
Titolo
  • Experimental investigation of the lattice and electronic temperatures in Ga0.47In0.53As/Al0.62Ga0.38As1-xSbx quantum-cascade lasers (literal)
Abstract
  • The authors extracted the thermal resistance (R-L=9.6 K/W) and the electrical power dependence of the electronic temperature (R-e=12.5 K/W) of Ga0.47In0.53As/Al0.62Ga0.38As1-xSbx quantum-cascade lasers (QCLs) operating at 4.9 mu m, in the lattice temperature range of 60-90 K. The low electron-lattice coupling constant alpha=10.4 K cm(2)/kA can be related to the beneficial effect of the high conduction band offset, peculiar to the GaInAs/AlGaAsSb material system, on the electron leakage. The authors found an active region cross-plane thermal conductivity value k(perpendicular to)=1.8 +/- 0.1 W/(K m), which is approximately three times larger than that measured in QCLs with GaInAs/AlInAs heterostructures. (c) 2007 American Institute of Physics. (literal)
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