Microprobe photoluminescence assessment of the wall-plug efficiency in interband cascade lasers (Articolo in rivista)

Type
Label
  • Microprobe photoluminescence assessment of the wall-plug efficiency in interband cascade lasers (Articolo in rivista) (literal)
Anno
  • 2008-01-01T00:00:00+01:00 (literal)
Alternative label
  • Vitiello, MS; Scamarcio, G; Spagnolo, V; Bewley, WW; Kim, M; Kim, CS; Vurgaftman, I; Meyer, JR; Lops, A (2008)
    Microprobe photoluminescence assessment of the wall-plug efficiency in interband cascade lasers
    in Journal of applied physics
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Vitiello, MS; Scamarcio, G; Spagnolo, V; Bewley, WW; Kim, M; Kim, CS; Vurgaftman, I; Meyer, JR; Lops, A (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 104 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • \"[Vitiello, Miriam S.; Scamarcio, Gaetano; Spagnolo, Vincenzo; Lops, Antonia] Univ Bari, CNR INFM Reg Lab LIT3, I-70126 Bari, Italy; [Vitiello, Miriam S.; Scamarcio, Gaetano; Spagnolo, Vincenzo; Lops, Antonia] Univ Bari, Dipartimento Interateneo Fis M Merlin, I-70126 Bari, Italy; [Bewley, William W.; Kim, Mijin; Kim, Chul-Soo; Vurgaftman, Igor; Meyer, Jerry R.] USN, Res Lab, Washington, DC 20375 USA (literal)
Titolo
  • Microprobe photoluminescence assessment of the wall-plug efficiency in interband cascade lasers (literal)
Abstract
  • We employ a microprobe photoluminescence (PL) technique to determine the thermal resistance and wall-plug efficiency of narrow-ridge interband cascade lasers emitting at 3.8 mu m. Using two different semiconductor epilayers as integrated thermometers, the local lattice temperature is extracted from the PL spectra and the wall-plug efficiency (eta(w)) derived from the slope of the temperature increase versus electrical power. The maximum (eta(w)) at 78 K is found to be 8.1 +/- 0.5%, and a fit to the lattice temperature gradient implies cross-plane thermal conductivities of 4.5-6.5 W/m K for the short-period InAs/AlSb superlattice cladding and of approximate to 1.5-4 W/m K for the active region. (C) 2008 American Institute of Physics. (literal)
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