Thermal modeling of terahertz quantum-cascade lasers: Comparison of optical waveguides (Articolo in rivista)

Type
Label
  • Thermal modeling of terahertz quantum-cascade lasers: Comparison of optical waveguides (Articolo in rivista) (literal)
Anno
  • 2008-01-01T00:00:00+01:00 (literal)
Alternative label
  • Evans, CA; Indjin, D; Ikonic, Z; Harrison, P; Vitiello, MS; Spagnolo, V; Scamarcio, G (2008)
    Thermal modeling of terahertz quantum-cascade lasers: Comparison of optical waveguides
    in IEEE journal of quantum electronics
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Evans, CA; Indjin, D; Ikonic, Z; Harrison, P; Vitiello, MS; Spagnolo, V; Scamarcio, G (literal)
Pagina inizio
  • 680 (literal)
Pagina fine
  • 685 (literal)
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  • 44 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • \"[Evans, Craig A.; Indjin, Dragan; Ikonic, Zoran; Harrison, Paul] Univ Leeds, Sch Elect & Elect Engn, Inst Microwaves & Photon, Leeds LS2 9JT, W Yorkshire, England; [Vitiello, Miriam Serena; Spagnolo, Vincenzo; Scamarcio, Gaetano] Univ Bari, 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
  • Thermal modeling of terahertz quantum-cascade lasers: Comparison of optical waveguides (literal)
Abstract
  • We compare a set of experimental lattice temperature profiles measured in a surface-emitting terahertz (THz) quantum-cascade laser (QCL) with the results of a 2-D anisotropic heat diffusion model. We evaluate the temperature dependence of the active of the cross-plane thermal conductivity (kappa(perpendicular to)) region which is known. to be strongly anisotropic due to its superlattice-like nature. Knowledge of (kappa(perpendicular to)) and its temperature dependence is crucial in order to improve the temperature performance of THz QCLs and this has been used to investigate the longitudinal lattice temperature distribution of the active region and to compare the thermal properties of metal-metal and semi-insulating surface-plasmon THz optical waveguides using a 3-D anisotropic heat diffusion model. (literal)
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