Two-well quantum cascade laser optimization by non-equilibrium Green's function modelling

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Abstract

We present a two-quantum well THz intersubband laser operating up to 192 K. The structure has been optimized using non-equilibrium Green's function model. The result of this optimization was confirmed experimentally by growing, processing, and measuring a number of proposed designs. At high temperature (T > 200 K), the simulations indicate that lasing fails due to a combination of electron-electron scattering, thermal backfilling, and, most importantly, re-absorption coming from broadened states.

Detaljer

Författare
  • M. Franckié
  • L. Bosco
  • M. Beck
  • C. Bonzon
  • E. Mavrona
  • G. Scalari
  • A. Wacker
  • J. Faist
Enheter & grupper
Externa organisationer
  • ETH Zürich
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Atom- och molekylfysik och optik
Originalspråkengelska
Artikelnummer021104
TidskriftApplied Physics Letters
Volym112
Utgåva nummer2
StatusPublished - 2018 jan 8
PublikationskategoriForskning
Peer review utfördJa

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