State of the art of InP and GaAs quantum cascade lasers

  • G. Scamarcio
  • , V. Spagnolo
  • , M. Troccoli
  • , Z. Zanolli
  • , F. Rizzi
  • , M. Vitiello
  • , D. Marano
  • , A. Sabato
  • , I. M. Catalano
  • , M. Sibilano
  • , P. Calabrese

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

The key physical phenomena associated with long-wavelength infrared emission and laser action in quantum cascade lasers based on InP/GaInAs/AlInAs and GaAs/AlGaAs heterostructures are reviewed. The effect of different tunnel injection schemes on the hot-electron energy distributions is compared. High-power superlattice lasers with improved high-energy injection schemes are described. The local temperature distribution, the thermal resistance and the hot-phonon effects are monitored in operating devices by micro-probe Raman and luminescence measurements.

Original languageEnglish
Pages (from-to)731-734
Number of pages4
JournalConference Proceedings-International Conference on Indium Phosphide and Related Materials
DOIs
Publication statusPublished - 2002
Externally publishedYes

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