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Terahertz intersubband emission in strong magnetic fields

Stéphane Blaser, Michel Rochat, Mattias Beck, Daniel Hofstetter & Jérôme Faist

Résumé Electroluminescence in quantum-cascade structures based on vertical transitions is studied in a strong perpendicular magnetic field in the limit in which the cyclotron energy is larger than the intersubband transition energy. Cyclotron emission and a luminescence intensity enhancement up to a factor of 6 is observed in GaAs/AlGaAs and InGaAs/InAlAs vertical transition-based quantum-cascade structures. (C) 2002 American Institute of Physics.
   
Mots-clés QUANTUM-CASCADE STRUCTURE, WELLS, SUPPRESSION, TRANSITIONS, INTERWELL, INTRAWELL, SCATTERING, PLASMONS, LASERS
   
Citation Blaser, S., Rochat, M., Beck, M., Hofstetter, D., & Faist, J. (2002). Terahertz intersubband emission in strong magnetic fields. Applied Physics Letters, 81(1), 67-69.
   
Type Article de périodique (Anglais)
Date de publication 2002
Nom du périodique Applied Physics Letters
Volume 81
Numéro 1
Pages 67-69