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Conferences > CLEO_Europe > 2019 > cc_p > cc_p_6
  • 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference
  • OSA Technical Digest (Optica Publishing Group, 2019),
  • paper cc_p_6

Dual-lasing Channel of a High-Temperature Terahertz Quantum Cascade Laser

Martin A. Kainz, Sebastian Schönhuber, Benedikt Limbacher, Aaron M. Andrews, Hermann Detz, Gottfried Strasser, and Karl Unterrainer

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Abstract

Terahertz (THz) quantum cascade lasers (QCLs) are powerful coherent light sources covering the frequency range from 1.2 to 5.4 THz, but still suffer from operation temperatures below 200 K [1]. Beside the standard material system GaAs/AlGaAs novel material systems with lower effective electron masses were investigated to improve the operation temperature of THz QCLs. These materials include InGaAs and InAs based systems [2-4] which benefit from a higher optical gain but suffer from molecular beam epitaxy growth issues due to their very thin barrier layers.

© 2019 IEEE

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