High performance 4.7 THz GaAs quantum cascade lasers based on four quantum wells

GaAs/AlGaAs quantum cascade lasers based on four quantum well structures operating at 4.7 THz are reported. A large current density dynamic range is observed, leading to a maximum operation temperature of 150 K for the double metal waveguide device and a high peak output power more than 200 mW for t...

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Bibliographic Details

Published in:	New Journal of Physics
Main Authors:	Keita Ohtani, Dana Turčinková, Christopher Bonzon, Ileana-Cristina Benea-Chelmus, Mattias Beck, Jérôme Faist, Matthias Justen, Urs U Graf, Marc Mertens, Jürgen Stutzki
Format:	Article
Language:	English
Published:	IOP Publishing 2016-01-01
Subjects:	quantum cascade laser THz GaAs/AlGaAs
Online Access:	https://doi.org/10.1088/1367-2630/18/12/123004