S. Schönhuber, M. Kainz, B. Limbacher, M. Wenclawiak, A. Andrews, G. Strasser, J. Darmo, K. Unterrainer
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Abstract
The control of the output beam shape and direction of THz Quantum Cascade Lasers is presented. For the improvement of the operation temperature different barrier heights are investigated. As result a very efficient device is realized which requires only thermo-electric cooling and thus can be integrated into compact gas spectroscopy systems.
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