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Developments of terahertz quantum cascade lasers in NICT

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4 Author(s)
Iwao Hosako ; National Institute of Information and Communications Technology, 4-2-1 Nukuikita Koganei, Tokyo 184-8795, JAPAN. ; Naruhiko Sekine ; Hiroaki Yasuda ; Kazuhiko Hirakawa

We fabricated terahertz quantum cascade lasers (THz-QCL) using a resonant LO phonon depopulation scheme, which were made of both GaAs/AlGaAs material system and GaSb/AlSb material system. The GaAs/AlGaAs THz-QCL has successfully demonstrated a high peak power (~ few tens of milliwatts) operation and a high operating temperature (~123K). We also report research activities of the THz-QCL in NICT.

Published in:

2006 Joint 31st International Conference on Infrared Millimeter Waves and 14th International Conference on Teraherz Electronics

Date of Conference:

18-22 Sept. 2006