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Low-threshold terahertz quantum-cascade lasers with one-well injector operating up to 174 K

Author(s)
Kumar, Sushil; Hu, Qing; Reno, John L.
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Abstract
We report operation of v ~ 2.7 THz quantum-cascade lasers (QCLs) up to 174 K. A new three-well active region, one-well injector scheme is utilized to lower the operating current densities. While the temperature performance of this design is comparable to that of the best published THz QCLs, lower operating current densities make this design a viable alternative.
Date issued
2009-08
URI
http://hdl.handle.net/1721.1/59481
Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science; Massachusetts Institute of Technology. Research Laboratory of Electronics
Journal
Conference on Lasers and Electro-Optics, 2009 and 2009 Conference on Quantum electronics and Laser Science Conference. CLEO/QELS 2009.
Publisher
Institute of Electrical and Electronics Engineers
Citation
Kumar, S., Qing Hu, and J.L. Reno. “Low-threshold Terahertz quantum-cascade lasers with one-well injector operating up to 174 K.” Lasers and Electro-Optics, 2009 and 2009 Conference on Quantum electronics and Laser Science Conference. CLEO/QELS 2009. Conference on. 2009. 1-2. ©2009 Institute of Electrical and Electronics Engineers.
Version: Final published version
Other identifiers
INSPEC Accession Number: 10842580
ISBN
978-1-55752-869-8
Keywords
(140.3070) Infrared and far-infrared lasers, quantum cascade, (140.5965) Semiconductor lasers

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