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Conferences > CLEO > 2009 > CThH > CThH4
  • Conference on Lasers and Electro-Optics/International Quantum Electronics Conference
  • OSA Technical Digest (CD) (Optica Publishing Group, 2009),
  • paper CThH4
  • •https://doi.org/10.1364/CLEO.2009.CThH4

Low-Threshold Terahertz Quantum-Cascade Lasers with One-Well Injector Operating up to 174 K

Sushil Kumar, Qing Hu, and John L. Reno

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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.

© 2009 Optical Society of America

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