Translator Disclaimer
7 March 2006 High power superlattice quantum cascade laser emitting at 2.0 THz
Author Affiliations +
We report the operation of a 2 THz quantum cascade laser based on a GaAs/Al0.1Ga0.9As heterostructure. Lasing action takes place between an isolated subband and the upper state of a 14 meV wide miniband. In pulsed mode, with a 3.16mm long device, we report a threshold current density of 115 A/cm2 at T = 4K, with a maximum measured peak power of 50 mW. The device shows lasing action in continuous wave up to 47K, with a maximum power in excess of 15 mW at T = 4K.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Chris Worrall, Jesse Alton, Mark Houghton, Stefano Barbieri, Carlo Sirtori, Harvey E. Beere, and David Ritchie "High power superlattice quantum cascade laser emitting at 2.0 THz", Proc. SPIE 6120, Terahertz and Gigahertz Electronics and Photonics V, 61200N (7 March 2006);

Back to Top