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Laser emission at about 3.5 THz from quantum cascade lasers based on a bound-to-continuum transition is reported. Maximum pulsed operation temperature is above liquid nitrogen (90 K). CW operation reaches 55 K with powers up to 15 mW at 10 K.
Lasers and Electro-Optics, 2003. CLEO '03. Conference on
Date of Conference: 6-6 June 2003