Title :
Long wavelength Terahertz Quantum Cascade Lasers, emitting down to 1.2 THz
Author :
Walther, Christoph ; Fischer, Milan ; Scalari, Giacomo ; Faist, Jérôme
Author_Institution :
Univ. ofNeuchatel, Neuchatel
Abstract :
We report operation of terahertz quantum cascade lasers at frequencies from 2.0 THz down to 1.2 THz by using a bound-to-continuum based lasing scheme which combines high injection efficiency and low intersubband absorption.
Keywords :
quantum cascade lasers; submillimetre wave lasers; injection efficiency; intersubband absorption; terahertz quantum cascade lasers; Absorption; Frequency; Laser modes; Laser theory; Laser transitions; Optical imaging; Optical pulses; Physics; Quantum cascade lasers; Semiconductor lasers;
Conference_Titel :
Lasers and Electro-Optics, 2007. CLEO 2007. Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-55752-834-6
DOI :
10.1109/CLEO.2007.4453212
