Title :
Low threshold step well quantum cascade laser emitting at 3 THz
Author :
Scalari, Giacomo ; Amanti, Maria I. ; Fischer, Milan ; Terazzi, Romain ; Walther, Christoph ; Beck, Mattias ; Faist, Jérôme
Author_Institution :
Inst. of Quantum Electron., ETH Zurich, Zurich, Switzerland
Abstract :
A resonant-phonon THz quantum cascade laser based on Al0.03Ga0.097As step well is demonstrated. Maximum pulsed operating temperature is 123 K, with threshold current densities as low as 110 A/cm2 at 10 K and 175 A/cm2 at 100 K.
Keywords :
III-V semiconductors; aluminium compounds; current density; gallium arsenide; phonons; quantum cascade lasers; Al0.03Ga0.097As; frequency 3 THz; pulsed operating temperature; resonant-phonon THz quantum cascade laser; step well; temperature 10 K; temperature 100 K; temperature 123 K; threshold current densities; Laser modes; Optical pulses; Optical scattering; Optical waveguides; Phonons; Plasmons; Quantum cascade lasers; Resonance; Temperature; Threshold current;
Conference_Titel :
Lasers and Electro-Optics, 2009 and 2009 Conference on Quantum electronics and Laser Science Conference. CLEO/QELS 2009. Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-55752-869-8
Electronic_ISBN :
978-1-55752-869-8
