Title :
High-performance terahertz quantum cascade lasers
Author :
Kohler, Ralph ; Tredicucci, Alessandro ; Beltram, Fabio ; Beere, Harvey E. ; Linfield, Edmund R. ; Davies, A. Giles ; Ritchie, David A.
Author_Institution :
NEST-INFM & Scuola Normale Superiore, Pisa, Italy
Abstract :
GaAs/AlGaAs superlattice quantum cascade lasers are operated in continuous-wave at 3.5 THz and 4.5THz. High output powers of several mW and low threshold current densities are achieved.
Keywords :
III-V semiconductors; gallium arsenide; quantum cascade lasers; semiconductor superlattices; ternary semiconductors; 3.5 THz; 4.5 THz; GaAs-AlGaAs; GaAs/AlGaAs superlattice quantum cascade lasers; continuous-wave; low threshold current density; terahertz quantum cascade lasers; Optical pulses; Optical superlattices; Power generation; Power lasers; Pulsed laser deposition; Quantum cascade lasers; Semiconductor lasers; Semiconductor superlattices; Surface emitting lasers; Threshold current;
Conference_Titel :
Lasers and Electro-Optics, 2003. CLEO '03. Conference on
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
1-55752-748-2
