Title :
Terahertz heterostructure lasers
Author :
Tredicucci, Alessandro ; Köhler, Rüdeger ; Beltram, F. ; Beere, Harvey E. ; Linfield, Edmund H. ; Davies, A. Giles ; Ritchie, David A.
Author_Institution :
NEST-INFM, Pisa, Italy
Abstract :
Unipolar semiconductor injection lasers emitting at THz frequencies have been demonstrated. The devices, based on the quantum-cascade scheme in GaAs/AlGaAs superlattices, operate in continuous-wave up to 50 K (70 K pulsed) with output powers of several mW.
Keywords :
III-V semiconductors; aluminium compounds; gallium arsenide; quantum cascade lasers; submillimetre wave generation; submillimetre wave lasers; 50 K; 70 K; GaAs-AlGaAs; GaAs/AlGaAs superlattices; continuous-wave operation; heterostructure lasers; quantum-cascade scheme; terahertz lasers; unipolar semiconductor injection lasers; Electromagnetic scattering; Electrons; Frequency; Laser transitions; Optical scattering; Particle scattering; Phonons; Photonic band gap; Quantum cascade lasers; Semiconductor lasers;
Conference_Titel :
Microwave Photonics, 2003. MWP 2003 Proceedings. International Topical Meeting on
Print_ISBN :
0-7803-8691-4
DOI :
10.1109/MWP.2003.1422814
