Title :
Hot electrons in resonant-phonon terahertz quantum cascade lasers
Author :
Vitiello, Miriam Serena ; Scamarcio, Gaetano ; Spagnolo, Vincenzo ; Williams, Benjamin S. ; Kumar, Sushil ; Hu, Qing ; Reno, John L.
Author_Institution :
Dipt. Interateneo di Fisica, Bari Univ., Italy
Abstract :
The electronic temperatures of individual subbands, the lattice temperature and the population inversion both below and above the laser threshold of THz quantum cascade lasers are extracted by the analysis of interband μ-probe photoluminescence spectra.
Keywords :
hot carriers; photoluminescence; population inversion; quantum cascade lasers; submillimetre wave lasers; electronic temperature; hot electrons; individual subbands; lattice temperature; photoluminescence spectra; population inversion; quantum cascade lasers; resonant-phonons; Electrons; Laboratories; Optical scattering; Particle scattering; Phonons; Quantum cascade lasers; Quantum computing; Resonance; Semiconductor lasers; Temperature distribution;
Conference_Titel :
Lasers and Electro-Optics, 2005. (CLEO). Conference on
Print_ISBN :
1-55752-795-4
DOI :
10.1109/CLEO.2005.201951
