Title :
Low threshold (Ith<20mA) buried 2.9 THz quantum cascade lasers using a double metal scheme
Author :
Dhillon, S. ; Sirtori, C. ; Alton, J. ; Barbieri, S. ; Beere, H.E. ; Linfield, E.H. ; Ritchie, D.A. ; Calligaro, M. ; De Rossi, A.
Author_Institution :
Materiaux et Phenomenes Quantiques, Univ. Denis Diderot, Paris, France
Abstract :
We demonstrate buried waveguides in THz quantum cascade lasers based on a double-metal scheme. An increase in lateral thermal conductivity results in a small difference of the maximum operating temperature between pulsed and continuous-wave operation.
Keywords :
quantum cascade lasers; submillimetre wave lasers; thermal conductivity; 2.9 THz; THz quantum cascade lasers; buried waveguides; continuous-wave operation; double-metal scheme; pulsed-wave operation; thermal conductivity; Laser modes; Optical devices; Optical pumping; Optical surface waves; Optical waveguides; Quantum cascade lasers; Semiconductor lasers; Strips; Surface emitting lasers; Thermal conductivity;
Conference_Titel :
Lasers and Electro-Optics, 2005. (CLEO). Conference on
Print_ISBN :
1-55752-795-4
DOI :
10.1109/CLEO.2005.201952
