Title :
Buried heterostructure 2.9 THz quantum cascade lasers operating up to 77 K in continuous wave using two-dimensional surface plasmon confinement
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 the continuous wave operation of a 2.9 THz quantum cascade laser up to 77 K based on a novel buried waveguide geometry. A two dimensional surface plasmon mode is bound at the metal-semiconductor interface, therefore avoiding the usual lateral air confinement for the laser. This is combined with an independent electron channel via proton implantation to realise an embedded structure.
Keywords :
interface structure; quantum cascade lasers; semiconductor-metal boundaries; submillimetre wave lasers; surface plasmons; waveguide lasers; 2.9 THz; 77 K; THz lasers; buried heterostructure lasers; buried waveguide geometry; continuous wave operation; embedded structure; independent electron channel; metal-semiconductor interface; proton implantation; quantum cascade lasers; two dimensional surface plasmon mode; two-dimensional surface plasmon confinement; Electrons; Geometrical optics; Laser modes; Plasmons; Protons; Quantum cascade lasers; Semiconductor-metal interfaces; Surface emitting lasers; Surface waves; Waveguide lasers;
Conference_Titel :
Lasers and Electro-Optics Society, 2004. LEOS 2004. The 17th Annual Meeting of the IEEE
Print_ISBN :
0-7803-8557-8
DOI :
10.1109/LEOS.2004.1363356
