Title :
Observation of infrared intersubband emission in optically pumped quantum wells
Author :
Moussa, Z. ; Boucaud, P. ; Julien, F.H. ; Lavon, Y. ; Sa´ar, A. ; Berger, V. ; Nagle, J. ; Coron, N.
Author_Institution :
Inst. d´´Electron. Fondamentale, Univ. de Paris-Sud, Orsay, France
fDate :
5/25/1995 12:00:00 AM
Abstract :
Mid-infrared intersubband emission is investigated in GaAs/AlGaAs asymmetric coupled quantum wells exhibiting an energy separation between the ground and first excited subbands close to the LO-phonon energy. The authors show that an infrared emission occurs between excited subbands under intersubband optical pumping
Keywords :
III-V semiconductors; aluminium compounds; gallium arsenide; optical pumping; quantum well lasers; semiconductor quantum wells; stimulated emission; GaAs-AlGaAs; GaAs/AlGaAs asymmetric coupled quantum wells; energy separation; infrared emission; infrared intersubband emission; intersubband optical pumping; mid-IR intersubband emission; optically pumped quantum wells; stimulated emission;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19950597
