Title :
Optically pumped intersub-band emission in quantum wells
Author :
Julien, F.H. ; Sa´ar, A. ; Wang, J. ; Leburton, J.-P.
Author_Institution :
Institut d´´Electronique Fondamentale, CNRS, Orsay, France
fDate :
5/11/1995 12:00:00 AM
Abstract :
Mid-infrared intersub-band emission is investigated in asymmetric coupled quantum wells. The authors predict that stimulated emission can occur between excited sub-bands under either intersub-band or band-to-band optical pumping when the energy separation between the ground and first excited sub-bands equals the LO phonon energy
Keywords :
interface phonons; interface states; optical pumping; semiconductor quantum wells; stimulated emission; LO phonon energy; asymmetric coupled quantum wells; band-to-band optical pumping; energy separation; excited sub-bands; first excited sub-bands; ground sub-bands; intersub-band optical pumping; mid-infrared intersub-band emission; optically pumped intersub-band emission; quantum wells; stimulated emission;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19950524
