Contributions to the large blue emission shift in a GaAsSb type-II laser

Authors
Chow, WW Spahn, OB Schneider, HC Klem, JF
Citation
Ww. Chow et al., Contributions to the large blue emission shift in a GaAsSb type-II laser, IEEE J Q EL, 37(9), 2001, pp. 1178-1182
Citations number
18
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Eletrical & Eletronics Engineeing
Journal title
IEEE JOURNAL OF QUANTUM ELECTRONICS
ISSN journal
00189197 → ACNP
Volume
37
Issue
9
Year of publication
2001
Pages
1178 - 1182
Database
ISI
SICI code
0018-9197(200109)37:9<1178:CTTLBE>2.0.ZU;2-#
Abstract
The large blue shift in the emission with excitation in a GaAsSb-based type -II quantum well is investigated experimentally and theoretically. Comparis on of theory with experiment is made for lasers with "W" type-II structures . The analysis shows the blue shift to be the result of charge-separation, band-distortion, and many-body interactions. For a high threshold gain, the re is an additional contribution from the n=2 subband transition.