Electroabsorption in extremely shallow quantum wells: Comparison between theory and experiment

Authors
Chen, X Earnshaw, MP Goossen, KW Batty, W Allsopp, DWE Grey, R
Citation
X. Chen et al., Electroabsorption in extremely shallow quantum wells: Comparison between theory and experiment, J APPL PHYS, 85(10), 1999, pp. 7231-7238
Citations number
32
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF APPLIED PHYSICS
ISSN journal
00218979 → ACNP
Volume
85
Issue
10
Year of publication
1999
Pages
7231 - 7238
Database
ISI
SICI code
0021-8979(19990515)85:10<7231:EIESQW>2.0.ZU;2-U
Abstract
It is shown, via detailed comparison between measured electroabsorption spe ctra and electroabsorption spectra calculated by a full excitonic Green's f unction method, a decoupled excitonic Green's function method and a variati onal method, that accurate description of the Coulombic coupling between di fferent subband pairs, including unbound quantum well states above the quan tum well edge, is crucial for a correct prediction of electroabsorption in extremely shallow quantum well structures. (C) 1999 American Institute of P hysics. [S0021-8979(99)05610-8].