THEORY OF NONLINEAR-OPTICAL ABSORPTION IN COUPLED-BAND QUANTUM-WELLS WITH MANY-BODY EFFECTS

Authors
PEREIRA MF BINDER R KOCH SW
Citation
Mf. Pereira et al., THEORY OF NONLINEAR-OPTICAL ABSORPTION IN COUPLED-BAND QUANTUM-WELLS WITH MANY-BODY EFFECTS, Applied physics letters, 64(3), 1994, pp. 279-281
Citations number
29
Categorie Soggetti
Physics, Applied
Journal title
Applied physics letters → ACNP
ISSN journal
00036951
Volume
64
Issue
3
Year of publication
1994
Pages
279 - 281
Database
ISI
SICI code
0003-6951(1994)64:3<279:TONAIC>2.0.ZU;2-W
Abstract
Nonlinear optical absorption spectra and refractive index changes are computed for coupled-band semiconductor quantum wells by numerically s olving the interband polarization equation. The theory combines band-s tructure engineering with many-body techniques and is applied to latti ce-matched GaAs-AlGaAs and strained InGaAs-GaAs systems with carrier d ensities ranging from the excitonic to the gain regimes. Good agreemen t with recent experimental results is found.