INTERSUBBAND OPTICAL NONLINEARITY AND BISTABLE BEHAVIOR OF SEMICONDUCTOR SUPERLATTICES

Authors
ZHAO GZ PAN SH
Citation
Gz. Zhao et Sh. Pan, INTERSUBBAND OPTICAL NONLINEARITY AND BISTABLE BEHAVIOR OF SEMICONDUCTOR SUPERLATTICES, Superlattices and microstructures, 21(2), 1997, pp. 177-186
Citations number
11
Categorie Soggetti
Physics, Condensed Matter
Journal title
Superlattices and microstructures → ACNP
ISSN journal
07496036
Volume
21
Issue
2
Year of publication
1997
Pages
177 - 186
Database
ISI
SICI code
0749-6036(1997)21:2<177:IONABB>2.0.ZU;2-U
Abstract
The optical nonlinearity and bistability (OB) induced by intersubband transitions (ISBTs) in semiconductor superlattices are studied by mean s of the Kronig-Penney model and the density-matrix method. The OB sta te equation in a Fabry-Perot configuration is derived. It is shown tha t the ISBT-induced OB can be realized over a wide frequency range, and its bistable domain and hysteresis loop are much larger than those of a two-level system. Numerical illustration of the OB behavior in a Ga As/AlxGa1-xAs superlattice is also given. (C) 1997 Academic Press Limi ted