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Proceedings Paper

Theory of optical nonlinearities of coupled-band quantum wells with many-body effects
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Paper Abstract

Nonlinear optical properties of lattice-matched and strained semiconductor quantum wells are computed using generalized optical Bloch equations. The equations combine the influence of many-body, strain and bandcoupling effects, within a consistent model for quasi-static screening that includes contributions from all occupied subbands in a single-plasmon-pole type approximation. Numerical solutions for the absorption and refractive index change of InGaAs-AlGaAs systems are presented in the quasi-equilibrium regime for a broad range of excitation conditions, from the low density excitonic regime to the highly excited gain region. Good agreement with recent experimental results is found.

Paper Details

Date Published: 30 June 1994
PDF: 13 pages
Proc. SPIE 2146, Physics and Simulation of Optoelectronic Devices II, (30 June 1994); doi: 10.1117/12.178514
Show Author Affiliations
Mauro Fernandes Pereira, Ctr. Brasiliero de Pesquisas Fisicas (Brazil)
Rolf H. Binder, Optical Sciences Ctr./Univ. of Arizona (United States)
Stephan W. Koch, Optical Sciences Ctr./Univ. of Arizona (United States)

Published in SPIE Proceedings Vol. 2146:
Physics and Simulation of Optoelectronic Devices II
Weng W. Chow; Marek Osinski, Editor(s)

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