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Proceedings Paper

The influence of nonlinear electron transport on photorefractive properties of semi-insulating multiple quantum well structure
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Paper Abstract

Stationary and transient behaviour of photorefractive multiple quantum well structure illuminated by interfering plane waves of near resonant frequency was investigated in frames of photogeneration, diffusion, drift and trapping (PDDT) model. The influence of high intensity electric field applied along the quantum wells planes was considered and an effect of a nonlinear transport of electrons, characteristic for GaAs/AlGaAs samples, was included. An analytical expression for the fundamental amplitude of space-charge field in the sample and the dependence of the photorefractive grating response time on material parameters in the case of low interference pattern contrast is presented and compared with the earlier results.

Paper Details

Date Published: 5 October 2005
PDF: 12 pages
Proc. SPIE 5949, Nonlinear Optics Applications, 594904 (5 October 2005); doi: 10.1117/12.626095
Show Author Affiliations
Ewa Weinert-Raczka, Szczecin Univ. of Technology (Poland)
Marek Wichtowski, Szczecin Univ. of Technology (Poland)

Published in SPIE Proceedings Vol. 5949:
Nonlinear Optics Applications
Miroslaw A. Karpierz; Allan Dawson Boardman; George I. Stegeman, Editor(s)

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