A general approach to the space–charge field solution in photorefractive materials in a TWM geometry

M Wichtowski, A Ziółkowski… - Journal of Optics, 2010 - iopscience.iop.org
A general approach to the approximate analytical solution of photorefractive transport
equations for arbitrary fringe contrast is presented. The method based partially on the …

Space-charge fields in photorefractive materials enhanced by moving fringes: comparison of electron–hole transport models

I Aubrecht, HC Ellin, A Grunnet-Jepsen, L Solymar - JOSA B, 1995 - opg.optica.org
Space-charge fields in photorefractive materials enhanced by moving fringes are studied for
simultaneous electron–hole transport. Two distinct models, one with a single set of impurity …

Space-charge field in photorefractive media with a constant applied magnetic field

PM Johansen, AS Jensen - JOSA B, 1991 - opg.optica.org
The photorefractive band transport model is extended to include magnetic effects. The
Newtonian equation of motion for electrons in the conduction band under combined electric …

New approach to solution of photorefractive transport equations

M Wichtowski, A Ziółkowski, E Weinert-Rączka - Open Physics, 2008 - degruyter.com
In our work we propose a novel method of analysis of photorefractive transport equations.
The method based on a perturbative approach can be used in the case of two wave mixing …

Comparison of single-and two-species models of electron–hole transport in photorefractive media

MC Bashaw, TP Ma, RC Barker - JOSA B, 1992 - opg.optica.org
For most regimes descriptions of photorefractive behavior by electron–hole transport with a
single species of impurity levels and by electron–hole transport with two species of impurity …

Analytical solution for temporal photorefractive response in the diffusion regime

M Wichtowski, E Weinert-Raczka - Photonics Letters of Poland, 2009 - photonics.pl
The evolution of a space-charge field during photorefractive two wave mixing in unbiased
sample is considered. An approximate analytical solution describing the photorefractive …

Effects of a single optical beam on photorefractive materials: steady-state solution

C Xu, D Statman, JK McIver - JOSA B, 1992 - opg.optica.org
The band transport model describes charge statics and dynamics within photorefractive
materials. Here a steady-state solution is found for the setting in which an arbitrary optical …

Perturbative analytical solution of two‐wave coupling in photorefractive materials at large modulation depth

Z Zhou, Y Li, X Sun, Y Jiang, H Zhao, K Xu… - Journal of applied …, 1996 - pubs.aip.org
We apply directly a perturbative expansion to the hopping model of Feinberg. The first three
harmonics of the space‐charge field are presented, considering the contributions from the …

Fundamental space-charge fields for applied alternating electric fields in photorefractive materials

A Grunnet-Jepsen, CH Kwak, I Richter, L Solymar - JOSA B, 1994 - opg.optica.org
The fundamental component of the space-charge field in a photorefractive crystal is studied
in the presence of an applied alternating electric field. A general equation for the amplitude …

Perturbative approach to space-charge field dynamics in photorefractive semiconductors

M Wichtowski - Journal of Optics, 2012 - iopscience.iop.org
A general perturbative approach to solving photorefractive material equations for a two-
wave mixing geometry is developed. The method allows the study of both stationary and …