Transient behavior of the photorefractive space-charge field

P Vaveliuk, B Ruiz, N Bolognini, J Fernandez - Physical Review B, 2000 - APS
The transient behavior of the fundamental amplitude of the photorefractive space-charge
field is derived without restrictions within the band transport model. The two-wave mixing …

Photorefractive space–charge field formation: linear and nonlinear effects

PM Johansen - Journal of Optics A: Pure and Applied Optics, 2003 - iopscience.iop.org
Theoretical and experimental investigations of the linear and nonlinear space–charge field
effects in photorefractive materials are reviewed. In particular, the aim is to explore the …

Origin of temporal fluctuation in the photorefractive effect

P Xie, IA Taj, T Mishima - JOSA B, 2001 - opg.optica.org
Origin of temporal fluctuation in the photorefractive effect clickable element to expand a topic
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Three-wave and four-wave forward mixing in photorefractive materials

KH Ringhofer, L Solymar - Applied Physics B, 1989 - Springer
An amplification mechanism relying mainly on the real part of the arising space charge field
in the presence of two strong pump beams is described. The dependence of amplification on …

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 …

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 …

Photorefractive space-charge field with running grating and applied sinusoidal ac electric field: solution for all time scales

PM Johansen, HC Pedersen - JOSA B, 1998 - opg.optica.org
We present the first complete theoretical model that describes the formation of the space-
charge field in a photorefractive material that is exposed to a sinusoidal ac electric field with …

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 …

Degenerate parametric amplification in photorefractive media: theoretical analysis

HC Pedersen, PM Johansen - JOSA B, 1996 - opg.optica.org
We present for the first time, to our knowledge, a theoretical analysis of the nonlinear
dynamic space-charge field buildup when a photorefractive medium is exposed …

Kinetics of the higher-order response of photorefractive materials

Z Zhou, X Sun, Y Li, Y Jiang, H Zhao, K Xu, Q Wan - JOSA B, 1996 - opg.optica.org
The analytic expressions for the first three higher-order harmonics of the space-charge field
versus time are obtained by use of the hopping model of Feinberg [J. Appl. Phys. 51, 1297 …