Diffraction from thermally fixed gratings in a photorefractive medium: steady-state and transient analysis

M Jeganathan, L Hesselink - JOSA B, 1994 - opg.optica.org
We investigate diffraction from a thermally fixed grating in a photorefractive medium with an
ion concentration that is large compared with the acceptor density. A numerical solution to …

Theory of nonlinear multiple-grating interaction in diffusion-dominated photorefractive media

HC Pedersen, PE Andersen, PM Petersen… - JOSA B, 1996 - opg.optica.org
Using a new model based on the so-called perturbational approach, we present a
theoretical analysis of nonlinear multiple-grating interaction in diffusion-dominated …

Properties of photorefractive gratings with complex coupling constants

R Saxena, C Gu, P Yeh - JOSA B, 1991 - opg.optica.org
We examine simultaneous write–read of dynamic photorefractive gratings for arbitrary phase
shifts between index grating and intensity pattern. The nonlinear behavior of diffraction …

Evolution and propagation of grating envelopes during erasure in bulk photorefractive media

M Jeganathan, MC Bashaw, L Hesselink - JOSA B, 1995 - opg.optica.org
We present a comprehensive analysis of the evolution of a grating envelope, in both
transmission and reflection geometry, during the erasure process in various readout …

Nonlinear photorefractive response at high modulation depths

F Vachss, L Hesselink - JOSA A, 1988 - opg.optica.org
The response of photorefractive materials to sinusoidal intensity patterns of high modulation
depths is considered. It is shown that the induced refractive-index response in this regime is …

Diffraction properties of momentum-mismatched gratings in photorefractive media

C Gu, J Hong, P Yeh - JOSA B, 1992 - opg.optica.org
We consider the diffraction properties of index gratings in photorefractive media, assuming
an arbitrary momentum mismatch (Bragg mismatch). The incident and diffracted waves …

Origin of temperature-dependent diffraction efficiency in self-enhanced readout from thermally fixed gratings in photorefractive barium titanate

Y Tomita, S Matsushima - JOSA B, 1997 - opg.optica.org
We investigate the role of temperature-dependent ionic and re-created photocarrier (hole)
gratings in self-enhanced readout from thermally fixed holographic gratings in undoped …

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 …

Quasi-stabilized ionic gratings in photorefractive media for multiplex holography

MC Bashaw, JF Heanue - JOSA B, 1997 - opg.optica.org
We investigate photorefractive media for which quasi-stabilized ionic gratings can be used
to prolong readout lifetime. We use coupled-transport-mode theory to describe the …

Evaluation of photoelectric processes in photorefractive crystals via the exposure characteristics of light diffraction

A Kadys, V Gudelis, M Sudzius… - Journal of Physics …, 2004 - iopscience.iop.org
We demonstrate a novel way to analyse carrier recombination and transport processes in
photorefractive semiconductors via the exposure characteristics of light induced diffraction …