Photorefractive two-wave mixing with focused Gaussian beams

D Fluck, S Brülisauer, P Günter - Optics communications, 1995 - Elsevier
We report on numerical simulations of two-wave mixing of Gaussian beams in
photorefractive materials. By using a model that takes the lateral intensity distribution of the …

A simple analytic solution for transient two-wave mixing in photorefractive materials

DR Erbschloe, T Wilson - Optics Communications, 1989 - Elsevier
We present a very simple solution to the coupled partial differential equations which
describe the time dependence of hologram formation in photorefractive materials. The …

Stable oscillating nonlinear beams in square-wave-biased photorefractives

GM Tosi-Beleffi, M Presi, E DelRe, D Boschi, C Palma… - Optics Letters, 2000 - opg.optica.org
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Influence of alternating field frequency on enhanced photorefractive gain in two-beam coupling

C Besson, JMC Jonathan, A Villing, G Pauliat… - Optics letters, 1989 - opg.optica.org
We derive an analytic expression describing the intensity and field frequency dependence of
photorefractive gain in two-beam coupling under an alternating square-wave electric field …

Hexagonal optical structures in photorefractive crystals with a feedback mirror

PM Lushnikov - Journal of Experimental and Theoretical Physics, 1998 - Springer
A nonlinear theory is presented for the formation of hexagonal optical structures in a
photorefractive medium equipped with a feedback mirror. Oppositely directed beams in …

Non-Plane Wave Two-Wave Mixing Interaction In Diffusion-Driven Photorefractive Media

GC Gilbreath, FM Davidson - Holographic Optics II: Principles …, 1989 - spiedigitallibrary.org
A phase-aberrated pump beam was photorefractively coupled to a divergent signal beam in
BaTi03 at 514.5 nm. Pump-to-signal ratios were set to induce large modulation depths. No …

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 …

Interference-term real-time measurement for self-stabilized two-wave mixing in photorefractive crystals

PAM Dos Santos, L Cescato, J Frejlich - Optics letters, 1988 - opg.optica.org
We report the real-time direct interference-term measurement for a two-wave-mixing
experiment in photorefractive crystals. Knowledge of the interference term may provide …

Instability threshold of a photorefractive pattern-forming system

O Kamps, P Jander, C Denz - Physical Review E—Statistical, Nonlinear, and …, 2005 - APS
We report on the detailed experimental determination of the threshold for modulational
instability in a photorefractive single-mirror feedback system using a Fourier control …

Theory of multiple-beam interaction in photorefractive media

N Korneev, A Apolinar-Iribe, JJ Sánchez-Mondragón - JOSA B, 1999 - opg.optica.org
We investigate theoretically the interaction of two or more beams intersecting at a small
angle in a photorefractive crystal with a local type of holographic recording. All necessary …