Polarization orthogonalization of interacting beams in cubic photorefractive crystals

I Rocha-Mendoza, AV Khomenko - JOSA B, 2004 - opg.optica.org
We present a numerical and experimental study of vectorial two-wave mixing in cubic
photorefractive crystals with nonlocal gratings in the case of strong wave coupling when the …

Feedback controlled periodic states for different kinds of photorefractive nonlinear response

BI Sturman, AS Gorkunova, KH Ringhofer - The European Physical …, 2003 - Springer
We investigate analytically and numerically the influence of the type of the photorefractive
nonlinear response on the periodic states (attractors) which occur during feedback …

Theory of critical enhancement of photorefractive beam coupling

EV Podivilov, BI Sturman, MV Gorkunov, VP Kamenov… - Physical Review E, 2002 - APS
We develop the idea of critical enhancement of the photorefractive response near the
threshold of parametric excitation of space-charge waves (the spatial subharmonics) taking …

Polychromatic two-wave mixing in a cubic photorefractive crystal

RV Romashko, MA Asalkhanova, YN Kulchin - Physics Procedia, 2017 - Elsevier
Abstract Model of polychromatic two-wave mixing in a cubic photorefractive crystal is
proposed. The model is based on the coupled waves theory and allow simulate the …

Adaptive photorefractive interferometers for ultrasound detection

AA Kamshilin - Advanced Materials and Devices for Sensing …, 2002 - spiedigitallibrary.org
The principle of optical detection of ultrasound consists in measuring the phase modulation
induced by the small ultrasonic surface displacement upon a probe beam impinging on the …

Polarization self-modulation of speckle patterns in a bundle of photorefractive crystals

N Nazhestkina, E Nippolainen, AA Kamshilin… - Journal of Applied …, 2000 - pubs.aip.org
The experimental and theoretical studies of a polarization self-modulation effect in
photorefractive Bi 12 TiO 20 crystals are presented. We developed an approximate theory …

Parallel subsystem: An almost precise solution for two-wave mixing in sillenites

Y Hu, KH Ringhofer, E Shamonina - JOSA B, 2001 - opg.optica.org
We deal with the vectorial equations of two-wave mixing without an external field (diffusion
response) in Bi_12SiO_20 and Bi_12TiO_20 by splitting the vectorial amplitudes of signal …

A systematic approach to diffusion recording in photorefractive sillenite crystals

Y Hu, E Shamonina, VP Kamenov, KH Ringhofer… - Optical Materials, 2001 - Elsevier
We present a new method to solve the coupled equations for two-wave mixing (TWM) in
sillenites. The first-order solutions, based on the approximation of a weak grating and strong …

Photorefractive light scattering families in (111)-cut crystals with an external electric ac field

VP Kamenov, E Shamonina, KH Ringhofer… - Physical Review E, 2000 - APS
We investigate here both theoretically and experimentally light-induced scattering in (111)-
cut Bi 12 TiO 20 crystals with an external ac field. Our simple analytic solution, which is …

Multi-channel adaptive fiber-optic interferometry system for nano-metrology

RV Romashko, MN Bezruk, AA Kamshilin… - Pacific Science …, 2012 - elibrary.ru
Six-channel adaptive interferometer based on dynamic holograms multiplexing in
photorefractive CdTe: V crystal is developed. The geometry of wave mixing in the crystal …