Photorefractive vectorial wave mixing in different geometries

RV Romashko, S Di Girolamo, YN Kulchin… - JOSA B, 2010 - opg.optica.org
We analyze vectorial wave mixing in a photorefractive crystal of cubic symmetry in different
geometries of beam interactions--reflection, transmission, and orthogonal. It is shown that …

Instability of spatial gratings induced by ac fields in photorefractive crystals

BI Sturman, M Mann, KH Ringhofer - Optics letters, 1992 - opg.optica.org
It is shown that spatial gratings in photorefractive crystals, induced by the standing
interference pattern of two coherent waves and an external alternating electric field, may be …

Verification of the standard model of the photorefractive nonlinearity in BSO crystals

DJ Webb, A Kieβling, BI Sturman, E Shamonina… - Optics …, 1994 - Elsevier
On the basis of the standard model for the photorefractive nonlinearity we investigate
whether a systematic description of the dependence of two-beam energy exchange on …

High-gain, low-noise signal beam amplification in photorefractive BaTiO3

J Joseph, PKC Pillai, K Singh - Applied optics, 1991 - opg.optica.org
We describe a pulse readout technique for high gain and a high signal-to-noise ratio (SNR)
in signal beam amplification by two-beam coupling in a photorefractive BaTiO_3 crystal. The …

Diffraction properties of multiple-beam photorefractive gratings

R Saxena, F Vachss, I McMichael, P Yeh - JOSA B, 1990 - opg.optica.org
We have analytically solved the problem of N mutually incoherent pairs of beams in
photorefractive media, each pair of which shares a common grating. The results are applied …

Phase conjugation via multiple gratings in photorefractive crystals

MR Belić - Physical Review A, 1988 - APS
We consider phase conjugation via degenerate four-wave mixing in photorefractive crystals
when more than one grating mechanism is operative. A method for exact solution of the …

Dependence of photorefractive beam fanning on beam parameters

PP Banerjee, RM Misra - Optics communications, 1993 - Elsevier
Dependence of photorefractive beam fanning on beam parameters Page 1 Optics
Communications 100 ( 1993) 166-l 72 OPTICS North-Holland COMMUNICATIONS …

Intensity‐dependent absorption and photorefractive properties in cerium‐doped BaTiO3 crystals

C Yang, Y Zhang, X Yi, P Yeh, Y Zhu, M Hui… - Journal of applied …, 1995 - pubs.aip.org
We report the optical absorption and photorefractive properties of a series of cerium‐doped
barium titanate crystals. The light‐induced absorption and the intensity‐dependent two …

Image-degradation mechanisms in photorefractive amplifiers

F Vachss, P Yeh - JOSA B, 1989 - opg.optica.org
The process of high-gain image amplification in photorefractive crystals is investigated. We
show that in the regime of large energy transfer, the spatially nonuniform depletion of the …

Picosecond photorefractive effect in BaTiO3

AL Smirl, GC Valley, RA Mullen, K Bohnert, CD Mire… - Optics letters, 1987 - opg.optica.org
We report the observation of photorefractive index gratings written and read out in BaTiO_3
using single pulses of 30-psec duration and fluences of 1 to 15 mJ/cm^ 2 at a wavelength of …