Nonlinearity of a response in photorefractive crystals with a square-wave applied field

SM Shandarov, NI Nazhestkina, OV Kobozev… - Applied Physics B, 1999 - Springer
… increase the nonlinear response of photorefractive crystals to the light illumination [1]. …
crystals possessing a long drift length of the charge carriers. Applying this technique, two-wave-…

Theory of photorefractive vectorial wave coupling in cubic crystals

BI Sturman, EV Podivilov, KH Ringhofer, E Shamonina… - Physical Review E, 1999 - APS
… vectorial wave coupling in photorefractive cubic crystals which … of a wide spectrum of
photorefractive phenomena, including the … Applications of the theory to crystals of the sillenite …

Space-charge field induced in a photorefractive crystal with an applied square-wave electric field for large contrast of an interference pattern

RV Litvinov - Russian physics journal, 2001 - Springer
… Nonlinear effects during self-action of a light field in photorefractive crystals such as
Bi12TiO20, Bi12SiO20, and Bi12GeO20 with an applied square-wave electric field engender new …

Space-charge waves in photorefractive crystals and their parametric excitation

BI Sturman, M Mann, J Otten, KH Ringhofer - JOSA B, 1993 - opg.optica.org
… In Section 2 we begin with the usual transport model for photorefractive crystals. From the
equations of electrostatics we define and analyze in Section 3 the dispersion law for ω k the …

Large modulation effects in photorefractive crystals

GA Swinburne, TJ Hall… - 1989 Second International …, 1989 - ieeexplore.ieee.org
… general, and predicts the behaviour of photorefractive materials in the saturation limit with a
… We also consider the effects of applying an AC field with a square waveform to a static grat…

Nonunidirectional energy exchange at the two-wave interaction in cubic photorefractive crystals under a square-wave electric field

OV Kobozev, AA Maximov, RV Litvinov… - 3rd International …, 1999 - spiedigitallibrary.org
photorefractive crystal with shallow traps However, in this case the efficiency of the two-wave
4 Vector diagram ofthe symmetric two-wave mixing in a cubic photorefractive crystal under …

Asymmetry of two-wave coupling in cubic photorefractive crystals

H Tuovinen, AA Kamshilin, T Jaaskelainen - JOSA B, 1997 - opg.optica.org
photorefractive crystal with the angle 2θ between them. The bulk refractive index of the crystal
… These beams produce an interference pattern, which is recorded in the crystal as a space-…

Wave propagation in photorefractive media

JO White, SK Kwong, M Cronin-Golomb… - Photorefractive Materials …, 2008 - Springer
… The index of a photorefractive crystal is … waves. Accordingly, the subject of this section
is the nonlinear coupling of two plane waves propagating in a photorefractive crystal, two-wave

Optical processing using wave mixing in photorefractive crystals

JP Huignard, P Günter - Photorefractive Materials and Their Applications II …, 2008 - Springer
… grating recording and erasure in electrooptic crystals is … applications of photorefractive
crystals, ie, the crystal sensitivity [… compare the different photorefractive crystals and to emphasize …

Ac square-wave field-induced subharmonics in photorefractive sillenite: threshold for excitation by inclusion of higher harmonics

PM Johansen, HC Pedersen, EV Podivilov, BI Sturman - JOSA B, 1999 - opg.optica.org
We investigated both analytically and numerically the simultaneous influence of higher-harmonic
gratings and subharmonic gratings on the threshold for generation of the subharmonic …