3, LiTaO 3, BaTiO 3, Ba 1-x Sr x TiO 3 (, BST), Ba 1-x Ca x TiO 3 (, BCT), KNbO 3, KTa 1-x
Nb x O 3 (, KTN), Sr 1-x Ba x Nb 2 O 6 (, SBN) and Bi 12 (Si, Ti, Ge) O 20 (BSO, BTO, BGO) …

An alternative empirical correction function is presented for the space-charge field of the
form ƒ (m)= m/(1+ bm), which simulates the functional form of ƒ (m)=[1− exp (-am)]/a …

Holograms recorded under suitable conditions in photorefractive BaTiO 3 exhibit an unusual
dark build-up. The diffraction efficiency increases by some orders of magnitude after the …

Recent analytical results in the frame of photorefractive spatial-soliton propagation are
exploited to derive a novel scheme for the investigation of space-charge field formation in …

Photorefractive materials are used for holographic storage, image processing, and phase
conjugation 11, 2/. Especially BaTi03 with its large electrooptic coefficients has been …

An optical method is presented which allows to identify at room temperature the
photoinduced charge transfers between different defects in photorefractive crystals. The …

We have found simple analytical solutions for the coupled differential equations that are
commonly used to describe unipolar photoconduction in a homogeneous material with …

Light-induced refractive index changes in electro-optic crystals-so-called photorefractive
effects-were discovered in 1966 by Ashkin et al.[5.1] with the study ofelectro-optic and …

We apply directly a perturbative expansion to the hopping model of Feinberg. The first three
harmonics of the space‐charge field are presented, considering the contributions from the …

In this letter, we present the results of two-wave mixing experiments performed with several
BaTiO:> crystals in the temperature range between 20 and 125" C. Earlier publications by …