We treat the photorefractive effect in oxide crystals at elevated temperatures where charge
compensation occurs in the absence of photoexcitation of the compensating species. These …

The first observation of an anisotropically recorded grating (with two orthogonally polarized
beams) in photorefractive KNbO 3: Fe is reported. We attribute the effect to influences of 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 …

Photorefractive effects of nominally pure and iron‐doped KNbO3 crystals with
concentrations between 150 and 300 ppm have been investigated. In order to optimize the …

Beam-coupling topography is a new holographic technique for spatially resolved studies of
induced and spontaneous polarization in photorefractive crystals. It is especially suited for …

Broadband Dynamic, Holographically Self-Recorded, and Static Hexagonal Scattering Patterns
in Photorefractive KNbO3:Fe Page 1 University of Dayton eCommons Electrical and Computer …

The influence of optical activity on two-wave mixing (TWM) in photorefractive BTO and BSO
crystals in the absence of an applied field is studied both theoretically and experimentally …

Nondegenerate two-wave interaction in a photorefractive crystal in an external detecting field
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The ability of photorefractive crystals such as barium titanate and strontium barium niobate
to record spatially phase shifted real time holograms with high diffraction efficiency is the …

The large optical nonlinearities of many photorefractive crystais, which can be induced by
moderate light intensities, were the prosperous ground for intensive and diverse activities. I …