Two optical beams can couple in a photorefractive crystal without using the electro-optic
effect. Beam coupling is due to a spatially modulated absorption caused by the …

Charge dynamics in photorefractive materials for the case in which an index grating is
written by interfering light beams is investigated. Of particular interest is the case in which …

We present a very simple solution to the coupled partial differential equations which
describe the time dependence of hologram formation in photorefractive materials. The …

We derive an analytical expression describing the effect of phase modulation in two-wave
mixing for dynamically recorded phase-shifted holograms in photorefractive materials. The …

We present detailed calculations of the temporal and spatial evolution of beam fanning in
photorefractive crystals that is initiated by scattering from noise. We show that fanning starts …

We report on the holographic recording on photorefractive Bi 2 TeO 5 crystals using λ= 633
nm wavelength light. We studied the behavior of this material under the action of this low …

We report the direct recording of electron-based photorefractive hologram in nominally
undoped Bi 12 TiO 20 crystals using 780 nm wavelength light without pre-exposure or any …

We have used the light‐induced grating erasure technique to measure the photorefractive
properties of pure and iron doped BaTiO3. Our experiments were performed using an …

We show, theoretically and experimentally, that the buildup of the space-charge field in
photorefractive crystals is far from monoexponential for circular light beams. This is a …

This thesis is devoted to the investigation and the application of holographic gratings
induced by ultraviolet light in ferroelectric materials The gratings are recorded by exploiting …