A two-center photorefractive model permitting all center-to-band transitions and electron-
hole charge transport unifies several models describing subsets of these transitions. Using …

For most regimes descriptions of photorefractive behavior by electron–hole transport with a
single species of impurity levels and by electron–hole transport with two species of impurity …

The steady‐state space‐charge field and the response time of a photorefractive material
illuminated with a sinusoidal interference pattern are derived for two models in which both …

Electron paramagnetic resonance (EPR) and photo-EPR measurements have been made
on cobalt-doped BaTiO 3 single crystals. Crystals illuminated at 25 K with light in the …

The band transport model describes charge statics and dynamics within photorefractive
materials. Here a steady-state solution is found for the setting in which an arbitrary optical …

The gain–length product for two-wave mixing in photorefractive BaTiO_3 is calculated as a
function of the angles between a pump beam and a scattered beam and the crystal c axis …

Rh are the only ones involved in the photorefractive effect at 1.06 μm. In this paper, we apply
this model to the prediction of the steady-state photorefractive space-charge field. We …

A model of the photorefractive effect is presented that includes a shallow-trap level (hole or
electron trap) as well as a species of deep traps with electron and hole excitation. It is shown …

Illumination of a photorefractive BaTiO_3 crystal provides an induced absorption increase,
which is explained by the two-center charge transport model. Detailed investigations of …

We propose a new theoretical model for the light‐induced migration of charges which
mediates the''photorefractive effect''(light‐induced refractive index change) in barium titanate …