Photorefractive materials combine photoconductive and electro-optic properties: light affects
their electrical conductivity; their optical properties (refractive index, etc.) are affected by …

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) …

A new charge-transport model assuming one center in three different valence states is
discussed for explanation of the photorefractive effect. Quantitative description of …

Abstract A photorefractive Bi 12 TiO 20 (BTO) crystal is exposed with high intensity pulsed-
laser beams 532 nm (the average intensity of the laser was 110 mW/cm 2, the average …

Absorption, light-induced absorption changes, photo and dark conductivities, bulk
photovoltaic currents and two-beam coupling gain coefficients are measured for oxidized, as …

Homogeneous illumination of a BaTiO 3 crystal with a green light pulse allows subsequent
recording of a holographic grating with infrared light pulses. The grating can be read …

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 present the results of an experimental and theoretical investigation of the properties of
rhodium-doped barium titanate (Rh: BaTiO3). In our theoretical analysis we derive an …

Spectral and temporal characteristics of light-induced absorption for an undoped and a Rh-
doped as-grown BaTiO_3 crystal were investigated and compared. Two dark-decay time …

A numerical model of photorefraction in barium titanate with simultaneous hole and electron
photoconductivity and combined deep and secondary photorefractive centers is compared …