Optical and photorefractive properties of hydrogen-reduced BaTiO3 are investigated.
Hydrogen-reduction induced a broad optical absorption around 620 nm. From two beam …

Photorefractive performances of 45 -cut BaTiO3 crystals Page 1 Optics Communications 93 (1992)
333-335 North-Holland OPTICS COM MUNICATIONS Photorefractive performances of 45 -cut …

BaTiO3 crystals are important photorefractive materials due to their self-pumped phase-
conjugation and large electro-optic coefficient. High gain, fast response time and proper …

We characterize Rh: BaTiO3 by cw two-beam coupling experiments at 1.06 μm. We
demonstrate that all our measurements are well described by a single-carrier, single-site …

The wavelength dependence of the effective trap density Neff of a BaTiO3: Rh crystal has
been studied theoretically and experimentally. The three-charge-state model and the two …

Optical and photorefractive properties of reduced Rh-doped barium titanate are reported.
Reduction eliminates energy levels of Rh+ 4 and Rh+ 5, and induces an absorption around …

We report how the photorefractive properties of cobalt-doped barium titanate (BaTiO_3) are
influenced by deep and shallow traps. The light-induced dark decay of the space-charge …

Barium titanate (BaTiO3) was one of the first ferroelectric materials to be discovered, and
also one of the first to be recognized as photorefractive [7.1]. The particular advantage of …

Photorefractive barium-calcium titanate crystals with the congruently melting composition
(Ba 0.77 Ca 0.23 TiO 3) doped with iron are annealed in a hydrogen atmosphere at various …

We have used a number of experimental techniques to identify the photorefractive species in
commercial samples of BaTiO3. We find that iron impurities (in the Fe and Fe states) are the …