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) …

Ferroelectric photorefractive Sn_2P_2S_6 crystals become more sensitive to cw radiation of
a Nd^ 3+: YAG laser (λ= 1.06 µm) by preexposure with incoherent white light. Space-charge …

We have grown and characterized crystals of BaTiO_3 doped with Rh. These crystals have a
blue-green color that is probably due to charge-transfer optical transitions involving Rh^ 4+ …

Small polarons and point defects in BaTiO 3 are investigated using hybrid functional
calculations. Based on the experimentally-confirmed order-disorder-type phase transitions …

Nominally pure and rhodium-doped barium-calcium-titanate crystals of the congruently
melting composition Ba 0.77 Ca 0.23 TiO 3 (BCT) are grown by the Czochralski technique …

The advances of photorefractive optics have demonstrated many useful and practical
applications, which include the development of photorefractive optic devices for computer …

Infrared recording of phase gratings is investigated in Sn_2P_2S_6 crystals by radiation of a
Nd^ 3+: YAG laser (λ= 1.06 μm). Space-charge formation and hologram recording are …

are annealed in a hydrogen atmosphere at various temperatures. After these reducing
treatments, absorption, light-induced absorption changes, two-beam coupling direction …

By combined studies of electron spin resonance and optical absorption at low temperatures,
the charge-transfer bands of Rh 5+ and Rh 4+ are identified to be peaked near 1.6 and 1.9 …