An overview on paramagnetic defects in BaTiO 3 single crystals, used in photorefractive
applications, is given. New results concerning cation defects include the investigation of …

A new and simple method for the determination of the trap density in C60-sensitized
photorefractive polymers is presented. We show that the radical anion of C60 acts as the …

A laser beam propagating in a photorefractive crystal generates a refractive-index profile
that deflects the beam to one side. This nonlinear deflection can be balanced by total …

Abstract Tin hypothiodiphosphate (Sn 2 P 2 S 6) is a very promising material for
photorefractive applications in the red and near-infrared wavelength range. The main …

铌酸锂(LiNbO3, LN) 是一种多功能多用途的人工晶体, 被称为“光学硅”. 近期以铌酸锂薄膜(LNOI
) 为平台的集成光子学发展迅速, 有将“光学硅” 变为现实的趋势. 高集成意味着高局域高光强密度 …

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

Measurements of absorption, photoconductivity, and dark conductivity and of light-induced
absorption changes in photorefractive Sr_0. 61Ba_0. 39Nb_2O_6: Ce crystals with Ce …

We measure and analyze beam-coupling gain and response time in BaTiO_3 crystals
doped with cobalt at levels of 50 and 100 parts in 10^ 6 for various oxidation and reduction …

Исследованы спектральные зависимости фотоиндуцированного поглощения,
наведенного в нелегированном кристалле титаната висмута при облучении …

Evolution of the light-induced absorption in a Bi 12 TiO 20 crystal is investigated at a
wavelength of 633 nm. It is found that the absorption coefficient evolution consists of fast and …