Bismuth tellurite is a new non-linear optical material with interesting photorefractive
properties. Chromium builds into the crystal in 6+ valence state (chromate anion). The …

Abstract Bismuth tellurite (Bi2Te05) is a new nonlinear optical material which has only
recently been prepared in single crystal form suitable for optical investigations. The material …

Bi2TeO5 is a new nonlinear optical crystal with interesting photorefractive properties. A
photorefractive grating that was written into a sample more than four years ago is still …

Abstract Bismuth tellurium oxide (Bi 2 TeO 5) is a new material expected to exhibit nonlinear
properties because of its noncentrosymmetric crystal structure. A conventional crossed cw …

Bismuth tellurite has a unique feature, a long-living (years) photorefractive memory that
develops in the four-wave mixing process without fixing. Single crystals of Bi2TeO5 were …

Single crystals of Bi, TeO,, both undoped and doped with transition-metal-ion dopants, were
grown with high optical quality. Continuous-wave four-wave-mixing experiments on these …

We have used a number of experimental techniques to identify the photorefractive species in
commercial samples of BaTiO_3. We find that Fe impurities (in the Fe^ 2+ and Fe^ 3+ states) …

Bi12TiO20 (BTO) single crystals nominally pure and doped with ruthenium are grown by top-
seeded solution growth method. The effect of ruthenium concentration on optical and …

We describe the effect of radiation of different wavelengths in the visible and near infrared
range over photochromism, bleaching and photorefractive recording on undoped Bi12TiO20 …

The non-linear optical crystal Bi2TeO5 is a good host for several cations with segregation
coefficients close to or larger than unity. Bi2TeO5: Er was the first rare earth doped crystal …