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 …

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 (Bi2TeO5) is a new photorefractive material that is now available as single
crystals of high optical quality. The results of measuring the photorefractive properties of …

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 …

We report on the holographic recording on photorefractive Bi 2 TeO 5 crystals using λ= 633
nm wavelength light. We studied the behavior of this material under the action of this low …

Refractive index gratings were written by 18 ps laser pulses in a new photorefractive
material Bi 2 TeO 5. The time evolutions of the gratings were followed by delayed probe …

The optical, photochromic, and photorefractive properties of Ga-doped Bi_12TiO_20 (BTO:
Ga) and Bi_12Gax Bi_1–xO_19. 5 (BGaO) crystals have been compared. The dispersion of …

We use photoconductivity and holographic techniques to characterize some material and
transport properties in undoped and doped photorefractive sillenite crystals, with particular …

The influence of low (∼ 10− 4 wt.%) chromium concentrations on the photorefractive
properties of sillenite crystals have been studied by holographic techniques. The presence …