780 nm near-infrared photorefractive holograms recorded in undoped Bi12TiO20 crystal under the action of external electric field

AL Moura, AA Canabarro, E de Lima, WC Soares… - Optical Materials, 2023 - Elsevier
In this paper, we studied recording and erasure of photorefractive holographic gratings
recorded at 780 nm in an undoped Bi 12 TiO 20 (BTO) crystal sample under the action of an …

Near-infrared properties of Rh-doped Bi12TiO20crystals for photonic applications

V Marinova, RC Liu, SH Lin, MS Chen, YH Lin… - Optics Letters, 2013 - opg.optica.org
The effect of Rh doping in Bi_12TiO_20 (BTO) crystals on the photosensitivity and recording
speed at 1064 nm is reported. Response time of 0.1 s is measured during real-time …

Crystal growth, processing, and characterization of photorefractive BaTiO3

BA Wechsler, MB Klein, D Rytz - Laser and Nonlinear Optical …, 1987 - spiedigitallibrary.org
The development of practical devices utilizing the photorefractive effect in BaTiO3 depends
upon the availability of single crystals with improved properties. In order to achieve this goal …

Optical activity of BSO crystals doped with Cr, Mn and Cu

V Tassev, M Gospodinov, M Veleva - Optical Materials, 1999 - Elsevier
The influence of both photochromic doping and photochromic transitions on the optical
activity (OA) of undoped and doped Cr, Mn and Cu Bi12SiO20 (BSO) crystals is studied. The …

The evolution of the photoinduced space charge and electric field distribution in photorefractive sillenite (Bi12GeO20, Bi12SiO20) crystals

VN Astratov, AV Il'Inskii - Ferroelectrics, 1987 - Taylor & Francis
The paper reviews experimental and theoretical studies of the generation of photoinduced
space charges and electric fields in sillenites. A. method is described of direct field …

Influence of the crystal parameters on the photorefractive effect in BaTiO3

J Li, X Chen, X Li, Y Zhu, X Wu - Journal of Physics and Chemistry of Solids, 1998 - Elsevier
Absorption spectra, light-induced absorption and dark decay rate of photorefractive gratings
in three nominally pure BaTiO3 crystals are measured. The numerical solution of the charge …

Nonlinear photovoltaic effect in sillenite photorefractive crystals

I de Oliveira, DA Capovilla, AL Moura, VS Timóteo… - Optical materials, 2017 - Elsevier
We report on the presence of photovoltaic effect in some Sillenite photorefractive crystals
and compare their behavior with that of the well known photovoltaic LiNbO 3: Fe crystal …

The influence of annealing at different temperatures and atmospheres on the optical rotation of Bi12SiO20 crystals

V Marinova, M Veleva, D Petrova - Optical Materials, 2003 - Elsevier
The optical activity changes in Bi12SiO20 (BSO) crystals induced by thermal annealing
treatments are studied. It is found that the annealing in vacuum and hydrogen atmosphere …

The kinetics of the photochromic effect in Bi12SiO20: Mn

TN Nguyen, MT Borowiec - Journal of Physics and Chemistry of Solids, 1988 - Elsevier
The time dependences of light-induced absorption in Bi 12 SiO 20 doped with Mn for
different illumination intensities 0.1–12 mW cm− 2 at temperatures of 300–500 K were …

The mechanisms of photorefractive effect: Nonphotovoltaic contribution

AP Levanyuk, AR Pogosyan, EM Uyukin - Ferroelectrics, 1981 - Taylor & Francis
An experimental method is proposed to distinguish between photovoltaic and
nonphotovoltaic contribution to “optical damage”. The data obtained for LiNbO3 …