We present an analytical theory of vectorial wave coupling in photorefractive cubic crystals
which are, in general, optically active. The theory is based on the systematic use of the …

We present an electron diffraction study of three sillenites, Bi 12 SiO 20, Bi 25 FeO 39, and
Bi 25 InO 39 synthesized using the solid-state method. We explore a hypothesis, inspired by …

We report the room-temperature Raman spectra of polycrystalline Bi 25 InO 39 for the first
time along with the spectrum of Bi 25 FeO 39. Both samples were synthesized by the …

Phenomena that accompany optical excitation of eigenmodes of electron gas oscillation in
semiconductors with an N-shaped current-voltage (IU) characteristic in a strong electric field …

We investigate the dispersion law (relationship between Ω k and K) of photorefractive waves
using a new experimental method based on the excitation of photorefractive waves by a …

Density functional theory calculations of the vibrational modes of Bi 12 SiO 20 are
presented, with a detailed assignment and geometry investigation of the vibrational modes …

Space-charge waves have been investigated in the sillenite-type crystals Bi12SiO20,
Bi12GeO20, and Bi12TiO20. For the experiments, oscillating light patterns and the effects of …

We report an analysis of the feedback circuit operation that produces fringe-locked
photorefractive running holograms. In agreement with theoretical expectations we …

In this article: a) a method is developed for calculating volumetric diagrams of elastic
scattering of microparticles (in particular, electrons and photons) on single-layer and multi …

Theoretical and experimental investigations of the linear and nonlinear space–charge field
effects in photorefractive materials are reviewed. In particular, the aim is to explore the …