We study the influence of the application of an external electric field on the grating formed in
(1-10) and (111)-cut photorefractive sillenite crystals. Optimum conditions for application of …

We study the diffraction efficiency of volume phase gratings in Bi 12 GeO 20, when the
grating vector, lying on a (111) plane, is at an angle with respect to the crystallographic …

We study the diffraction efficiency of volume phase gratings in Bi12GeO20, when the grating
vector, lying on a (1 1 0) plane, makes an angle with the (110) crystallographic direction. An …

We study the influence of bias dc electric field on the optical properties of volume phase
gratings formed in optically active photorefractive sillenite crystals. By considering a general …

We report on the direct measurement of the electrogyration coefficient of Bi 12 Ge O 20
sillenite crystals over the visible spectral range. The coefficient is directly measured on a …

The photorefractive crystals of the sillenite family (Bi 12 SiO 20 or BSO, Bi 12 GeO 20 or
BGO, and Bi 12 TiO 20 or BTO) that belong to the cubic 23 point group are optically active …

We solved numerically the set of partial, non-linear, material rate differential equations for
different values of grating period in a photorefractive, sillenite crystal (Bi12SiO20). These …

We consider the photorefractive response in a sillenite crystal with shallow traps when a
square-wave applied field is used. The numerical results give the dependences of two-beam …

The photoconductive and photorefractive properties of three undoped sellenite crystals
(Bi12SiO20-Bi12GeO20) are investigated. We report, high grating diffraction efficiencies …

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 …