A nonlinear optical phenomenon, namely, the surface waves in photorefractive crystals with
a diffusion nonlinearity (of the gradient type), is suggested and analyzed. These waves can …

We consider a steady-state nonlinear photorefractive surface wave (PR SW) with TE or TM
polarisation when the refractive index of the photorefractive crystal (PRC) depends on the …

A laser beam propagating in a photorefractive crystal generates a refractive-index profile
that deflects the beam to one side. This nonlinear deflection can be balanced by total …

It is shown that TM-polarised surface waves, which exhibit a different character of their
attenuation, can propagate along a dielectric layer separating photorefractive crystals with a …

We consider the photorefractive crystal with diffusion nonlinearity mechanism contacting
with the linearly graded-index medium. The new types of the surface waves propagating …

Objective. A model of a composite waveguide structure based on a photorefractive crystal
with a diffusion mechanism with a nonlinear self-focusing coating is considered. The Kerr …

Excitation of nonlinear surface waves is studied at the SBN-75 crystal—air interface. The
SBN-75 crystal is characterised by the diffusion-type photorefractive nonlinearity, the surface …

The new types of surface waves propagating along the interfaces between photorefractive
crystal and parabolic graded-index medium are described theoretically. The optical …

Propagation of the light beam in a thin photorefractive crystal with the diffusion-type
mechanism of nonlinearity has been studied both experimentally and theoretically. Total …

We consider propagation of a light beam in photorefractive media in the framework of a
three-dimensional model. We formulate equations governing three-dimensional distribution …