The features of guided wave propagation along a composite optical structure consisting of
graded-index substrate and defocusing nonlinear intensity-dependent cladding are …

The waveguide properties of interface between a parabolic graded-index medium and a self-
focusing nonlinear medium are described theoretically. The exact analytical solution to the …

We describe the new peculiarities of the surface electromagnetic wave propagation along a
dielectric slab sandwiched by a nonlinear medium characterized by dielectric permittivity …

In this paper, we propose a new optical nonlinearity model describing a sharp change from
a self-focusing Kerr-type nonlinearity to a defocusing one and vice versa, depending on the …

We consider the three-layered symmetric structure consisting of inner layer with Kerr type
defocusing nonlinearity sandwiched by photorefractive crystals with diffusion nonlinearity …

Even and odd modes propagating along the symmetrical planar waveguide, which is a film
embedded in a nonlinear medium, are described analytically. The dielectric function of the …

The disappearance of defocusing nonlinearity near the crystal surface covered by a
completely screening thin film due to the varying electric field strength is described. The …

We proposed a model that describes the appearance of a self-focusing nonlinear response
near the surface of the initially linear crystal, in dependence of electric field. We obtain exact …

In this paper, we describe new types of transverse electric surface waves in a semi-infinite
crystal covered with a fully shielding film and with an abrupt change in Kerr nonlinearity. We …

We consider the propagation of surface TM waves in a three-layer structure the inner layer of
which is formed by a plate of a crystal with a Kerr type focusing nonlinearity, while its outer …