… The index of a photorefractive crystal is … waves. Accordingly, the subject of this section
is the nonlinear coupling of two plane waves propagating in a photorefractive crystal, two-wave …

… We consider the propagation of light beams in photorefractive media in the framework of a
… in a nonlinear wave propagation equation. This latter is then numerically solved with a beam …

… incident wave propagates from the linear side, but the Kerr nonlinearity is replaced by the
photorefractive effect. We then have a new interface problem, since the photorefractive effect is …

… We found new surface waves propagating along the contact between the … wave propagation
along the interface between photorefractive crystal and parabolic graded-index medium. …

… We investigate propagation of light beams in photorefractive media by direct numerical …
observed in these media. We present results on fanning of a single beam and on formation …

… Inserting this expression into the wave propagation equation allows one to deduce the
equation of evolution of the field amplitude in the form of a spatio-temporal partial differential …

… 15], and incoherent wave propagation in dispersive media [21]. … beam propagates in a slowly
responding nonlinear medium, … In the particular case of a biased photorefractive crystal, the …

… photorefractive phase conjugate mirrors, yielding reflectivities and thresholds. The use of
photorefractive … 8(c)] the signal beam 2 passes through a photorefractive medium and returns to …

… graded-index guiding layer and photorefractive crystal. The … photorefractive crystal and
linearly graded medium. We describe the new types of the nonlinear surface wave propagation …

… It is foundthat, while photorefractive media provide sufhcient nonlinear coupling for the …
F+,—two plane waves propagating symmetrically at an angle 9 to the primary wave [Fig. a)] […