… These mirrors possess the peculiar property that an optical beam "reflect ed" from them …
An im age is encoded onto an "object" beam, which is directed into a photorefractive crystal …

… photorefractive effect was originally discovered as undesirable optical damage in nonlinear
and electro-optical crystals… for beam amplification, realtime interferometry, optical phase …

… beam through the electro-optic crystals LiNbO3, LiTaO, and some other compounds. The
laser beam … tive index of the crystal, thereby leading to distortion of the beam's wave front. The …

… of a material in response to an optical beam. All these localmechanisms lack the nonlocal
… Recent work on making liquid crystals photorefractive has produced some verypromising …

The model equations for beam propagation in photorefractive material are simplified under
appropriate conditions. The possibility of obtaining bright and dark screening soliton …

… We consider the propagation of an optical beam along the z axis of a self-focusing photorefractive
crystal with asymmetric diffusion nonlocality. The propagation dynamic of the beam is …

… PR crystal.Such soliton states are possible provided that the optical beam is linearly polarized…
Very recently, vector solitons involving the two polarization components of an optical beam …

… in the transmitted beams, we conclude that both writing beams experience depolarization in
the … between light scattered from optical imperfections in the crystal and the incident beam. …

… on beam angles, polarisation and crystal orientation. Finally we discuss some applications
… non-linear optics which exploit some of the unique features of the photorefractive effect. The …

… -wave (broad) optical beam in a biased PR crystal, let us first consider an optical wave that
… For demonstration purposes, let the PR crystal be SBN, with its optical c-axis oriented along …