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 …
M Segev, Y Ophir, B Fischer - Applied physics letters, 1990 - pubs.aip.org
Self-defocusing of a Gaussian light beam in a bulk photorefractive BaTiGl crystal is demonstrated. This is a low light intensity process which results from the coupling and power …
LB Au, L Solymar - IEEE journal of quantum electronics, 1988 - ieeexplore.ieee.org
Interactions between optical beams incident upon and generated within a photorefractive material are investigated by numerically solving a set of nonlinear coupled differential …
BI Sturman, A Bledowski, J Otten, KH Ringhofer - JOSA B, 1992 - opg.optica.org
We show analytically and numerically that the refractive-index gratings produced by the photorefractive effect need not be of the same periodicity as the driving light intensity. Even …
It is shown that power exchange is possible in photorefractive materials even though the grating produced by the two incident waves is in phase with their interference pattern. The …
BA Usievich, DK Nurligareev, VA Sychugov… - Quantum …, 2011 - iopscience.iop.org
Special features of light-induced scattering of radiation (λ= 0.44 μm) with extraordinary polarisation in the SBN-75 photorefractive crystal are studied in detail and an efficient …
AA Kamshilin, E Raita, AV Khomenko - JOSA B, 1996 - opg.optica.org
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 …
YH Hong, P Xie, JH Dai, Y Zhu, HG Yang, HJ Zhang - Optics letters, 1993 - opg.optica.org
A model to describe the fanning effect based on the beam-coupling mechanism in photorefractive crystals is presented. The intensity distribution of the fanning beam in a 45° …
SA Chetkin, IM Akhmedzhanov - Quantum Electronics, 2011 - iopscience.iop.org
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 …