We study self-channeling of light waves in a rotated cut of crystals of the 4<i>mm</i> and the 6<i>mm</i> classes, whose dominant mechanism is photorefractive diffusion nonlinearity. The existence of photorefractive line waves that can be guided along the edge of the crystal is suggested and analyzed.
© 1998 America
(160.5140) Materials : Photoconductive materials
(190.5330) Nonlinear optics : Photorefractive optics
(190.5940) Nonlinear optics : Self-action effects
(240.6690) Optics at surfaces : Surface waves
Stanislav M. Shandarov and Evgeny S. Shandarov, "Photorefractive line waves," Opt. Lett. 23, 1656-1658 (1998)