We present an analysis of photorefractive properties of bulk periodically poled lithium niobate. The results obtained are applied to description and interpretation of phase-matched four-wave processes found recently in this novel nonlinear material. These processes manifest themselves in rings, lines, and dots of light-induced scattering that are essentially different from those known for single-domain crystals. We conclude that periodically poled lithium niobate is a new nonlinear material promising for various photorefractive applications.
© 2002 Optical Society of America
Evgueny Podivilov, Boris Sturman, Mikhail Goul'kov, Serguey Odoulov, Gabriel Calvo, Fernando Agulló-López, and Mersedes Carrascosa, "Parametric scattering processes in photorefractive periodically poled lithium niobate," J. Opt. Soc. Am. B 19, 1582-1591 (2002)