Recent analytical results in the frame of photorefractive spatial-soliton propagation are exploited to derive a novel scheme for the investigation of space-charge field formation in photorefractive crystals. The procedure is specialized to describe a two-wave mixing configuration. To test our predictions, we have performed an experiment in a sample of BaTiO<sub>3</sub>.
© 1998 Optical Society of America
Eugenio DelRe, Alessandro Ciattoni, Bruno Crosignani, and Mario Tamburrini, "Approach to space-charge field description in photorefractive crystals," J. Opt. Soc. Am. B 15, 1469-1475 (1998)