We present experimental evidence demonstrating that the photorefractive-index change responsible for the formation of photorefractive spatial screening solitons and coherent collisions between them is primarily isotropic in nature, even though the photorefractive medium is inherently anisotropic.
© 1998 Optical Society of America
(060.5530) Fiber optics and optical communications : Pulse propagation and temporal solitons
(120.5710) Instrumentation, measurement, and metrology : Refraction
(160.1190) Materials : Anisotropic optical materials
Hongxing Meng, Gregory Salamo, and Mordechai Segev, "Primarily isotropic nature of photorefractive screening solitons and the interactions between them," Opt. Lett. 23, 897-899 (1998)