Spatial rogue waves in photorefractive ferroelectrics
We discuss experimental observations of extreme optical events in photorefractive ferroelectric crystals demonstrating a new optical system to study abnormal wave phenomena . Spatial rogue waves emerge as the highly-nonlinear beam propagation is affected by out-of equilibrium properties and large stochastic fluctuations in media response. Ongoing investigations to inspect the role of optical turbulence and spatial incoherence in their generation are also reported.
 D.Pierangeli, F.Di Mei, C.Conti, A.J.Agranat and E.DelRe, Spatial Rogue Waves in Photorefractive Ferroelectrics, Phys. Rev. Lett. 115, 093901 (2015).