title: Spatial rectification of the electric field of space charge waves
abstract: A new phenomenon associated with a nonlinear interaction of optically excited space charge waves has been discovered in photorefractive crystals of the sillenite family. This interaction provides a spatial rectification of the electric field of the space charge waves and leads to a temporally oscillating, but spatially homogeneous electric field of the order of 50-60 V/cm which is detected by a probe beam via the electro-optic effect. Taking into account that the displacement current plays an important role, we demonstrate a very good agreement between the experimental data and the suggested theoretical model.
authors.affiliation: Physical Technical Institute of the Russian Academy of Sciences, St. Petersburg, 194021, Russia.
authors.initials: MP
authors.lastname: Petrov
authors.initials: AP
authors.lastname: Paugurt
authors.initials: VV
authors.lastname: Bryksin
authors.initials: S
authors.lastname: Wevering
authors.initials: E
authors.lastname: Kratzig