Efficiency of optical poling of isotropic media

The spatial distributions of photoinduced electric fields are calculated based on the model of the current mechanism of optical poling of isotropic media and the efficiencies of the main poling schemes differing in the geometry of crossing beams are estimated. It is shown that the volume optical poling in a certain interval of small angles of crossing beams is the most promising for producing homogeneously distributed photoinduced electric structures of a large size.