We demonstrate that the fanning light emerging from an optically active fiberlike bismuth titanium oxide (Bi12TiO20) crystal is linearly polarized either parallel to the applied electric-field vector or perpendicular to it, independently of the external ac electric field, the crystal length, and the pump beam polarization state. We show also that a photorefractive surface wave can be generated at the opposite crystal sides, depending on the pump beam polarization.
© 1996 Optical Society of America
Erik Raita, Alexei A. Kamshilin, and Timo Jaaskelainen, "Polarization properties of fanning light in fiberlike bismuth titanium oxide crystals," Opt. Lett. 21, 1897-1899 (1996)