Surface-wave solitons, induced by the pyroelectric effect, are formed at the interface between a photorefractive ferroelectric medium and a linear medium. These optical solitons are trapped in both transverse dimensions and are efficiently attracted to the interface. The asymmetric shape of the nonlinear index change formed under the charge saturation regime is responsible for the surface-wave solitons’ formation. Experimental demonstrations are performed in a lithium niobate sample with moderate temperature change. The phenomenon is successfully explained through numerical simulations.
© 2010 Optical Society of America
Original Manuscript: January 13, 2010
Revised Manuscript: March 8, 2010
Manuscript Accepted: March 9, 2010
Published: April 15, 2010
Jassem Safioui, Eugenio Fazio, Fabrice Devaux, and Mathieu Chauvet, "Surface-wave pyroelectric photorefractive solitons," Opt. Lett. 35, 1254-1256 (2010)