We numerically study soliton dynamics at the interface between media with uniform and periodically modulated self-focusing nonlinearities. We find that the soliton can spontaneously laterally drift if its power is large enough. The drift direction can be controlled by changing the sign of the nonlinear modulation coefficient. We also study the dynamics of soliton launched with a tilt angle toward the nonlinear interface and reveal unique features, such as soliton rebound, penetration, and trapping.
© 2010 Optical Society of America
Original Manuscript: January 27, 2010
Revised Manuscript: April 16, 2010
Manuscript Accepted: April 20, 2010
Published: May 14, 2010
Yingji He, Dumitru Mihalache, and Bambi Hu, "Soliton drift, rebound, penetration, and trapping at the interface between media with uniform and spatially modulated nonlinearities," Opt. Lett. 35, 1716-1718 (2010)