We investigated surface dark solitons (SDSs) at the interface between a self-defocusing nonlocal nonlinear medium and a linear medium, both theoretically and experimentally. We demonstrate that fundamental and higher-order SDSs can exist when the linear refractive index of the self-defocusing medium is much greater than that of the linear medium. The fundamental and second-order solitons are observed at the interface between air and a weakly absorbing liquid.
© 2014 Optical Society of America
Original Manuscript: April 9, 2014
Revised Manuscript: May 18, 2014
Manuscript Accepted: May 18, 2014
Published: June 18, 2014
XingHui Gao, Jing Wang, Luohong Zhou, ZhenJun Yang, Xuekai Ma, Daquan Lu, Qi Guo, and Wei Hu, "Observation of surface dark solitons in nonlocal nonlinear media," Opt. Lett. 39, 3760-3763 (2014)