Observation of nonlinear surface waves in modulated waveguide arrays.
We describe theoretically and study experimentally nonlinear surface waves at the edge of a modulated waveguide array with a surface defect and a self-defocusing nonlinearity. We fabricate such structures in a LiNbO(3) crystal and demonstrate the beam switching to different output waveguides with a change of the light intensity due to nonlinear coupling between the linear surface modes supported by the array.
Qi
Xinyuan
X
Nonlinear Physics Centre and Laser Physics Centre, Research School of Physics and Engineering,Australian National University, Canberra, ACT 0200, Australia. qixycn@gmail.com
Garanovich
Ivan L
IL
Xu
Zhiyong
Z
Sukhorukov
Andrey A
AA
Krolikowski
Wieslaw
W
Mitchell
Arnan
A
Zhang
Guoquan
G
Neshev
Dragomir N
DN
Kivshar
Yuri S
YS