Observation of two-dimensional surface solitons in anisotropic waveguide arrays
arXiv:0704.3837 · doi:10.1103/PhysRevLett.98.173903
Abstract
We report on the experimental observation of two-dimensional surface waves localized at the edge or in the corner of femtosecond laser-written waveguide arrays in fused silica. Increasing the power of the input beam allows one to observe a clear transition from a linear diffraction pattern to localized nonlinear surface states, which can exist at the interface only above a certain power threshold.
13 pages, 4 figures
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