Observation of two-dimensional defect surface solitons

Details Observation of two-dimensional defect surface solitons Observation of two-dimensional defect surface solitons

2009-01-31

arxiv.org/abs/0902.0060v1

Optics Letters 34, 797 (2009)

Physics

Optics

13 pages, 4 figures, to appear in Optics Letters

Scientific paper

10.1364/OL.34.000797

We report on the experimental observation of two-dimensional solitons located in a defect channel at the surface of a hexagonal waveguide array. The threshold power for the excitation of defect surface solitons existing due to total internal reflection grows with decrease of the refractive index in negative defects and vanishes for sufficiently strong positive defects. Negative defects can also support linear surface modes existing due to Bragg-type reflections.

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