Physics – Optics
Scientific paper
2007-09-11
Physical Review A 76, 013831 (2007)
Physics
Optics
13 pages, 4 figures
Scientific paper
10.1103/PhysRevA.76.013831
We address soliton formation at the edge of chirped optical lattices imprinted in Kerr-type nonlinear media. We find families of power thresholdless surface waves that do not exist at other types of lattice interfaces. Such solitons form due to combined action of internal reflection at the interface, distributed Bragg-type reflection, and focusing nonlinearity. Remarkably, we discover that surfaces of chirped lattices are soliton attractors: Below an energy threshold, solitons launched well within the lattice self-bend toward the interface, and then stick to it.
Kartashov Yaroslav V.
Torner Lluis
Vysloukh Victor A.
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