Stable structures with high topological charge in nonlinear photonic quasicrystals

Details Stable structures with high topological charge in nonlinear photonic quasicrystals Stable structures with high topological charge in nonlinear photonic quasicrystals

2010-03-14

arxiv.org/abs/1003.2779v2

Nonlinear Sciences

Pattern Formation and Solitons

Scientific paper

Stable vortices with topological charge of 3 and 4 are examined numerically and analytically in photonic quasicrystals created by interference of 5 as well as 8 beams, in the cases of cubic as well as saturable nonlinearities. These structures are experimentally realizable, including a prototypical example of a stable charge 4 vortex. Direct numerical simulations corroborate the analytical and numerical linear stability analysis predictions.

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