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- W2015280459 abstract "We investigate the existence and stability of spatial optical solitons supported by cylindrical Bessel lattices in a competing cubic-quintic (CQ) nonlinear medium. Various families of solitons, including vortex, multipole, and necklace solitons are presented. Vortex solitons with unit topological charge are stabilized by CQ nonlinearity almost in their entire existence domain. There exists a power threshold necessary for the existence of these solitons. Comparing with the defocusing cubic case, the CQ nonlinearity broadens the profiles of the solitons, and also broadens their existence and stability domains. The dark core of vortex solitons can be enlarged by selecting the higher order lattice. Especially, we reveal that this model supports stable vortex solitons with broad intensity distributions and higher topological charges. We also show that stable multiring higher-order necklacelike solitons which cannot be found in other schemes are possible." @default.
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- W2015280459 date "2009-01-08" @default.
- W2015280459 modified "2023-09-25" @default.
- W2015280459 title "Bessel lattice solitons in competing cubic-quintic nonlinear media" @default.
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- W2015280459 doi "https://doi.org/10.1103/physreva.79.013807" @default.
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