Abstract
We derive scalar and vector multipole and vortex soliton solutions in the spatially modulated cubic–quintic nonlinear media, which is governed by a (3+1)-dimensional N-coupled cubic–quintic nonlinear Schrödinger equation with spatially modulated nonlinearity and transverse modulation. If the modulation depth \(q=1\), the vortex soliton is constructed, and if \(q=0\), the multipole soliton, including dipole, quadrupole, hexapole, octopole and dodecagon solitons, is constructed, respectively, when the topological charge \(k=1\)–5. If the topological charge \(k=0\), scalar solitons can be obtained. Moreover, the number of layers for the scalar and vector multipole and vortex solitons is decided by the value of the soliton order number n.
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Acknowledgements
This work was supported by the National Natural Science Foundation of China (11781240085 and 11747148), the Program for Science & Technology Innovation Talents in Universities of Henan Province (18HASTIT032), and the High-level Talents Research and Startup Foundation Projects for Doctors of Zhoukou Normal University (zknu2014120).
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Li, Jt., Zhu, Y., Han, Jz. et al. Scalar and vector multipole and vortex solitons in the spatially modulated cubic–quintic nonlinear media. Nonlinear Dyn 91, 757–765 (2018). https://doi.org/10.1007/s11071-017-3744-2
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DOI: https://doi.org/10.1007/s11071-017-3744-2