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Broken ring solitons in Bessel optical lattices

机译:贝塞尔光学晶格中的破环孤子

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摘要

We address the existence of ring solitons broken by several nodes in a defocusing saturable nonlinear medium with an imprinted Bessel optical lattice. Such a multipolelike soliton is composed of two or more arc patterns with opposite phase between the adjacent components. The width of existence domain is determined only by the saturation degree of medium. The maximum number of soliton components depends on the radius of the lattice ring, where they reside. Those novel solitons can be trapped entirely on any ring of the Bessel lattice provided that the lattice is modulated deep enough. This study offers a smooth transition from the multipole soliton to necklace soliton.
机译:我们解决了在一个散焦的可饱和非线性介质中,由一个刻有Bessel光学晶格的环孤子存在的问题,这些孤子被多个节点打破。这种多极状孤子由两个或多个在相邻组件之间具有相反相位的电弧图案组成。存在域的宽度仅取决于介质的饱和度。孤子分量的最大数量取决于它们所驻留的晶格环的半径。只要晶格被调制得足够深,这些新颖的孤子就可以完全捕获在贝塞尔晶格的任何环上。这项研究提供了从多极孤子到项链孤子的平稳过渡。

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