Building ideal paraxial optical skyrmions using rational maps

Building ideal paraxial optical skyrmions using rational maps
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使用有理图构建理想的近轴光学斯格明子

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发表时间:
2022
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通讯作者:
C. Ross
C. Ross
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作者:
C. Cisowski;S. Franke;C. Ross

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我们引入了一个基于有理映射的简单数学表达式来构造理想的傍轴光学skyrmion场,包括N'eel型和Bloch型skyrmion,反skyrmion,双分子和多skyrmion,包括skyrmion晶格。我们审查的规则,完全偏振的傍轴光场必须遵守被认为是光学skyrmions。这项工作提供了一般skyrmion场的实验生成的指导方针,超越传统的单skyrmion梁。这为探索多skyrmions场的成核和湮灭机制奠定了基础。
We introduce a simple mathematical expression based on rational maps to construct ideal paraxial optical skyrmions fields including N´eel-type and Bloch-type skyrmions, anti-skyrmions, bimerons and multi-skyrmions, including skyrmion lattices. We review the rules that fully polarized paraxial light fields must obey to be considered as optical skyrmions. This work provides guidelines for the experimental generation of general skyrmion fields, beyond conventional single skyrmion beams. This lays the foundation for the exploration of nucleation and annihilation mechanisms in multi-skyrmions fields.