Scholarlink

<p>Skyrmions are typical topological structures of vectorial texture that have emerged in quantum fields, magnetic systems, liquid crystals, and other contexts, showing great potential for applications in spintronics, data storage, and quantum computing. As the optical counterparts of topologically protected quasiparticles, optical skyrmions have a specific type of topological stability that skyrmion number is invariant upon light propagation in free space. Here, we demonstrate the topological state and skyrmion number transitions of two-dimensional (2D) optical skyrmions upon beam propagation in free space. By simultaneously tailoring the longitudinal intensity profiles of vortex and non-vortex Bessel components with orthogonal polarizations, 2D optical skyrmion transitions with controllable topological states and skyrmion numbers are observed in quasi-nondiffractive skyrmionic beams. Manipulating the field topologies may hold significant potential in applications related to information processing and transmission.</p><p></p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Topological state and number transitions of optical skyrmions upon free-space beam propagation

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年11月26日

查看全文
  • Xinhao Fan,
  • Xuanguang Wu,
  • Kang Ren,
  • Liang Zhou,
  • Xuyue Guo,
  • Bingyan Wei,
  • Yi Zhang,
  • Sheng Liu,
  • Peng Li,
  • Jianlin Zhao

摘要

Skyrmions are typical topological structures of vectorial texture that have emerged in quantum fields, magnetic systems, liquid crystals, and other contexts, showing great potential for applications in spintronics, data storage, and quantum computing. As the optical counterparts of topologically protected quasiparticles, optical skyrmions have a specific type of topological stability that skyrmion number is invariant upon light propagation in free space. Here, we demonstrate the topological state and skyrmion number transitions of two-dimensional (2D) optical skyrmions upon beam propagation in free space. By simultaneously tailoring the longitudinal intensity profiles of vortex and non-vortex Bessel components with orthogonal polarizations, 2D optical skyrmion transitions with controllable topological states and skyrmion numbers are observed in quasi-nondiffractive skyrmionic beams. Manipulating the field topologies may hold significant potential in applications related to information processing and transmission.