空中骑兵
物理
等离子体子
等距
磁场
稳健性(进化)
解耦(概率)
拓扑(电路)
干扰(通信)
光学
凝聚态物理
计算机科学
量子力学
几何学
生物化学
基因
数学
组合数学
计算机网络
频道(广播)
工程类
控制工程
化学
作者
Zi‐Lan Deng,Tan Shi,Alex Krasnok,Xiangping Li,Andrea Alù
标识
DOI:10.1038/s41467-021-27710-w
摘要
Optical skyrmions have recently been constructed by tailoring vectorial near-field distributions through the interference of multiple surface plasmon polaritons, offering promising features for advanced information processing, transport and storage. Here, we provide experimental demonstration of electromagnetic skyrmions based on magnetic localized spoof plasmons (LSP) showing large topological robustness against continuous deformations, without stringent external interference conditions. By directly measuring the spatial profile of all three vectorial magnetic fields, we reveal multiple π-twist target skyrmion configurations mapped to multi-resonant near-equidistant LSP eigenmodes. The real-space skyrmion topology is robust against deformations of the meta-structure, demonstrating flexible skyrmionic textures for arbitrary shapes. The observed magnetic LSP skyrmions pave the way to ultra-compact and robust plasmonic devices, such as flexible sensors, wearable electronics and ultra-compact antennas.
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