Localized Plasmonic Vortex Printing Technology Based on the Metaparticle and Spoof Surface Plasmon Polaritons,Physica Status Solidi (A) - Applications and Materials Science

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Localized Plasmonic Vortex Printing Technology Based on the Metaparticle and Spoof Surface Plasmon Polaritons
Physica Status Solidi (A) - Applications and Materials Science Pub Date : 2021-02-02 , DOI: 10.1002/pssa.202000708
Li Yuan _{1,

2} , Jun Wang _{1,

3} , Shiji Wang ₄ , Xiaolong Li ₄ , Jian Fei Han ₅ , Xiao Peng Shen ₅ , Zhang-Cheng Hao ₃ , Lei Zhao _{1,

2}

Affiliation

Plasmonic structures based on Archimedes spiral (AS) architectures have attracted great interest to generate plasmonic vortices (PVs) carrying controllable orbital angular momentum (OAM). Recently, researches based on the single deep‐subwavelength metaparticle have provided various methods to realize PVs. However, most of the PVs structures just realize single topological charge and only a few works have implemented vortex waves with multiple topological charges. Hence, it is still a big challenge to excite localized electromagnetic (EM) vortices with multimodal topological charges in single structure simultaneously. A potential design idea to create localized EM vortices with multimodal topological charges in single structure is proposed, which is called the printing technology for localized PVs. Taking advantages of the coplanar waveguide‐based spoof surface plasmon polaritons (CPW‐based SSPPs), localized multiple PVs modes that are strongly confined in the metaparticles can be excited simultaneously. The physical explanations and experiments are conducted to confirm this unique phenomenon. This localized PVs printing technology may be used for future microwave integrated elements and devices operating.

中文翻译：

基于超粒子和恶性表面等离激元极化子的局部等离激元涡旋印刷技术

基于阿基米德螺旋（AS）体系结构的等离激元结构引起了人们的极大兴趣，以产生携带可控轨道角动量（OAM）的等离激元涡（PVs）。最近，基于单个深亚波长超微粒的研究提供了多种实现PV的方法。但是，大多数PV结构仅实现单个拓扑电荷，只有很少的工作实现了具有多个拓扑电荷的涡旋波。因此，在单个结构中同时激发具有多峰拓扑电荷的局域电磁（EM）涡旋仍然是一个很大的挑战。提出了一种潜在的设计思想，即在单个结构中创建具有多峰拓扑电荷的局部EM涡流，这被称为局部PV的打印技术。利用基于共面波导的欺骗表面等离子体激元极化子（CPW-SSPPs）的优势，可以同时激发在超微粒中局限的局部多个PVs模式。进行了物理解释和实验，以确认这一独特现象。这种本地化的PVs打印技术可用于未来的微波集成元件和设备的操作。

更新日期：2021-02-02

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