物理
偶极子
谐振器
环面
太赫兹辐射
表面等离子体激元
等离子体子
掩蔽
共振(粒子物理)
极化子
微波食品加热
光电子学
表面等离子体子
超材料
原子物理学
等离子体
量子力学
作者
Ali Ahmed,Pengfei Qin,Er‐Ping Li
摘要
Abstract Recently, localized spoof surface plasmon polaritons (LSSPPs) have emerged as a new research frontier due to their unique properties and potential applications in integrated circuits. The toroidal dipole is a localized electromagnetic response different from electric and magnetic dipoles. Anapole is the nonradiating source produced by the interference between identical radiation patterns of toroidal and electric dipoles in the far field. This paper proposes a novel high Q ‐factor compact planar resonator consisting of split‐ring resonators to support the LSSPPs anapole at microwave frequency, which shows an apparent nonradiating charge–current configuration. In simulation and measurement, we observe the nonradiating property of the anapole mode. Further, we demonstrate that the LSSPPs anapole resonance has the tunable property, which is very sensitive to structural changes. These might lead to potential applications in the design of plasmonic deformation sensors, cloaking, and absorbers.
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