Design of plasmonic toroidal metamaterials at optical frequencies

Yao Wei Huang, Wei Ting Chen, Pin Chieh Wu, Vassili Fedotov, Vassili Savinov, You Zhe Ho, Yuan Fong Chau, Nikolay I. Zheludev, Din Ping Tsai

研究成果: Article同行評審

144 引文 斯高帕斯(Scopus)


Toroidal multipoles are the subject of growing interest because of their unusual electromagnetic properties different from the electric and magnetic multipoles. In this paper, we present two new related classes of plasmonic metamaterial composed of purposely arranged of four U-shaped split ring resonators (SRRs) that show profound resonant toroidal responses at optical frequencies. The toroidal and magnetic responses were investigated by the finite-element simulations. A phenomenon of reversed toroidal responses at higher and lower resonant frequencies has also been reported between this two related metamaterials which results from the electric and magnetic dipoles interaction. Finally, we propose a physical model based on coupled LC circuits to quantitatively analyze the coupled system of the plasmonic toroidal metamaterials.

頁(從 - 到)1760-1768
期刊Optics Express
出版狀態Published - 2012 1月 16

All Science Journal Classification (ASJC) codes

  • 原子與分子物理與光學


深入研究「Design of plasmonic toroidal metamaterials at optical frequencies」主題。共同形成了獨特的指紋。