All-optical Hall effect by the dynamic toroidal moment in a cavity-based metamaterial
All-optical Hall effect by the dynamic toroidal moment in a cavity-based metamaterial
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基于空腔的超材料中动态环形矩的全光霍尔效应
DOI：
10.1103/physrevb.87.245429
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发表时间：
2013-06-24
影响因子：
3.7
通讯作者：
Zhang, Xiang
中科院分区：
文献类型：
--
作者：
Dong, Zheng-Gao;Zhu, Jie;Zhang, Xiang
Dynamic dipolar toroidal response is demonstrated by an optical plasmonic metamaterial composed of double disks. This response with a hotspot of localized E-field concentration is a well-behaved toroidal cavity mode that exhibits a large Purcell factor due to its deep-subwavelength mode volume. All-optical Hall effect (photovoltaic) due to this optical toroidal moment is demonstrated numerically, in mimicking the magnetoelectric effect in multiferroic systems. The result shows a promising avenue to explore various optical phenomena associated with this intriguing dynamic toroidal moment.
