unable multiband directional electromagnetic scattering from spoof Mie resonant structure
unable multiband directional electromagnetic scattering from spoof Mie resonant structure
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DOI：
10.1038/s41598-018-27268-6
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发表时间：
2018
影响因子：
4.6
通讯作者：
Yang Li
中科院分区：
文献类型：
--
作者：
Hong-wei Wu;Hua-jun Chen;Hua-feng Xu;Ren-hao Fan;Yang Li
We demonstrate that directional electromagnetic scattering can be realized in an artifcial Mie resonant.structure that supports electric and magnetic dipole modes simultaneously. The directivity of the farfeld radiation pattern can be switched by changing wavelength of the incident light as well as tailoring.the geometric parameters of the structure. In addition, we further design a quasiperiodic spoof Mie.resonant structure by alternately inserting two materials into the slits. The results show that multiband directional light scattering is realized by exciting multiple electric and magnetic dipole modes.with diferent frequencies in the quasiperiodic structure. The presented design concept is suitable for.microwave to terahertz region and can be applied to various advanced optical devices, such as antenna,.metamaterial and metasurface.
