Huygens' metasurface made of core-shell spherical nanoparticles

被引：2
|
作者：
Chen, Xiaolin [1 ]
Yao, Peijun [1 ]
机构：
[1] Univ Sci & Technol China, Dept Opt & Opt Engn, Hefei 230026, Anhui, Peoples R China
来源：
METAMATERIALS, METADEVICES, AND METASYSTEMS 2018 | 2018年 / 10719卷
基金：
中国国家自然科学基金;
关键词：
Huygens' metasurfaces; nanoparticles; Mie dipole resonances; dyadic Green function; scattering directionality; Mie theory; superscattering; high refractive indices; SCATTERING;
D O I：
10.1117/12.2320197
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this work, we combine the plasmonic material with high index dielectric to design a metasurface. With the dyadic Green function and coupled-dipole approach, a Huygens' metasurface is obtained by two dimensional array of subwavelength Ag core-Si shell nanoparticles, the transmission efficiency is close to unity in a broadband spectrum, and the reflection is completely eliminated by spectrally overlapping the magnetic dipole resonance with the electric dipole resonance. The designed high transmitted Huygens' metasurface can be applied to wavefront shaping and beam forming.
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收藏
页数：6
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