Efficient beam manipulation with Huygens-geometric metasurface supporting pure magnetic resonances

被引：1

作者：

Wang, Xiaosai ^{[1
]}

Cui, Ying ^{[1
]}

Liu, Bingyi ^{[1
]}

Jiang, Yongyuan ^{[1
,2
,3
,4
]}

机构：

[1] Harbin Inst Technol, Sch Phys, Harbin 150001, Peoples R China

[2] Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Peoples R China

[3] Key Lab Microopt & Photon Technol Heilongjiang Pr, Harbin 150001, Peoples R China

[4] Minist Ind & Informat Technol, Key Lab Micronano Optoelect Informat Syst, Harbin 150001, Peoples R China

来源：

JOURNAL OF APPLIED PHYSICS | 2022年 / 131卷 / 02期

基金：

中国国家自然科学基金;

关键词：

DIELECTRIC METASURFACE; METAMATERIAL; REFLECTION; LENS;

D O I：

10.1063/5.0077836

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In this work, we propose the concept of Huygens-geometric metasurface by stimulating two magnetic dipoles with designated phases. A theoretical model is developed to reveal its physical mechanism, and the required conditions for zero-backward scattering are derived. We verify the model with an anisotropic all-dielectric meta-atom, which is composed of a thin silica layer sandwiched by two silicon nanofins. The meta-atom with a maximum conversion efficiency of 98.8% and robust against the variation of the structural parameters can be applied in high-efficiency transmitted beam manipulation, such as beam deflection and focusing. Our work paves the way for the development of high-performance functional meta-devices.

引用

页数：10