Dual-band polarization conversion based on non-twisted Q-shaped metasurface

被引：14
|
作者：
Cao, Hailin [1 ,2 ]
Liang, Jianshuo [1 ]
Wu, Xiaodong [1 ]
Pi, Yuwei [1 ]
Xu, Hang [1 ]
Liu, Junjie [1 ]
Meng, Zhenya [1 ]
Zhang, Yongliang [3 ]
机构：
[1] Chongqing Univ, Key Lab Aerocraft Tracking Telemetering & Command, Minist Educ, Chongqing 400044, Peoples R China
[2] Chongqing Univ, State Key Lab Power Transmiss Equipment & Syst Se, Chongqing 630044, Peoples R China
[3] Chinese Acad Sci, Tech Inst Phys & Chem, Beijing 100190, Peoples R China
来源：
OPTICS COMMUNICATIONS | 2016年 / 370卷
基金：
中国国家自然科学基金;
关键词：
Metamaterial; Circular polarizer; Linear birefringence; Polarization; NEGATIVE REFRACTIVE-INDEX; CIRCULAR POLARIZER; CHIRAL METAMATERIAL; HELICAL METAMATERIALS; OPTICAL-ACTIVITY; DICHROISM;
D O I：
10.1016/j.optcom.2016.03.036
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this paper, we theoretically and experimentally report an achiral dual-band metasurface with linear birefringence. The unit cell of the achiral metasurface consists of non-twisted Q-shape metallic ring resonators with a stub breaking the rotational symmetry. Moreover, due to the presence of the stub, we find the proposed metasurface emits dual-band circularly polarized wave with low transmission loss and high polarization extinction for a normal incident y-direction linearly polarized wave. We also systematically investigate the dependence of the electromagnetic response of the proposed structure on the geometric parameters. It is hoped that the proposed simple, easily fabricated model of achiral meta surface can be used in further polarization control applications (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：311 / 318
页数：8
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