Ultra-broadband and high-efficiency polarization conversion metasurface with multiple plasmon resonance modes  

作　　者：董果香 施宏宇 夏颂 李玮 张安学 徐卓 魏晓勇 

机构地区：[1]Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education & International Center for Dielectric Research,Xi'an Jiaotong University [2]School of Electronic and Information Engineering, Xi'an Jiaotong University

出　　处：《Chinese Physics B》2016年第8期158-162,共5页中国物理B（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.61471292,61331005,61471388,51277012,41404095,and 61501365);the 111 Project,China(Grant No.B14040);the National Basic Research Program of China(Grant No.2015CB654602);the China Postdoctoral Science Foundation(Grant No.2015M580849)

摘　　要：In this paper, we present a novel metasurface design that achieves a high-efficiency ultra-broadband cross polarization conversion. The metasurface is composed of an array of unit resonators, each of which combines an H-shaped structure and two rectangular metallic patches. Different plasmon resonance modes are excited in unit resonators and allow the polarization states to be manipulated. The bandwidth of the cross polarization converter is 82% of the central frequency,covering the range from 15.7 GHz to 37.5 GHz. The conversion efficiency of the innovative new design is higher than 90%.At 14.43 GHz and 40.95 GHz, the linearly polarized incident wave is converted into a circularly polarized wave.In this paper, we present a novel metasurface design that achieves a high-efficiency ultra-broadband cross polarization conversion. The metasurface is composed of an array of unit resonators, each of which combines an H-shaped structure and two rectangular metallic patches. Different plasmon resonance modes are excited in unit resonators and allow the polarization states to be manipulated. The bandwidth of the cross polarization converter is 82% of the central frequency,covering the range from 15.7 GHz to 37.5 GHz. The conversion efficiency of the innovative new design is higher than 90%.At 14.43 GHz and 40.95 GHz, the linearly polarized incident wave is converted into a circularly polarized wave.

关 键 词：POLARIZATION metasurface PLASMON ULTRA-BROADBAND 

分 类 号：O53[理学—等离子体物理]