Broadband perfect polarization conversion metasurfaces  

作　　者：陈红雅 王甲富 马华 屈绍波 张介秋 徐卓 张安学 

机构地区：[1]College of Science, Air Force Engineering University [2]Electronic Materials Research Laboratory, Xi’an Jiaotong University [3]School of Electronics & Information Engineering, Xi’an Jiaotong University

出　　处：《Chinese Physics B》2015年第1期253-257,共5页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos.61331005,11204378,11274389,11304393,and 61302023);the National Science Foundation for Post-doctoral Scientists of China(Grant Nos.2013M532131 and 2013M532221);the Natural Science Foundation of Shaanxi Province,China(Grant No.2013JM6005);the Aviation Science Foundation of China(Grant Nos.20132796018 and 20123196015)

摘　　要：We propose a broadband perfect polarization conversion metasurface composed of copper sheet-backed asymmetric double spilt ring resonator（DSRR）. The broadband perfect polarization convertibility results from metallic ground and multiple plasmon resonances of the DSRR. Physics of plasmon resonances are governed by the electric and magnetic resonances. Both the simulation and measured results show that the polarization conversion ratio（PCR） is higher than 99%for both x- and y-polarized normally incident EM waves and the fractional bandwidth is about 34.5%. The metasurface possesses the merits of high PCR and broad bandwidth, and thus has great application values in novel polarization-control devices.We propose a broadband perfect polarization conversion metasurface composed of copper sheet-backed asymmetric double spilt ring resonator（DSRR）. The broadband perfect polarization convertibility results from metallic ground and multiple plasmon resonances of the DSRR. Physics of plasmon resonances are governed by the electric and magnetic resonances. Both the simulation and measured results show that the polarization conversion ratio（PCR） is higher than 99%for both x- and y-polarized normally incident EM waves and the fractional bandwidth is about 34.5%. The metasurface possesses the merits of high PCR and broad bandwidth, and thus has great application values in novel polarization-control devices.

关 键 词：metasurface perfect polarization conversion multiple plasmon resonances 

分 类 号：O53[理学—等离子体物理] O441[理学—物理]