Broadband perfect polarization conversion metasurfaces

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 a...

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Bibliographic Details
Published in:Chinese physics B 2015, Vol.24 (1), p.253-257
Main Author: 陈红雅 王甲富 马华 屈绍波 张介秋 徐卓 张安学
Format: Article
Language:English
Subjects:
Asymmetry
Bandwidth
Broadband
Conversion
Conversion ratio
Magnetic resonance
PCR
Plasmons
Polarization
偏振光
垂直入射
宽带
控制装置
极化
等离子体共振
高带宽
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Summary: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.
ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/24/1/014201