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An Arbitrary Linear THz Wave Polarization Converter with Cracked Cross Meta-surface

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摘要

This paper presents a double layer structure combined with cracked cross meta-surface and grating surface to realize arbitrary incident linear THz wave polarization conversion. The arbitrary incident linear polarization THz wave will be induced the same resonant modes in the unit-cell, which results in polarization conversion insensitive to the linear polarized angel. Moreover, the zigzag-shaped resonant surface current leads to a strong magnetic resonance between the meta-surface and gratings, which enhanced the conversion efficiency. The experimental results show more than 70% conversion rate can be achieved under arbitrary linear polarized within a wide frequency band. Moreover, around 0.89THz nearly perfect polarization conversion is realized.

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作者单位:

    University of Electronic Science and Technology of China
    University of Electronic Science and Technology of China
     National Key Laboratory of Application Specific Integrated Circuit
    Key Laboratory of Optoelectronic Information Technology

引用该论文

Sun Han,wang Lan,Zhang Yaxin,Liang Shixiong,Han Jiaguang,Lan Feng,Zhou Xinlan,Yang Ziqiang. An Arbitrary Linear THz Wave Polarization Converter with Cracked Cross Meta-surface[J].Chinese Optics Letters,2019,17(4):04.