Bandwidth broadening of a linear polarization converter by near-field metasurface coupling.
Bandwidth broadening of a linear polarization converter by near-field metasurface coupling.
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通过近场超表面耦合拓宽线性偏振转换器的带宽
DOI:
10.1038/s41598-017-07296-4
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发表时间:
2017-07-28
影响因子:
4.6
通讯作者:
Zhang W
中科院分区:
文献类型:
--
作者:
Gao X;Singh L;Yang W;Zheng J;Li H;Zhang W
We experimentally demonstrate a highly efficient, broadband linear polarization converter functioning at terahertz frequencies. The linear polarization converter is composed of three metasurfaces and two dielectric layers interlaced with each other. The neighboring unit cells of the central metasurface layer of the linear polarization converter exhibit strong electromagnetic coupling, which increases the number of resonances and results in significant bandwidth broadening. The simulation and experimental results show that in the frequency range of 0.2 to 0.4 THz, the proposed polarization converter has a flat transmission curve and exhibits a transmission efficiency that is higher than 80%. High performance terahertz polarization conversion is desirable in many fields, such as terahertz spectroscopy, imaging, and communications.
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影响因子:
3.8
作者:
Xu, J.;Li, T.;Zhu, S. N.
通讯作者:
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影响因子:
8.6
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通讯作者:
Soukoulis, Costas M.
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作者:
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通讯作者:
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56.9
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通讯作者:
Gaburro, Zeno
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作者:
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通讯作者:
Mastrangelo, Carlos H.