Broadband Polarization Manipulation Based on W-Shaped Metasurface
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TLDR
In this paper , a W-shaped metasurface consisting of resonators was proposed to realize broadband reflective linear and circular polarization conversions. But the authors did not consider the impact of the angle of incident waves on the conversion performance.Abstract:
We present a metasurface consisting of W-shaped resonators to realize broadband reflective linear and circular polarization conversions. We find that the cross polarization conversion ratio for normal incidence is over 0.95 from 9.2 to 18.7 GHz, covering 68.1% of the central frequency. We also show that, the conversion performance is almost insensitive to the angle of incident waves. Furthermore, by simply adjusting the geometrical parameters of the W-shaped metasurface, the broadband circular polarization conversion is also achieved. We emphasize that the bandwidth of axis ratio less than 3.0 dB covers from 10.1 to 17.7 GHz, equivalent to 54.7% relative bandwidth. Due to these broadband and high-efficiency polarization conversion features, our proposal may have a wide application prospect.read more
Citations
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Broadband and Dual-Polarized Terahertz Wave Anomalous Refraction Based on a Huygens’ Metasurface
TL;DR: In this paper , a broadband dual-polarized Huygens metasurface is proposed to realize high efficient terahertz wave anomalous refraction by constructing simultaneous electric and magnetic responses.
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All-dielectric metasurface for linear-polarization conversion with an arbitrary polarization rotating angle
TL;DR: In this paper , an all-dielectric metasurface linear-polarization converter composed of silicon diatomic nanopillar arrays is proposed, which can orient the linear polarization to arbitrary angles by changing the two orientation angles of the nanopillars.
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An electromagnetic modulator based on electrically controllable meta-molecule analogue to spontaneous emission cancellation
TL;DR: In this article , a miniaturized electromagnetic modulator based on electrically controllable spontaneous-emission cancellation-like (SEC-like) effect in meta-molecule is presented.
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