Abstract We propose a novel metasurface based on a combined pattern of outer C-shaped ring and inner rectangular ring. By Fourier convolution operation to generating different predesigned sequences of metasurfaces, we realize various functionalities to flexible manipulate terahertz waves including vortex terahertz beam splitting, anomalous vortex terahertz wave deflection, vortex terahertz wave splitting and deflection simultaneously. The incident terahertz wave can be flexibly controlled in a single metasurface. The designed metasurface has an extensive application prospect in the field of future terahertz communication and sensing.
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos.61871355 and 61831012),the Talent Project of Zhejiang Provincial Department of Science and Technology (Grant No.2018R52043),and the Research Funds for Universities of Zhejiang Province,China (Grant Nos.2020YW20 and 2021YW86).
Min Zhong(仲敏) and Jiu-Sheng Li(李九生) Multi-function terahertz wave manipulation utilizing Fourier convolution operation metasurface 2022 Chin. Phys. B 31 054207
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