ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS |
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Generation of orbital angular momentum and focused beams with tri-layer medium metamaterial |
Zhi-Chao Sun(孙志超), Meng-Yao Yan(闫梦瑶), and Bi-Jun Xu(徐弼军)† |
1 School of Sciences, Zhejiang University of Science and Technology, Hangzhou 310023, China |
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Abstract We propose a metal/dielectric tri-layer metamaterial for wavefront shaping. By arranging the element in an array with a constant phase gradient and irradiated it with a plane wave, focused and focused vortex beams can be obtained. The designed metamaterial features the excellent capability of focused/focused vortex beams generation within the operating frequency range of 30 GHz–34 GHz. The simulation results are consistent with the theoretical analyses.
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Received: 10 May 2020
Revised: 08 June 2020
Accepted manuscript online: 01 August 2020
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PACS:
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41.20.Jb
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(Electromagnetic wave propagation; radiowave propagation)
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42.25.Bs
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(Wave propagation, transmission and absorption)
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92.60.Ta
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(Electromagnetic wave propagation)
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Corresponding Authors:
†Corresponding author. E-mail: xubijun@zust.edu.cn
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About author: †Corresponding author. E-mail: xubijun@zust.edu.cn * Project supported by the Natural Science Foundation of Zhejiang Province, China (Grant No. LY20F050001). |
Cite this article:
Zhi-Chao Sun(孙志超), Meng-Yao Yan(闫梦瑶), and Bi-Jun Xu(徐弼军)† Generation of orbital angular momentum and focused beams with tri-layer medium metamaterial 2020 Chin. Phys. B 29 104101
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