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- Liping Ye
- Wuhan University 1 Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education and School of Physics and Technology, , Wuhan 430072, China
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- Chunyin Qiu
- Wuhan University 1 Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education and School of Physics and Technology, , Wuhan 430072, China
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- Jiuyang Lu
- Wuhan University 1 Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education and School of Physics and Technology, , Wuhan 430072, China
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- Kun Tang
- Wuhan University 1 Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education and School of Physics and Technology, , Wuhan 430072, China
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- Han Jia
- State Key Laboratory of Acoustics and Key Laboratory of Noise and Vibration Research, Institute of Acoustics, Chinese Academy of Sciences 2 , Beijing 100190, China
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- Manzhu Ke
- Wuhan University 1 Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education and School of Physics and Technology, , Wuhan 430072, China
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- Shasha Peng
- Wuhan University 1 Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education and School of Physics and Technology, , Wuhan 430072, China
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- Zhengyou Liu
- Wuhan University 1 Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education and School of Physics and Technology, , Wuhan 430072, China
説明
<jats:p>Based on the Huygens-Fresnel principle, a metasurface structure is designed to generate a sound vortex beam in airborne environment. The metasurface is constructed by a thin planar plate perforated with a circular array of deep subwavelength resonators with desired phase and amplitude responses. The metasurface approach in making sound vortices is validated well by full-wave simulations and experimental measurements. Potential applications of such artificial spiral beams can be anticipated, as exemplified experimentally by the torque effect exerting on an absorbing disk.</jats:p>
収録刊行物
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- AIP Advances
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AIP Advances 6 (8), 2016-08-01
AIP Publishing