Cylindrical holographic impedance metasurface for OAM vortex wave generation

In this Letter, we present a cylindrical conformal holographic impedance metasurface for orbital angular momentum (OAM) generation. The conformal holographic metasurface is designed by establishing the element library and deducing the formula of holographic tensor impedance modulation. The feasibili...

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Bibliographic Details
Published in:Applied physics letters 2022-04, Vol.120 (14)
Main Authors: Wang, Heng, Yu, Shixing, Kou, Na, Ding, Zhao, Zhang, Zhengping
Format: Article
Language:English
Subjects:
Angular momentum
Applied physics
Holography
Impedance
Metasurfaces
Tensors
Vortices
Wave generation
Wave power
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Summary:In this Letter, we present a cylindrical conformal holographic impedance metasurface for orbital angular momentum (OAM) generation. The conformal holographic metasurface is designed by establishing the element library and deducing the formula of holographic tensor impedance modulation. The feasibility of the scheme is verified by simulations and experiments. Simulated and experimental results are in good agreement with theoretical analysis. The results show that OAM vortex wave energy can be generated efficiently by a cylindrical conformal impedance metasurface, which can provide a reference for OAM communication and vortex radars with conformal devices.
ISSN:0003-6951
1077-3118
DOI:10.1063/5.0082907