Making acoustic half-Bessel beams with metasurfaces

Kun Tang; Yuanzhuo Hong; Chunyin Qiu; Shasha Peng; Manzhu Ke; Zhengyou Liu

doi:10.7567/jjap.55.110302

Making acoustic half-Bessel beams with metasurfaces

Kun Tang, Yuanzhuo Hong, Chunyin Qiu, Shasha Peng, Manzhu Ke, Zhengyou Liu

Wuhan University

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

Unlike the well-known Airy beams that can be deformed beyond paraxial angles, the half-Bessel (HB) Beams can bend to steeper angles. Here we propose an effective metasurface design for constructing two-dimensional acoustic HB beams. The design is based on an array of spatially varied coiling-slit units, each of which mimics the wave responses derived from the analytical expression of the acoustic HB beam. A tradeoff method is utilized here to simplify the variable amplitude responses. The full-wave simulations and experimental measurements consistently manifest the effectiveness of this design process. Potential applications, such as the large-angle bending transport of particles, can be anticipated.

Original language	English
Article number	110302
Journal	Japanese Journal of Applied Physics
Volume	55
Issue number	11
DOIs	https://doi.org/10.7567/jjap.55.110302
State	Published - Nov 2016
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2016 The Japan Society of Applied Physics.

Funding

This work is supported by the National Basic Research Program of China (Grant No. 2015CB755500); National Natural Science Foundation of China (Grant Nos. 11504275, 11374233, 11534013, and 11574233).

Funders	Funder number
National Natural Science Foundation of China	11374233, 11574233, 11534013, 11504275
National Key Research and Development Program of China	2015CB755500

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title = "Making acoustic half-Bessel beams with metasurfaces",

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AU - Hong, Yuanzhuo

AU - Qiu, Chunyin

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AU - Ke, Manzhu

AU - Liu, Zhengyou

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Y1 - 2016/11

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AB - Unlike the well-known Airy beams that can be deformed beyond paraxial angles, the half-Bessel (HB) Beams can bend to steeper angles. Here we propose an effective metasurface design for constructing two-dimensional acoustic HB beams. The design is based on an array of spatially varied coiling-slit units, each of which mimics the wave responses derived from the analytical expression of the acoustic HB beam. A tradeoff method is utilized here to simplify the variable amplitude responses. The full-wave simulations and experimental measurements consistently manifest the effectiveness of this design process. Potential applications, such as the large-angle bending transport of particles, can be anticipated.

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Making acoustic half-Bessel beams with metasurfaces

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