Focusing and directional beaming effects of airborne sound through a planar lens with zigzag slits

Kun Tang; Chunyin Qiu; Jiuyang Lu; Manzhu Ke; Zhengyou Liu

doi:10.1063/1.4905910

Focusing and directional beaming effects of airborne sound through a planar lens with zigzag slits

Kun Tang, Chunyin Qiu, Jiuyang Lu, Manzhu Ke, Zhengyou Liu

Wuhan University

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

67 Scopus citations

Abstract

Based on the Huygens-Fresnel principle, we design a planar lens to efficiently realize the interconversion between the point-like sound source and Gaussian beam in ambient air. The lens is constructed by a planar plate perforated elaborately with a nonuniform array of zigzag slits, where the slit exits act as subwavelength-sized secondary sources carrying desired sound responses. The experiments operated at audible regime agree well with the theoretical predictions. This compact device could be useful in daily life applications, such as for medical and detection purposes.

Original language	English
Article number	024503
Journal	Journal of Applied Physics
Volume	117
Issue number	2
DOIs	https://doi.org/10.1063/1.4905910
State	Published - 14 Jan 2015
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2015 AIP Publishing LLC.

Funding

Funders	Funder number
National Natural Science Foundation of China	11174225, J1210061, 11374233, 11004155

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10.1063/1.4905910

Cite this

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AU - Qiu, Chunyin

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AU - Ke, Manzhu

AU - Liu, Zhengyou

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Focusing and directional beaming effects of airborne sound through a planar lens with zigzag slits

Abstract

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