Broadband and stable acoustic vortex emitter with multi-arm coiling slits

Xue Jiang; Jiajun Zhao; Shi-lei Liu; Bin Liang; Xin-ye Zou; Jing Yang; Cheng-Wei Qiu; Jian-chun Cheng

doi:10.1063/1.4949337

Broadband and stable acoustic vortex emitter with multi-arm coiling slits

Xue Jiang, Jiajun Zhao, Shi-lei Liu, Bin Liang, Xin-ye Zou, Jing Yang, Cheng-Wei Qiu, Jian-chun Cheng

Computer, Electrical and Mathematical Sciences and Engineering

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

117 Scopus citations

Abstract

We present the analytical design and experimental realization of a scheme based on multi-arm coiling slits to generate the stable acoustic vortices in a broadband. The proposed structure is able to spiral the acoustic wave spatially and generate the twisted acoustic vortices with invariant topological charge for a long propagation distance. Compared with conventional methods which require the electronic control of a bulky loudspeaker, this scheme provides an effective and compact solution to generate acoustic vortices with controllable topological charge in the broadband, which offers more initiatives in the demanding applications.

Original language	English (US)
Pages (from-to)	203501
Journal	Applied Physics Letters
Volume	108
Issue number	20
DOIs	https://doi.org/10.1063/1.4949337
State	Published - May 16 2016

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This work was supported by the National Basic Research Program of China (973 Program) (Grant Nos. 2011CB707900 and 2012CB921504), National Natural Science Foundation of China (Grant Nos. 11174138, 11174139, 11222442, 81127901, and 11274168), NCET-12-0254, and a project funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions.

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https://repository.kaust.edu.sa/bitstream/10754/610558/1/1.4949337.pdf

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title = "Broadband and stable acoustic vortex emitter with multi-arm coiling slits",

abstract = "We present the analytical design and experimental realization of a scheme based on multi-arm coiling slits to generate the stable acoustic vortices in a broadband. The proposed structure is able to spiral the acoustic wave spatially and generate the twisted acoustic vortices with invariant topological charge for a long propagation distance. Compared with conventional methods which require the electronic control of a bulky loudspeaker, this scheme provides an effective and compact solution to generate acoustic vortices with controllable topological charge in the broadband, which offers more initiatives in the demanding applications.",

author = "Xue Jiang and Jiajun Zhao and Shi-lei Liu and Bin Liang and Xin-ye Zou and Jing Yang and Cheng-Wei Qiu and Jian-chun Cheng",

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AU - Jiang, Xue

AU - Zhao, Jiajun

AU - Liu, Shi-lei

AU - Liang, Bin

AU - Zou, Xin-ye

AU - Yang, Jing

AU - Qiu, Cheng-Wei

AU - Cheng, Jian-chun

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: This work was supported by the National Basic Research Program of China (973 Program) (Grant Nos. 2011CB707900 and 2012CB921504), National Natural Science Foundation of China (Grant Nos. 11174138, 11174139, 11222442, 81127901, and 11274168), NCET-12-0254, and a project funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions.

PY - 2016/5/16

Y1 - 2016/5/16

N2 - We present the analytical design and experimental realization of a scheme based on multi-arm coiling slits to generate the stable acoustic vortices in a broadband. The proposed structure is able to spiral the acoustic wave spatially and generate the twisted acoustic vortices with invariant topological charge for a long propagation distance. Compared with conventional methods which require the electronic control of a bulky loudspeaker, this scheme provides an effective and compact solution to generate acoustic vortices with controllable topological charge in the broadband, which offers more initiatives in the demanding applications.

AB - We present the analytical design and experimental realization of a scheme based on multi-arm coiling slits to generate the stable acoustic vortices in a broadband. The proposed structure is able to spiral the acoustic wave spatially and generate the twisted acoustic vortices with invariant topological charge for a long propagation distance. Compared with conventional methods which require the electronic control of a bulky loudspeaker, this scheme provides an effective and compact solution to generate acoustic vortices with controllable topological charge in the broadband, which offers more initiatives in the demanding applications.

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JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 20

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Broadband and stable acoustic vortex emitter with multi-arm coiling slits

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