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

Xue Jiang | Zendy; Jiajun Zhao | Zendy; Shilei Liu | Zendy; Bin Liang | Zendy; XinYe Zou | Zendy; Yuzhen Yang | Zendy; ChengWei Qiu | Zendy; JianChun Cheng | Zendy

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

Author(s) -

Xue Jiang,

Jiajun Zhao,

Shilei Liu,

Bin Liang,

XinYe Zou,

Yuzhen Yang,

ChengWei Qiu,

JianChun Cheng

Publication year - 2016

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.4949337

Subject(s) - broadband , vortex , topological quantum number , acoustics , loudspeaker , physics , realization (probability) , acoustic wave , optics , mathematics , mechanics , statistics , quantum mechanics

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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