Asymmetric transmission of acoustic waves in a waveguide via gradient index metamaterials

Wen Kang Cao; Li Ting Wu; Cheng Zhang; Jun Chen Ke; Qiang Cheng; Tie Jun Cui; Yun Jing

doi:10.1016/j.scib.2019.01.002

Asymmetric transmission of acoustic waves in a waveguide via gradient index metamaterials

Wen Kang Cao, Li Ting Wu, Cheng Zhang, Jun Chen Ke, Qiang Cheng, Tie Jun Cui, Yun Jing

Graduate Program in Acoustics

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

30 Scopus citations

Abstract

We demonstrate that asymmetric acoustic wave transmission in a waveguide can be achieved via gradient index metamaterials (GIMs). We theoretically prove that the acoustic wave can be efficiently converted to surface waves (SWs) via GIMs. The GIMs in a waveguide can allow the transmission of acoustic waves in one direction but block them in the other direction. This theory is validated by experiments. Our findings may provide new applications in various scenarios such as high-efficiency acoustic couplers and noise control.

Original language	English (US)
Pages (from-to)	808-813
Number of pages	6
Journal	Science Bulletin
Volume	64
Issue number	12
DOIs	https://doi.org/10.1016/j.scib.2019.01.002
State	Published - Jun 30 2019

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10.1016/j.scib.2019.01.002

Cite this

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title = "Asymmetric transmission of acoustic waves in a waveguide via gradient index metamaterials",

abstract = "We demonstrate that asymmetric acoustic wave transmission in a waveguide can be achieved via gradient index metamaterials (GIMs). We theoretically prove that the acoustic wave can be efficiently converted to surface waves (SWs) via GIMs. The GIMs in a waveguide can allow the transmission of acoustic waves in one direction but block them in the other direction. This theory is validated by experiments. Our findings may provide new applications in various scenarios such as high-efficiency acoustic couplers and noise control.",

author = "Cao, {Wen Kang} and Wu, {Li Ting} and Cheng Zhang and Ke, {Jun Chen} and Qiang Cheng and Cui, {Tie Jun} and Yun Jing",

note = "Funding Information: This work was supported by the National Key Research and Development Program of China (2017YFA0700201, 2017YFA0700202, and 2017YFA0700203), the National Natural Science Foundation of China ( 61631007 , 61571117 , 61138001 , 61371035 , 61722106 , 61731010 and 11227904 ), and the 111 Project (111-2-05). Publisher Copyright: {\textcopyright} 2019 Science China Press",

year = "2019",

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doi = "10.1016/j.scib.2019.01.002",

language = "English (US)",

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T1 - Asymmetric transmission of acoustic waves in a waveguide via gradient index metamaterials

AU - Cao, Wen Kang

AU - Wu, Li Ting

AU - Zhang, Cheng

AU - Ke, Jun Chen

AU - Cheng, Qiang

AU - Cui, Tie Jun

AU - Jing, Yun

N1 - Funding Information: This work was supported by the National Key Research and Development Program of China (2017YFA0700201, 2017YFA0700202, and 2017YFA0700203), the National Natural Science Foundation of China ( 61631007 , 61571117 , 61138001 , 61371035 , 61722106 , 61731010 and 11227904 ), and the 111 Project (111-2-05). Publisher Copyright: © 2019 Science China Press

PY - 2019/6/30

Y1 - 2019/6/30

N2 - We demonstrate that asymmetric acoustic wave transmission in a waveguide can be achieved via gradient index metamaterials (GIMs). We theoretically prove that the acoustic wave can be efficiently converted to surface waves (SWs) via GIMs. The GIMs in a waveguide can allow the transmission of acoustic waves in one direction but block them in the other direction. This theory is validated by experiments. Our findings may provide new applications in various scenarios such as high-efficiency acoustic couplers and noise control.

AB - We demonstrate that asymmetric acoustic wave transmission in a waveguide can be achieved via gradient index metamaterials (GIMs). We theoretically prove that the acoustic wave can be efficiently converted to surface waves (SWs) via GIMs. The GIMs in a waveguide can allow the transmission of acoustic waves in one direction but block them in the other direction. This theory is validated by experiments. Our findings may provide new applications in various scenarios such as high-efficiency acoustic couplers and noise control.

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JF - Science Bulletin

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Asymmetric transmission of acoustic waves in a waveguide via gradient index metamaterials

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