Asymmetric sound transmission in a passive non-blocking structure with multiple ports

Yi Fan Zhu; Zhong Ming Gu; Bin Liang; Jing Yang; Jun Yang; Lei Lei Yin; Jian Chun Cheng

doi:10.1063/1.4962435

Asymmetric sound transmission in a passive non-blocking structure with multiple ports

Yi Fan Zhu, Zhong Ming Gu, Bin Liang^*, Jing Yang, Jun Yang, Lei Lei Yin, Jian Chun Cheng

^*Corresponding author for this work

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

17 Citations (Scopus)

Abstract

We present the mechanism for breaking the symmetry in sound transmission between any two neighboring ports in a passive multi-port system. Numerical simulations and experimental measurements verify that by using judiciously designed metastructures to provide an extra wavevector without blocking the sound path, the propagating wave will travel along a preset direction at each port instead of splitting to both directions. We have also demonstrated the flexibility of this scheme to adjust the location of each port. Our design advances further the concept of one-way manipulation in passive two-port systems and may enable novel sound-steering devices for more versatile applications.

Original language	English
Article number	103504
Journal	Applied Physics Letters
Volume	109
Issue number	10
DOIs	https://doi.org/10.1063/1.4962435
Publication status	Published - Sept 5 2016
Externally published	Yes

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Publisher Copyright:
© 2016 Author(s).

ASJC Scopus Subject Areas

Physics and Astronomy (miscellaneous)

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abstract = "We present the mechanism for breaking the symmetry in sound transmission between any two neighboring ports in a passive multi-port system. Numerical simulations and experimental measurements verify that by using judiciously designed metastructures to provide an extra wavevector without blocking the sound path, the propagating wave will travel along a preset direction at each port instead of splitting to both directions. We have also demonstrated the flexibility of this scheme to adjust the location of each port. Our design advances further the concept of one-way manipulation in passive two-port systems and may enable novel sound-steering devices for more versatile applications.",

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AU - Gu, Zhong Ming

AU - Liang, Bin

AU - Yang, Jing

AU - Yang, Jun

AU - Yin, Lei Lei

AU - Cheng, Jian Chun

PY - 2016/9/5

Y1 - 2016/9/5

N2 - We present the mechanism for breaking the symmetry in sound transmission between any two neighboring ports in a passive multi-port system. Numerical simulations and experimental measurements verify that by using judiciously designed metastructures to provide an extra wavevector without blocking the sound path, the propagating wave will travel along a preset direction at each port instead of splitting to both directions. We have also demonstrated the flexibility of this scheme to adjust the location of each port. Our design advances further the concept of one-way manipulation in passive two-port systems and may enable novel sound-steering devices for more versatile applications.

AB - We present the mechanism for breaking the symmetry in sound transmission between any two neighboring ports in a passive multi-port system. Numerical simulations and experimental measurements verify that by using judiciously designed metastructures to provide an extra wavevector without blocking the sound path, the propagating wave will travel along a preset direction at each port instead of splitting to both directions. We have also demonstrated the flexibility of this scheme to adjust the location of each port. Our design advances further the concept of one-way manipulation in passive two-port systems and may enable novel sound-steering devices for more versatile applications.

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Asymmetric sound transmission in a passive non-blocking structure with multiple ports

Abstract

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