Active control of membrane-type acoustic metamaterial by electric field

Songwen Xiao; Guancong Ma; Yong Li; Zhiyu Yang; Ping Sheng

doi:10.1063/1.4913999

Active control of membrane-type acoustic metamaterial by electric field

Songwen Xiao
, Guancong Ma
, Yong Li
, Zhiyu Yang^*
, Ping Sheng

^*Corresponding author for this work

Department of Physics

Research output: Contribution to journal › Journal article › peer-review

189 Citations (Scopus)

Abstract

By employing a metal-coated central platelet and a rigid mesh electrode which is transparent to acoustic wave, we show that the membrane-type acoustic metamaterials (MAMs) can be easily tuned by applying an external voltage. With static voltage, the MAM's eigenfrequencies and therefore the phase of the transmitted wave are tunable up to 70 Hz. The MAM's vibration can be significantly suppressed or enhanced by using phase-matched AC voltage. Functionalities such as phase modulation and acoustic switch with on/off ratio up to 21.3 dB are demonstrated.

Original language	English
Article number	091904
Number of pages	4
Journal	Applied Physics Letters
Volume	106
Issue number	9
DOIs	https://doi.org/10.1063/1.4913999
Publication status	Published - 2 Mar 2015

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10.1063/1.4913999

Cite this

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title = "Active control of membrane-type acoustic metamaterial by electric field",

abstract = "By employing a metal-coated central platelet and a rigid mesh electrode which is transparent to acoustic wave, we show that the membrane-type acoustic metamaterials (MAMs) can be easily tuned by applying an external voltage. With static voltage, the MAM's eigenfrequencies and therefore the phase of the transmitted wave are tunable up to 70 Hz. The MAM's vibration can be significantly suppressed or enhanced by using phase-matched AC voltage. Functionalities such as phase modulation and acoustic switch with on/off ratio up to 21.3 dB are demonstrated.",

author = "Songwen Xiao and Guancong Ma and Yong Li and Zhiyu Yang and Ping Sheng",

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T1 - Active control of membrane-type acoustic metamaterial by electric field

AU - Xiao, Songwen

AU - Ma, Guancong

AU - Li, Yong

AU - Yang, Zhiyu

AU - Sheng, Ping

N1 - Publisher Copyright: © 2015 AIP Publishing LLC. Funding Information: Financial support for this work by HKUST 605212, HKUST2/CRF/11G, and AoE/P-02/12 from the Hong Kong SAR Government is gratefully acknowledged.

PY - 2015/3/2

Y1 - 2015/3/2

N2 - By employing a metal-coated central platelet and a rigid mesh electrode which is transparent to acoustic wave, we show that the membrane-type acoustic metamaterials (MAMs) can be easily tuned by applying an external voltage. With static voltage, the MAM's eigenfrequencies and therefore the phase of the transmitted wave are tunable up to 70 Hz. The MAM's vibration can be significantly suppressed or enhanced by using phase-matched AC voltage. Functionalities such as phase modulation and acoustic switch with on/off ratio up to 21.3 dB are demonstrated.

AB - By employing a metal-coated central platelet and a rigid mesh electrode which is transparent to acoustic wave, we show that the membrane-type acoustic metamaterials (MAMs) can be easily tuned by applying an external voltage. With static voltage, the MAM's eigenfrequencies and therefore the phase of the transmitted wave are tunable up to 70 Hz. The MAM's vibration can be significantly suppressed or enhanced by using phase-matched AC voltage. Functionalities such as phase modulation and acoustic switch with on/off ratio up to 21.3 dB are demonstrated.

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DO - 10.1063/1.4913999

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VL - 106

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 9

M1 - 091904

ER -

Active control of membrane-type acoustic metamaterial by electric field

Abstract

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