An Acoustic Metamaterial Lens for Acoustic Point-to-Point Communication in Air

Acoustic metamaterials have become a novel and effective way to control sound waves and design acoustic devices. In this study, we design a 3D acoustic metamaterial lens (AML) to achieve point-to-point acoustic communication in air: any acoustic source (a speaker) in air enclosed by such an AML can...

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Bibliographic Details
Published inAcoustical physics Vol. 65; no. 1; pp. 1 - 6
Main Authors Fei Sun, Guo, Shuwei, Li, Borui, Liu, Yichao, He, Sailing
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 2019
Springer Nature B.V
Subjects
acoustic metamaterials
Acoustics
Classical Problems of Linear Acoustics and Wave Theory
Computer simulation
Eaton lens
focusing
Metamaterials
Physics
Physics and Astronomy
Sound waves
acoustic metamaterials
Eaton lens
focusing
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Summary:Acoustic metamaterials have become a novel and effective way to control sound waves and design acoustic devices. In this study, we design a 3D acoustic metamaterial lens (AML) to achieve point-to-point acoustic communication in air: any acoustic source (a speaker) in air enclosed by such an AML can produce an acoustic image where the acoustic wave is focused (the field intensity is at a maximum, and the listener can receive the information), while the acoustic field at other spatial positions is low enough that listeners can hear almost nothing. Unlike a conventional elliptical reflective mirror, the acoustic source can be moved around inside our proposed AML. Numerical simulations are given to verify the performance of the proposed AML.
ISSN:1063-7710
1562-6865
1562-6865
DOI:10.1134/S1063771019010111