Anisotropic Metamaterials for Transformation Acoustics and Imaging

Jensen Li; Zixian Liang; Jie Zhu; Xiang Zhang

doi:10.1007/978-3-031-60015-9_7

Anisotropic Metamaterials for Transformation Acoustics and Imaging

Jensen Li^*
, Zixian Liang
, Jie Zhu
, Xiang Zhang

^*Corresponding author for this work

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 12 - Chapter in an edited book (Author) › peer-review

1 Citation (Scopus)

Abstract

Metamaterials are becoming a prominent class of artificial materials that allow us to have very precise and specific optical properties. Its associated engineering flexibility opens up a wide range of applications and provides an effective route in molding the flow of energy. By drawing analogies between electromagnetic and acoustic wave frameworks, many concepts like invisibility cloaking and subwavelength imaging can be transplanted from electromagnetic to acoustic waves easily. However, we need quite different ways of constructing the artificial materials and devices for acoustics. Here, we show how anisotropic metamaterials can be constructed to control the constitutive parameters of the effective medium through positioning hard plates in different preferred directions. We will then use them to construct an acoustic carpet cloak, an acoustic hyperlens and a superlens as examples. © Springer Nature Switzerland AG 2024.

Original language	English
Title of host publication	Acoustic Metamaterials
Subtitle of host publication	Absorption, Cloaking, Imaging, Time-Modulated Media, and Topological Crystals
Editors	Richard Craster, Sébastien Guenneau
Place of Publication	Cham
Publisher	Springer
Pages	185-212
ISBN (Electronic)	978-3-031-60015-9
ISBN (Print)	978-3-031-60014-2, 978-3-031-60017-3
DOIs	https://doi.org/10.1007/978-3-031-60015-9_7
Publication status	Published - 2024

Publication series

Name	Springer Series in Materials Science
Volume	345
ISSN (Print)	0933-033X
ISSN (Electronic)	2196-2812

Funding

JL and ZL thank the support from the City University of Hong Kong (SRG grant number 7002598). JZ and XZ acknowledge support from the Office of Naval Research (grant number N00014-07-1-0626).

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10.1007/978-3-031-60015-9_7

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Li, J., Liang, Z., Zhu, J., & Zhang, X. (2024). Anisotropic Metamaterials for Transformation Acoustics and Imaging. In R. Craster, & S. Guenneau (Eds.), Acoustic Metamaterials: Absorption, Cloaking, Imaging, Time-Modulated Media, and Topological Crystals (pp. 185-212). (Springer Series in Materials Science; Vol. 345). Springer . https://doi.org/10.1007/978-3-031-60015-9_7

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Anisotropic Metamaterials for Transformation Acoustics and Imaging. / Li, Jensen; Liang, Zixian; Zhu, Jie et al.
Acoustic Metamaterials: Absorption, Cloaking, Imaging, Time-Modulated Media, and Topological Crystals. ed. / Richard Craster; Sébastien Guenneau. Cham: Springer , 2024. p. 185-212 (Springer Series in Materials Science; Vol. 345).

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 12 - Chapter in an edited book (Author) › peer-review

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AB - Metamaterials are becoming a prominent class of artificial materials that allow us to have very precise and specific optical properties. Its associated engineering flexibility opens up a wide range of applications and provides an effective route in molding the flow of energy. By drawing analogies between electromagnetic and acoustic wave frameworks, many concepts like invisibility cloaking and subwavelength imaging can be transplanted from electromagnetic to acoustic waves easily. However, we need quite different ways of constructing the artificial materials and devices for acoustics. Here, we show how anisotropic metamaterials can be constructed to control the constitutive parameters of the effective medium through positioning hard plates in different preferred directions. We will then use them to construct an acoustic carpet cloak, an acoustic hyperlens and a superlens as examples. © Springer Nature Switzerland AG 2024.

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SN - 978-3-031-60017-3

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Anisotropic Metamaterials for Transformation Acoustics and Imaging

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SRG: Acoustic Metamaterials with Extreme Constitutive Parameters

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Anisotropic Metamaterials for Transformation Acoustics and Imaging

Abstract

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SRG: Acoustic Metamaterials with Extreme Constitutive Parameters

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