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Effective Parameters of Acoustic Metamaterials
Russian Physics Journal, 2018Analytical expressions are presented for the wave number, the characteristic wave impedance, and the refractive index of homogeneous longitudinal plane waves propagating in an acoustic metamaterial with dissipative losses. The metamaterial is characterized by the effective scalar material parameters: the complex density and the compressibility.
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Acoustic conjugate metamaterials
Physical Review B, 2019Compared to metamaterials based on regulation of real material parameters, artificial materials designed by controlling complex parameters exhibit richer physics and different functions. In this work, we present acoustic conjugate metamaterials, which possess complex mass densities and bulk compressibilities with opposite phases, to manipulate acoustic
Liang Chen, Li Fan, Shu-yi Zhang
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2021
Bubbly metamaterials are created by exploiting the low-frequency Minnaert resonance of bubbles, and can radically modify acoustic wave behaviour. In this presentation, I will first review the properties of bubble metascreens, which consist of a single layer of bubbles in a soft solid, and can be very efficient absorbers of waterborne acoustic waves ...
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Bubbly metamaterials are created by exploiting the low-frequency Minnaert resonance of bubbles, and can radically modify acoustic wave behaviour. In this presentation, I will first review the properties of bubble metascreens, which consist of a single layer of bubbles in a soft solid, and can be very efficient absorbers of waterborne acoustic waves ...
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Development and progress in acoustic phase-gradient metamaterials for wavefront modulation
Materials Today, 2023Guo Jingwen
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Acoustic Metamaterials at the Microscale
2023Micro-architected materials allow for tunability of extreme static mechanical properties such as stiffness, Poisson’s ratio, or strength. However, dynamic and acoustic properties of micro-architected materials remain largely unexplored, partially because it is challenging to measure their response at these scales.
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Acoustic Metamaterials: A Review of Theories, Structures, Fabrication Approaches, and Applications
Advanced Materials Technologies, 2021Congcong Luan +2 more
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Controlling sound with acoustic metamaterials
Nature Reviews Materials, 2016Steven Cummer, Johan Christensen
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Acoustic metamaterials: From local resonances to broad horizons
Science Advances, 2016Ping Sheng, Guancong Ma
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