Acoustic manipulation of fractal metamaterials with negative properties and near-zero densities

被引：9

作者：

Wu, Guanghua ^{[1
]}

Ke, Yibo ^{[1
]}

Zhang, Lin ^{[1
]}

Tao, Meng ^{[1
]}

机构：

[1] Guizhou Univ, Sch Mech Engn, Guiyang, Peoples R China

来源：

APPLIED PHYSICS EXPRESS | 2022年 / 15卷 / 01期

关键词：

fractal acoustic metamaterial; sound modulation; acoustic cloaking; near-zero density transmission;

D O I：

10.35848/1882-0786/ac4301

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Acoustic metamaterials have high potential in diverse applications, including acoustic cloaking, sound tunneling, wavefront reshaping, and sound insulation. In the present study, new metamaterials consisting of spatially coiled units are designed and fabricated to manipulate sound waves in the range of 0-1600 Hz. The effective acoustic properties and band diagrams of the metamaterials are studied. The simulation and experimental results demonstrate that the metamaterials provide an effective and feasible approach for designing acoustic devices such as sound cloaking and insulators.

引用

页数：6

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