Acoustic cloaking in two dimensions: a feasible approach

By D. Torrent, José Sánchez-Dehesa. 2008

389 citations recorded by the source corpus.

This work proposes an acoustic structure feasible to engineer that accomplishes the requirements of acoustic cloaking design recently introduced by Cummer and Schurig (2007 New J. Phys. 9 45). The structure, which consists of a multilayered composite made of two types of isotropic acoustic metamaterials, exactly matches the conditions for the acoustic cloaking. It is also shown that the isotropic metamaterials needed can be made of sonic crystals containing two types of material cylinders, whose elastic parameters should be properly chosen in order to satisfy (in the homogenization limit) the acoustic properties under request. In contrast to electromagnetic cloaking, the structure here proposed verifies the acoustic cloaking in a wide range of wavelengths; its performance is guaranteed for any wavelength above a certain cutoff defined by the homogenization limit of the sonic crystal employed in its fabrication.

Subfields: Atomic and Molecular Physics, and Optics, Biomedical Engineering, Electronic, Optical and Magnetic Materials

View Paper: https://www.semanticscholar.org/paper/6411d5c2ced162e342cb54a2d6df0bf45a0ae977

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In Atomic and Molecular Physics, and Optics

1. Hanbei Guo
2. Ting Wang
3. Junyi Liu

In Biomedical Engineering

1. Hanbei Guo
2. Ting Wang
3. Junyi Liu

In Electronic, Optical and Magnetic Materials

1. Hanbei Guo
2. Ting Wang
3. Junyi Liu

Citations in the corpus

• A Review of Acoustic Metamaterials and Phononic Crystals (2020, methodology): “[90] used two-dimensional composite cylindrical structure to achieve two-dimensional acoustic stealth.”