Acoustic cloaking in two dimensions: a feasible approach
- Author
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Daniel Torrent and José Sánchez-Dehesa 1
- Affiliations
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Wave Phenomena Group, Department of Electronic Engineering, Polytechnic University of Valencia, C/ Camino de vera s.n., E-46022 Valencia, Spain
1 Author to whom any correspondence should be addressed.
- Journal
- Issue
- Citation
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Daniel Torrent and José Sánchez-Dehesa 2008 New J. Phys. 10 063015
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- Abstract
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.
- PACS
- Subjects
- Dates
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Issue 6 (June 2008)
Received 13 March 2008
Published 13 June 2008
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Acoustic cloaking in two dimensions: a feasible approach
Daniel Torrent and José Sánchez-Dehesa 2008 New J. Phys. 10 063015
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Quantum carpets woven by Wigner functions
O M Friesch et al 2000 New J. Phys. 2 4
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