Daniel Torrent and José Sánchez-Dehesa 2008 New J. Phys. 10 063015 doi:10.1088/1367-2630/10/6/063015
Acoustic cloaking in two dimensions: a feasible approach
Daniel Torrent and José Sánchez-Dehesa1
Show affiliationsThis 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
-
Issue 6 (June 2008)
Received 13 March 2008
Published 13 June 2008
-
Acoustic cloaking in two dimensions: a feasible approach
Daniel Torrent and José Sánchez-Dehesa 2008 New J. Phys. 10 063015
-
On the diffraction of light by spherical obstacles
C V Raman and K S Krishnan 1925 Proc. Phys. Soc. London 38 350
-
Some insight into the convergence of the multiple scattering series expansion
Didier Sébilleau and Calogero R Natoli 2009 J. Phys.: Conf. Ser. 190 012002
-
CCQM-P39: As, Hg, Pb, Se and methylmercury in tuna fish
Y Aregbe et al 2004 Metrologia 41 08004
-
Dynamics and structure formation in thin polymer melt films
Ralf Seemann et al 2005 J. Phys.: Condens. Matter 17 S267
-
Measurement of electron temperature in glow discharge in transverse magnetic field by spectroscopic method
S K Sadhya and S N Sen 1980 J. Phys. D: Appl. Phys. 13 1275
-
Black hole formation from massive scalar fields
Sérgio M C V Gonçalves and Ian G Moss 1997 Class. Quantum Grav. 14 2607
-
Propagation of uncertainty for non-linear calibration equations with an application in radiation thermometry
Peter Saunders 2003 Metrologia 40 93
-
Characterization of a novel phantom for three-dimensional in vitro cell experiments
Michael B Altman et al 2009 Phys. Med. Biol. 54 N75
-
`Atoms in Molecules': A Simple Approach
E Theal Stewart 1960 Proc. Phys. Soc. 75 402
Users also read
What's this?- Noble metal capping effects on the spin-reorientation transitions of Co/Ru(0001)
- Rolling ferrofluid drop on the surface of a liquid
- A geometric theory of swimming: Purcell's swimmer and its symmetrized cousin