Far-field image magnification for acoustic waves using anisotropic acoustic metamaterials
- 6 February 2008
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review E
- Vol. 77 (2) , 025601
Abstract
A kind of two-dimensional acoustic metamaterial is designed so that it exhibits strong anisotropy along two orthogonal directions. Based on the rectangular equal frequency contour of this metamaterial, magnifying lenses for acoustic waves, analogous to electromagnetic hyperlenses demonstrated recently in the optical regime, can be realized. Such metamaterial may offer applications in imaging for systems that obey scalar wave equations.Keywords
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