Acoustically transparent and acoustic wave steering materials for acoustic cloaking and methods of fabrication thereof
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United States of America Patent
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May 2, 2017
Grant Date -
May 8, 2014
app pub date -
May 4, 2012
filing date -
May 4, 2011
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Abstract
Disclosed an acoustically transparent material including an acoustic wave steering material, and methods for fabrication and use thereof. The materials are specially designed structures of homogenous isotropic metals. These structures are constructed to propagate waves according to Pentamode elastic theory. The metamaterial structures are two-dimensional, intended to propagate acoustic waves in the plane in a manner which closely emulates the propagation of waves in water. The acoustically transparent materials described herein have particular utility as acoustic wave steering materials and acoustic cloaks.
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