Journal
MRS BULLETIN
Volume 33, Issue 10, Pages 931-934Publisher
CAMBRIDGE UNIV PRESS
DOI: 10.1557/mrs2008.202
Keywords
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Funding
- Office of Naval Research [N000140710626]
- National Science Foundation Graduate Fellowship Program
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The field of engineered materials with designed properties is expected to continue to grow in the future, and metamaterials are instrumental in allowing this freedom of design. Metamaterials, particularly acoustic, are still in the stage of infancy. Acoustic metamaterials are being explored theoretically, but there has been little headway on the experimental front. The design, development, and characterization of acoustic metamaterials will offer many opportunities in materials science. In this article, we review the basic physics of different kinds of acoustic periodic structures with special emphasis on locally resonant acoustic metamaterials. We first survey phononic crystals and then discuss localized resonances in intrinsic and inertial resonating structures of acoustic metamaterials. Finally, we present the ongoing efforts in realizing acoustic metamaterials with negative materials properties and discuss the implications of acoustic metamaterials.
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