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Highly tunable acoustic metamaterials based on a resonant tubular array

Title
Highly tunable acoustic metamaterials based on a resonant tubular array
Authors
Lee K.J.B.Jung M.K.Lee S.H.
Ewha Authors
이공주복
SCOPUS Author ID
이공주복scopus
Issue Date
2012
Journal Title
Physical Review B - Condensed Matter and Materials Physics
ISSN
1098-0121JCR Link
Citation
vol. 86, no. 18
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
Recent theoretical studies demonstrated that waves can be steered in any desired fashion by using a suitable distribution of material parameters. However, the required parameters for acoustic transformations often surpass the ranges available from the metamaterials developed so far. We introduce a class of acoustic metamaterials based on standing waves in a tubular array and experimentally demonstrate continuous tuning of the compressibility in an unprecedentedly wide range from -8 to 6 relative to air at audio frequencies. Potential applications include the acoustic Luneburg lens and cloaking. © 2012 American Physical Society.
DOI
10.1103/PhysRevB.86.184302
Appears in Collections:
자연과학대학 > 물리학전공 > Journal papers
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