Highly tunable acoustic metamaterials based on a resonant tubular array

K. J.B. Lee, Myoung Ki Jung, Sam H. Lee

Research output: Contribution to journalArticle

28 Citations (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.

Original languageEnglish
Article number184302
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume86
Issue number18
DOIs
Publication statusPublished - 2012 Nov 15

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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