Acoustic resonant states on the interface between density-negative and modulus-negative metamaterial

Myeung Hee Lee, Myoung Ki Jung, Sam Hyeon Lee, S. A. Nikitov

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We observed resonant states on the interface between the acoustic metamaterials of negative effective mass density and negative effective modulus, which were based on membranes and side holes, respectively. All resonances excited by placing the driving pressure at different places have the same spatial pressure distribution and resonance frequency. The amplitude decayed exponentially on both sides of the interface. We present experimental results on the spatial and the spectral characteristics of the resonant states.

Original languageEnglish
Pages (from-to)31-33
Number of pages3
JournalJournal of the Korean Physical Society
Issue number1
Publication statusPublished - 2012 Jan 1


All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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