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

doi:10.3938/jkps.60.31

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

Department of Physics

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

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 language	English
Pages (from-to)	31-33
Number of pages	3
Journal	Journal of the Korean Physical Society
Volume	60
Issue number	1
DOIs	https://doi.org/10.3938/jkps.60.31
Publication status	Published - 2012 Jan

Bibliographical note

Funding Information:
This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (NRF F01-2009-000-10028-0 and 2010-0012562).

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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10.3938/jkps.60.31

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abstract = "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.",

author = "Lee, {Myeung Hee} and Jung, {Myoung Ki} and Lee, {Sam Hyeon} and Nikitov, {S. A.}",

note = "Funding Information: This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (NRF F01-2009-000-10028-0 and 2010-0012562).",

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doi = "10.3938/jkps.60.31",

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AU - Jung, Myoung Ki

AU - Lee, Sam Hyeon

AU - Nikitov, S. A.

N1 - Funding Information: This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (NRF F01-2009-000-10028-0 and 2010-0012562).

PY - 2012/1

Y1 - 2012/1

N2 - 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.

AB - 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.

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

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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