Giant concentration by extraordinary acoustic transmission in metamaterials

Sam H. Lee, Jong Jin Park, Myoung Ki Jung, K. J.B. Lee, Oliver B. Wright

Research output: Contribution to conferencePaper

Abstract

We realized zero-mass metamaterials by making the inertance of membrane-covered air holes close to zero. We thereby experimentally and theoretically demonstrate a new mechanism for acoustic extraordinary transmission. For a filling fraction of 1 % we obtained a 57% transmission intensity (76% in amplitude); this implies that on resonance the particle velocity inside a hole is 76 times greater than that of incident wave, corresponding to an intensification of the acoustic energy density by a factor of 5700. Such a high concentration of acoustic energy into a small hole of radius r = λ/56 enables sensitive detection of acoustic signals with subwave-length resolution. Potential applications include scanning near-field acoustic microscopy.

Original languageEnglish
Pages2654-2661
Number of pages8
Publication statusPublished - 2013 Jan 1
Event20th International Congress on Sound and Vibration 2013, ICSV 2013 - Bangkok, Thailand
Duration: 2013 Jul 72013 Jul 11

Other

Other20th International Congress on Sound and Vibration 2013, ICSV 2013
CountryThailand
CityBangkok
Period13/7/713/7/11

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acoustics
near fields
flux density
membranes
microscopy
radii
scanning
air
energy

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics

Cite this

Lee, S. H., Park, J. J., Jung, M. K., Lee, K. J. B., & Wright, O. B. (2013). Giant concentration by extraordinary acoustic transmission in metamaterials. 2654-2661. Paper presented at 20th International Congress on Sound and Vibration 2013, ICSV 2013, Bangkok, Thailand.
Lee, Sam H. ; Park, Jong Jin ; Jung, Myoung Ki ; Lee, K. J.B. ; Wright, Oliver B. / Giant concentration by extraordinary acoustic transmission in metamaterials. Paper presented at 20th International Congress on Sound and Vibration 2013, ICSV 2013, Bangkok, Thailand.8 p.
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Lee, SH, Park, JJ, Jung, MK, Lee, KJB & Wright, OB 2013, 'Giant concentration by extraordinary acoustic transmission in metamaterials' Paper presented at 20th International Congress on Sound and Vibration 2013, ICSV 2013, Bangkok, Thailand, 13/7/7 - 13/7/11, pp. 2654-2661.

Giant concentration by extraordinary acoustic transmission in metamaterials. / Lee, Sam H.; Park, Jong Jin; Jung, Myoung Ki; Lee, K. J.B.; Wright, Oliver B.

2013. 2654-2661 Paper presented at 20th International Congress on Sound and Vibration 2013, ICSV 2013, Bangkok, Thailand.

Research output: Contribution to conferencePaper

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Lee SH, Park JJ, Jung MK, Lee KJB, Wright OB. Giant concentration by extraordinary acoustic transmission in metamaterials. 2013. Paper presented at 20th International Congress on Sound and Vibration 2013, ICSV 2013, Bangkok, Thailand.