Giant acoustic concentration by extraordinary transmission in zero-mass metamaterials

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

Research output: Contribution to journalArticle

71 Citations (Scopus)

Abstract

We demonstrate 97%, 89%, and 76% transmission of sound amplitude in air through walls perforated with subwavelength holes of areal coverage fractions 0.10, 0.03, and 0.01, respectively, producing 94-, 950-, and 5700-fold intensity enhancements therein. This remarkable level of extraordinary acoustic transmission is achieved with thin tensioned circular membranes, making the mass of the air in the holes effectively vanish. Imaging the pressure field confirms incident-angle independent transmission, thus realizing a bona fide invisible wall. Applications include high-resolution acoustic sensing.

Original languageEnglish
Article number244302
JournalPhysical Review Letters
Volume110
Issue number24
DOIs
Publication statusPublished - 2013 Jun 13

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acoustics
air
pressure distribution
membranes
augmentation
high resolution

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Park, Jong Jin ; Lee, K. J.B. ; Wright, Oliver B. ; Jung, Myoung Ki ; Lee, Sam-Hyeon. / Giant acoustic concentration by extraordinary transmission in zero-mass metamaterials. In: Physical Review Letters. 2013 ; Vol. 110, No. 24.
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Giant acoustic concentration by extraordinary transmission in zero-mass metamaterials. / Park, Jong Jin; Lee, K. J.B.; Wright, Oliver B.; Jung, Myoung Ki; Lee, Sam-Hyeon.

In: Physical Review Letters, Vol. 110, No. 24, 244302, 13.06.2013.

Research output: Contribution to journalArticle

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