Acoustic metamaterial with negative modulus

Sam-Hyeon Lee, Choon Mahn Park, Yong Mun Seo, Zhi Guo Wang, Chul Koo Kim

Research output: Contribution to journalArticle

180 Citations (Scopus)

Abstract

We present experimental and theoretical results on an acoustic metamaterial that exhibits a negative effective modulus in a frequency range from 0 to 450Hz. A one-dimensional acoustic metamaterial with an array of side holes on a tube was fabricated. We observed that acoustic waves above 450Hz propagated well in this structure, but no sound below 450Hz passed through. The frequency characteristics of the metamaterial has the same form as that of the permittivity in metals due to the plasma oscillation. We also provide a theory to explain the experimental results.

Original languageEnglish
Article number175704
JournalJournal of Physics Condensed Matter
Volume21
Issue number17
DOIs
Publication statusPublished - 2009 May 12

Fingerprint

Metamaterials
Acoustics
acoustics
Acoustic waves
Plasma oscillations
plasma oscillations
Permittivity
Metals
frequency ranges
permittivity
tubes
metals

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Lee, Sam-Hyeon ; Park, Choon Mahn ; Seo, Yong Mun ; Wang, Zhi Guo ; Kim, Chul Koo. / Acoustic metamaterial with negative modulus. In: Journal of Physics Condensed Matter. 2009 ; Vol. 21, No. 17.
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Acoustic metamaterial with negative modulus. / Lee, Sam-Hyeon; Park, Choon Mahn; Seo, Yong Mun; Wang, Zhi Guo; Kim, Chul Koo.

In: Journal of Physics Condensed Matter, Vol. 21, No. 17, 175704, 12.05.2009.

Research output: Contribution to journalArticle

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