Acoustic wave propagation in one-dimensional phononic crystals containing Helmholtz resonators

Zhi Guo Wang, Sam Hyeon Lee, Chul Koo Kim, Choon Mahn Park, Kyun Nahm, S. A. Nikitov

Research output: Contribution to journalArticle

58 Citations (Scopus)

Abstract

One-dimensional acoustic waveguide containing subwavelength-sized Helmholtz resonators is known to exhibit novel physical phenomena. However, no systematic theoretical study on this system has been carried out so far except on a few limited cases. We present a thorough theoretical calculation on the acoustic wave propagation in phononic crystals containing Helmholtz resonators without any geometrical size restrictions. The band structures, transmission spectra, and defect states are studied for diverse geometries using the interface response theory. It is shown that the acoustic band structure of the model is fundamentally different from the conventional acoustic-elastic cases and richer due to the coexistence of the resonant and the Bragg gaps. It is also shown that the presence of a defect resonator in the system can give rise to a localized mode inside the resonance gaps. The results clearly show that the presence of the Helmholtz resonators singly or periodically can play a prominent role in designing any acoustic band gap materials.

Original languageEnglish
Article number064907
JournalJournal of Applied Physics
Volume103
Issue number6
DOIs
Publication statusPublished - 2008 Apr 8

Fingerprint

Helmholtz resonators
wave propagation
acoustics
crystals
defects
constrictions
resonators
waveguides
geometry

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Wang, Zhi Guo ; Lee, Sam Hyeon ; Kim, Chul Koo ; Park, Choon Mahn ; Nahm, Kyun ; Nikitov, S. A. / Acoustic wave propagation in one-dimensional phononic crystals containing Helmholtz resonators. In: Journal of Applied Physics. 2008 ; Vol. 103, No. 6.
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Acoustic wave propagation in one-dimensional phononic crystals containing Helmholtz resonators. / Wang, Zhi Guo; Lee, Sam Hyeon; Kim, Chul Koo; Park, Choon Mahn; Nahm, Kyun; Nikitov, S. A.

In: Journal of Applied Physics, Vol. 103, No. 6, 064907, 08.04.2008.

Research output: Contribution to journalArticle

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