Complete band gaps and deaf bands of triangular and honeycomb water-steel phononic crystals

Fu Li Hsiao, Abdelkrim Khelif, Hanane Moubchir, Abdelkrim Choujaa, Chii Chang Chen, Vincent Laude

Research output: Contribution to journalArticle

70 Citations (Scopus)

Abstract

Phononic crystals with triangular and honeycomb lattices are investigated experimentally and theoretically. They are composed of arrays of steel cylinders immersed in water. The measured transmission spectra reveal the existence of complete band gaps but also of deaf bands. Band gaps and deaf bands are identified by comparing band structure computations, obtained by a periodic-boundary finite element method, with transmission simulations, obtained using the finite difference time domain method. The appearance of flat bands and the polarization of the associated eigenmodes is also discussed. Triangular and honeycomb phononic crystals with equal cylinder diameter and smallest spacing are compared. As previously obtained with air-solid phononic crystals, it is found that the first complete band gap opens for the honeycomb lattice but not for the triangular lattice, thanks to symmetry reduction.

Original languageEnglish
Article number044903
JournalJournal of Applied Physics
Volume101
Issue number4
DOIs
Publication statusPublished - 2007 Mar 12

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steels
water
crystals
finite difference time domain method
finite element method
spacing
air
symmetry
polarization
simulation

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Hsiao, Fu Li ; Khelif, Abdelkrim ; Moubchir, Hanane ; Choujaa, Abdelkrim ; Chen, Chii Chang ; Laude, Vincent. / Complete band gaps and deaf bands of triangular and honeycomb water-steel phononic crystals. In: Journal of Applied Physics. 2007 ; Vol. 101, No. 4.
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Complete band gaps and deaf bands of triangular and honeycomb water-steel phononic crystals. / Hsiao, Fu Li; Khelif, Abdelkrim; Moubchir, Hanane; Choujaa, Abdelkrim; Chen, Chii Chang; Laude, Vincent.

In: Journal of Applied Physics, Vol. 101, No. 4, 044903, 12.03.2007.

Research output: Contribution to journalArticle

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