Waveguiding inside the complete band gap of a phononic crystal slab

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

Research output: Contribution to journalArticle

87 Citations (Scopus)

Abstract

The propagation of acoustic waves in a square-lattice phononic crystal slab consisting of a single layer of spherical steel beads in a solid epoxy matrix is studied experimentally. Waves are excited by an ultrasonic transducer and fully characterized on the slab surface by laser interferometry. A complete band gap is found to extend around 300 kHz, in good agreement with theoretical predictions. The transmission attenuation caused by absorption and band gap effects is obtained as a function of frequency and propagation distance. Well confined acoustic wave propagation inside a line-defect waveguide is further observed experimentally.

Original languageEnglish
Article number056601
JournalPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume76
Issue number5
DOIs
Publication statusPublished - 2007 Nov 8

Fingerprint

Band Gap
Acoustic Waves
slabs
Crystal
Laser Interferometry
Propagation
laser interferometry
propagation
acoustics
Epoxy
Square Lattice
Transducer
crystal lattices
beads
Attenuation
Wave Propagation
crystals
Waveguide
wave propagation
Steel

All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Condensed Matter Physics

Cite this

Hsiao, Fu Li ; Khelif, Abdelkrim ; Moubchir, Hanane ; Choujaa, Abdelkrim ; Chen, Chii Chang ; Laude, Vincent. / Waveguiding inside the complete band gap of a phononic crystal slab. In: Physical Review E - Statistical, Nonlinear, and Soft Matter Physics. 2007 ; Vol. 76, No. 5.
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Waveguiding inside the complete band gap of a phononic crystal slab. / Hsiao, Fu Li; Khelif, Abdelkrim; Moubchir, Hanane; Choujaa, Abdelkrim; Chen, Chii Chang; Laude, Vincent.

In: Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, Vol. 76, No. 5, 056601, 08.11.2007.

Research output: Contribution to journalArticle

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