Elastic wave propagation along waveguides in three-dimensional phononic crystals

H. Chandra, P. A. Deymier, J. O. Vasseur

Research output: Contribution to journalArticle

34 Scopus citations

Abstract

We investigate theoretically using the finite difference time domain method acoustic wave propagation along waveguides in three-dimensional phononic crystals constituted of lead spherical inclusions on a face-centered cubic lattice embedded in an epoxy matrix. The transmission spectra of the perfect phononic crystal for transverse and longitudinal acoustic waves are shown to depend strongly on the direction of propagation. The crystal possesses an absolute band gap. Waveguides oriented along different crystallographic directions, namely the 〈100〉 and 〈111〉 directions, exhibit pass bands in the phononic crystal band gaps for both transverse and longitudinal polarizations.

Original languageEnglish (US)
Article number054302
Pages (from-to)054302-1-054302-6
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume70
Issue number5
DOIs
StatePublished - Aug 1 2004

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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