The nondiffractive wave propagation in the sonic crystal consisting of rectangular rods with a slit

Liang Yu Wu, Lien Wen Chen, Mei Ling Wu

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

This study investigates the nondiffractive propagation of sound waves in two-dimensional sonic crystals consisting of rectangular rods with a slit. The plane wave expansion method is used to calculate the equifrequency surfaces of sonic crystals with a square lattice. At certain frequencies, straight contour lines in the equifrequency surfaces are found. That frequency is strongly dependent on the geometric sizes of the rectangular rods. Further, the nondiffractive propagation of the sound wave can be realized for omnidirectional incident angles, and the properties can be applied to design novel acoustic devices.

Original languageEnglish
Article number295229
JournalJournal of Physics Condensed Matter
Volume20
Issue number29
DOIs
Publication statusPublished - 2008 Jul 23

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics

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