Experimental evidence of zero-angle refraction and acoustic wave-phase control in a two-dimensional solid/solid phononic crystal

J. O. Vasseur, B. Morvan, A. Tinel, N. Swinteck, A. C. Hladky-Hennion, P. A. Deymier

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

The square symmetry of the equifrequency contour of longitudinal waves in a solid/solid two-dimensional phononic crystal (PC) is shown through numerical calculations and experiments to lead to peculiar propagation phenomena. A slab of steel/epoxy PC immersed in water refracts incident longitudinal waves by an angle of zero degrees. The waves propagate along the shortest path between the slab faces. This characteristic enables the superposition within the same volume of the PC of waves with different incidence angles. Two incident waves with symmetrical incident angles can interfere constructively or destructively inside the PC depending on their initial phase difference. This phase difference is shown to enable control of wave propagation through the PC.

Original languageEnglish (US)
Article number134305
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume86
Issue number13
DOIs
StatePublished - Oct 18 2012

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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