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Scanning phononic lattices with surface acoustic waves

Authors
Journal
Physica B Condensed Matter
0921-4526
Publisher
Elsevier
Publication Date
Identifiers
DOI: 10.1016/s0921-4526(98)01258-7
Keywords
  • Ultrasound Imaging
  • Photonic Materials
  • Surface Acoustic Waves
Disciplines
  • Musicology
  • Physics

Abstract

Abstract We examine the transmission and reflection of surface acoustic waves from a two-dimensional hexagonal lattice. Highly anisotropic signals are observed by continuously scanning the wavevector angle. Preliminary models of wave propagation through this phononic lattice predict the acoustic dispersion and a complete band gap; however, the experimental results indicate that more realistic modeling of surface acoustic waves in elastically modulated media is required.

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