Guided Elastic Waves at Periodically Structured Surfaces and Interfaces

  • A. G. Every
  • A. A. Maznev
Conference paper
Part of the IUTAM Bookseries book series (IUTAMBOOK, volume 26)


A brief overview is provided of guided elastic waves at periodically structured surfaces, with particular attention given to their folded dispersion relations,the occurrence of band gaps, their coupling to bulk elastic waves, and their interaction with light.Two examples of physical situations and the dynamic behavior they give rise to are used to illustrate these ideas. The first pertains to the dispersion relation for guided waves at a periodic array of thin coplanar slits in a solid, and the role that they play in the scattering of bulk waves. Next, behavior for laser generated dispersive Rayleigh and Sezawa modes in a patterned thin film structure on a substrate is discussed.


Elastic Wave Dispersion Curve Rayleigh Wave Surface Acoustic Wave Scattered Field 
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© Springer Science+Business Media B.V. 2010

Authors and Affiliations

  1. 1.School of PhysicsUniversity of the WitwatersrandJohannesburgSouth Africa

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