Experimental observation of locally-resonant and Bragg band gaps for surface guided waves in a phononic crystal of pillars

Achaoui, Younes; Khelif, Abdelkrim; Benchabane, Sarah; Robert, Laurent; Laude, Vincent

doi:10.1103/physrevb.83.104201

Public

Experimental observation of locally-resonant and Bragg band gaps for surface guided waves in a phononic crystal of pillars

Published in Physical Review B • Mar 14, 2011

Authors:

Younes Achaoui

Abdelkrim Khelif

Sarah Benchabane

Abstract

We report on the experimental study of the propagation of surface guided waves in a periodic arrangement of pillars on a semi-infinite medium. Samples composed of nickel pillars grown on a lithium niobate substrate were prepared and wide bandwidth transducers were used for the electrical generation ...

Subject

Band gap

Materials science

Bragg's law

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