Material anisotropy unveiled by random scattering of surface acoustic waves

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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date

2011

Department

Department of Applied Physics

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Mcode

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Language

en

Pages

3

Series

Applied Physics Letters, Volume 98, issue 6, pp. 1-3

Abstract

We consider launching a monochromatic surface acoustic wave packet on a large set of random scatterers. The interference of the multiple scattered waves creates a random pattern of ripples on the crystal surface that is recorded by optical interferometry. The Fourier transform of the amplitude and phase data of the measured wave field unveils the complete slowness curve, i.e., the wave-vector as a function of the propagation angle. A simple acoustic speckle model is proposed to explain this observation.

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Keywords

Material anisotropy, Random scattering, Surface acoustic waves

Other note

DOI

10.1063/1.3554424

Citation

Laude, V, Kokkonen, K, Benchabane, S & Kaivola, M 2011, 'Material anisotropy unveiled by random scattering of surface acoustic waves', Applied Physics Letters, vol. 98, no. 6, 063506, pp. 1-3. https://doi.org/10.1063/1.3554424

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https://urn.fi/URN:NBN:fi:aalto-202510087853

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[article-cris] Perustieteiden korkeakoulu / SCI