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Proceedings Paper

Reflection of inhomogeneous plane ultrasonic waves on periodically rough solid-vacuum interfaces
Author(s): R. Briers; Oswald Jozef Leroy
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Paper Abstract

A method is proposed to describe the diffraction phenomena that occur when an inhomogeneous plane wave is incident onto a stress-free solid-vacuum boundary with periodic roughness. Theoretical results for several samples show that this method predicts a minimum in the reflection coefficient near the fundamental resonance frequency, corresponding to Rayleigh wave generation. This dip is clearly observed experimentally, but failed to show up in previous treatments of the problem which always used homogeneous plane waves.

Paper Details

Date Published: 25 November 1992
PDF: 10 pages
Proc. SPIE 1844, Acousto-Optics and Applications, (25 November 1992); doi: 10.1117/12.131926
Show Author Affiliations
R. Briers, Katholieke Univ. Leuven (Belgium)
Oswald Jozef Leroy, Katholieke Univ. Leuven (Belgium)


Published in SPIE Proceedings Vol. 1844:
Acousto-Optics and Applications

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