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Proceedings Paper

Bonded Interface Surface Testing Via Differential Interferometric Stoneley Wave Measurements
Author(s): Richard O. Claus
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Paper Abstract

Differential optical interferometry, initially developed to characterize optical recording media surfaces and subsequently used to detect continuous and pulsed ultrasonic elastic waves, has been applied to the measurement of the interface properties of bonded transparent solids. Acousto-optic interaction between dual laser probe beams and the periodic particle displacements induced by acoustic waves on the boundary permits the qualitative identification of surface roughness defects at the interface. In this paper, the theory and operation of the real-time interferometric measurement system, an analysis of the acousto-optic interaction, and surface defect testing results for bonded glass specimens are presented.

Paper Details

Date Published: 25 December 1979
PDF: 6 pages
Proc. SPIE 0192, Interferometry, (25 December 1979); doi: 10.1117/12.957860
Show Author Affiliations
Richard O. Claus, Virginia Polytechnic Institute and State University (United States)

Published in SPIE Proceedings Vol. 0192:
George W. Hopkins, Editor(s)

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