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Proceedings Paper

Holographic Interferometry
Author(s): Ralph F. Wuerker
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Paper Abstract

Holographic interferometry has been the most immediate, significant application of laser holography. For the first time, optical interferometric measurements can be made on non-optical surfaces; such as castings, pipes, panels, composites, etc., as well as through diffusely illuminated transparent scenes. Like classical interferometry, holographic interferometric measurements are sensitive to path changes down to one tenth of a wavelength of light (0.07 micron or 3 microinches). The technique has made available a completely new method of non-destructive testing: automobile tire testing, testing of adhesive bonds, pressure vessels, microwave antenna testing, the determination of resonant frequencies of mechanical structures, transient deformation of surfaces, and the study of aerodynamic phenomena.

Paper Details

Date Published: 14 October 1971
PDF: 14 pages
Proc. SPIE 0025, Developments in Holography II, (14 October 1971); doi: 10.1117/12.953515
Show Author Affiliations
Ralph F. Wuerker, TRW Systems Group (United States)

Published in SPIE Proceedings Vol. 0025:
Developments in Holography II
Brian J. Thompson; John B. DeVelis, Editor(s)

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