Holographic Interferometry

Ralph F. Wuerker

doi:10.1117/12.953515

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14 October 1971 Holographic Interferometry

Ralph F. Wuerker

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Proceedings Volume 0025, Developments in Holography II; (1971) https://doi.org/10.1117/12.953515
Event: Developments in Holography, 1971, Boston, United States

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.

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Ralph F. Wuerker "Holographic Interferometry", Proc. SPIE 0025, Developments in Holography II, (14 October 1971); https://doi.org/10.1117/12.953515

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