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Proceedings Paper

Applications Of Diffraction Moire Interferometry To The Creation Of Unique Identifying Marks
Author(s): V. A. Deason; M. B. Ward
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Paper Abstract

With the development of the portable diffraction moire interferometer, it became possible to imagine the use of subtly distorted or aberrated diffraction gratings as unique markers. The portable system, described in another report, provides a simple and convenient method for accurately measuring the degree of distortion of an aberrated diffraction grating so as to uniquely determine the identity of the grating. The concept, technique, devices, and data reduction are described for this unusual application of diffraction gratings, interferometry, and optical fibers.

Paper Details

Date Published: 25 April 1990
PDF: 11 pages
Proc. SPIE 1162, Laser Interferometry: Quantitative Analysis of Interferograms: Third in a Series, (25 April 1990); doi: 10.1117/12.962756
Show Author Affiliations
V. A. Deason, EG&G Idaho, Inc. (United States)
M. B. Ward, EG&G Idaho, Inc. (United States)


Published in SPIE Proceedings Vol. 1162:
Laser Interferometry: Quantitative Analysis of Interferograms: Third in a Series
Ryszard J. Pryputniewicz, Editor(s)

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