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Optical Engineering

Rotatable shear plate interferometer
Author(s): William C. Sweatt
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Paper Abstract

A shear plate interferometer has been installed in a mount that allows the direction of shear to be rotated. With this instrument, the defocus and third-order aberrations in a laser beam can be measured very quickly, usually in about a minute including setup.

Paper Details

Date Published: 1 September 1990
PDF: 4 pages
Opt. Eng. 29(9) doi: 10.1117/12.55686
Published in: Optical Engineering Volume 29, Issue 9
Show Author Affiliations
William C. Sweatt, Sandia National Labs. (United States)


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