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Proceedings Paper

Effect of the coating-thickness error on the performance of an optical component
Author(s): Marija Strojnik
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Paper Abstract

Errors in the thickness of the coating deposited on an optical component contribute to the fabrication-related performance deterioration of an optical system. We analyze the effects of systematic thickness errors, as might be generated during the coating fabrication process. The reflectivity changes only minimally from the nonperturbed values. However, the phase is very sensitive to the coating error. The effect of the coating thickness error on the performance of an optical element is two-fold. The layer thickness error results in a phase shift that differs from the design values for both the s- and the p-polarized light. The coating thickness error may additionally change the apparent surface figure of the optical component. Using the numerically-controlled diamond turning machines, a component may be fabricated intentionally with a requisite figure error to compensate for the coating thickness error.

Paper Details

Date Published: 29 September 1995
PDF: 9 pages
Proc. SPIE 2553, Infrared Spaceborne Remote Sensing III, (29 September 1995); doi: 10.1117/12.221394
Show Author Affiliations
Marija Strojnik, Ctr. de Investigaciones en Optica (Mexico)

Published in SPIE Proceedings Vol. 2553:
Infrared Spaceborne Remote Sensing III
Marija Strojnik; Bjorn F. Andresen, Editor(s)

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