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Proceedings Paper

Minimum strain requirements for optical membranes
Author(s): Dan K. Marker; James R. Rotge; Richard A. Carreras; Dennis C. Duneman; James Michael Wilkes
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Paper Abstract

Thin membrane inherently require a certain minimum amount of strain to adequately perform as optical elements. This minimum strain can be established by simultaneously considering the effects of strain on the reflective surface, film thickness variations, and the corrective range of the adaptive optics (AO) scheme. To show how strain and the optimal optical surface are related, 75 and 125-micron thick polyimide films were examined under various strain conditions. Thickness variations were also mapped and correlated. The limits of the AO correction scheme set the films surface topography requirement. Our results will help to partially define an optical quality membrane, which is an important initial step toward the manufacturing of such a film.

Paper Details

Date Published: 3 November 1999
PDF: 8 pages
Proc. SPIE 3760, High-Resolution Wavefront Control: Methods, Devices, and Applications, (3 November 1999); doi: 10.1117/12.367591
Show Author Affiliations
Dan K. Marker, Air Force Research Lab. (United States)
James R. Rotge, Boeing North American, Inc. (United States)
Richard A. Carreras, Air Force Research Lab. (United States)
Dennis C. Duneman, Air Force Research Lab. (United States)
James Michael Wilkes, Air Force Research Lab. (United States)

Published in SPIE Proceedings Vol. 3760:
High-Resolution Wavefront Control: Methods, Devices, and Applications
John D. Gonglewski; Mikhail A. Vorontsov, Editor(s)

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