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3 November 1999 Minimum strain requirements for optical membranes
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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.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Dan K. Marker, James R. Rotge, Richard A. Carreras, Dennis C. Duneman, and James Michael Wilkes "Minimum strain requirements for optical membranes", Proc. SPIE 3760, High-Resolution Wavefront Control: Methods, Devices, and Applications, (3 November 1999); https://doi.org/10.1117/12.367591
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