Minimum strain requirements for optical membranes

Dan K. Marker; James R. Rotge; Richard A. Carreras; Dennis C. Duneman; James Michael Wilkes

doi:10.1117/12.367591

3 November 1999 Minimum strain requirements for optical membranes

Dan K. Marker, James R. Rotge, Richard A. Carreras, Dennis C. Duneman, James Michael Wilkes

Proceedings Volume 3760, High-Resolution Wavefront Control: Methods, Devices, and Applications; (1999) https://doi.org/10.1117/12.367591
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

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.

Citation Download Citation

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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