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Proceedings Paper

Adaptive optics using a liquid crystal phase modulator in conjunction with a Shack-Hartmann wavefront sensor and zonal control algorithm
Author(s): David Charles Dayton; Steven C. Sandven; John D. Gonglewski; Stephen L. Browne; Samuel C. Rogers; Scot W. McDermott
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Paper Abstract

Multi-segment liquid crystal spatial light modulators have received much attention recently for use as high-precision wavefront control devices for use in astronomical and non- astronomical applications. They act much like piston only segmented deformable mirrors. In this paper we investigate the use of these devices in conjunction with a Shack-Hartmann wave-front sensor. Previous investigators have considered Zernike modal control algorithms. In this paper we consider a zonal algorithm in order to take advantage of high speed matrix multiply hardware which we have in hand.

Paper Details

Date Published: 15 January 1998
PDF: 9 pages
Proc. SPIE 3219, Optics in Atmospheric Propagation and Adaptive Systems II, (15 January 1998); doi: 10.1117/12.298060
Show Author Affiliations
David Charles Dayton, Applied Technology Associates (United States)
Steven C. Sandven, Applied Technology Associates (United States)
John D. Gonglewski, Air Force Research Lab. (United States)
Stephen L. Browne, Optical Sciences Co. (United States)
Samuel C. Rogers, Willow Systems, Ltd. (United States)
Scot W. McDermott, Logicon R&D Associates (United States)


Published in SPIE Proceedings Vol. 3219:
Optics in Atmospheric Propagation and Adaptive Systems II
Anton Kohnle; Adam D. Devir, Editor(s)

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