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Proceedings Paper

Advanced phase-contrast techniques for wavefront sensing and adaptive optics
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Paper Abstract

High-resolution phase-contrast wavefront sensors based on optically addressed phase spatial light modulators and micro- mirror/LC arrays are introduced. Wavefront sensor efficiency is analyzed for atmospheric turbulence-induced phase distortions described by the Kolmogorov and Andrews models. A nonlinear Zernike filter wavefront sensor based on an optically addressed liquid crystal phase spatial light modulator is experimentally demonstrated. The results demonstrate high-resolution visualization of dynamically changing phase distortions within the sensor time response of about 10 msec.

Paper Details

Date Published: 22 November 2000
PDF: 12 pages
Proc. SPIE 4124, High-Resolution Wavefront Control: Methods, Devices, and Applications II, (22 November 2000); doi: 10.1117/12.407492
Show Author Affiliations
Mikhail A. Vorontsov, Army Research Lab. (United States)
Eric W. Justh, Univ. of Maryland/College Park (United States)
Leonid A. Beresnev, Army Research Lab. (United States)


Published in SPIE Proceedings Vol. 4124:
High-Resolution Wavefront Control: Methods, Devices, and Applications II
John D. Gonglewski; Mikhail A. Vorontsov; Mark T. Gruneisen, Editor(s)

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