22 November 2000 Advanced phase-contrast techniques for wavefront sensing and adaptive optics
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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.
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Mikhail A. Vorontsov, Eric W. Justh, Leonid A. Beresnev, "Advanced phase-contrast techniques for wavefront sensing and adaptive optics", Proc. SPIE 4124, High-Resolution Wavefront Control: Methods, Devices, and Applications II, (22 November 2000); doi: 10.1117/12.407492; https://doi.org/10.1117/12.407492
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