Advanced phase-contrast techniques for wavefront sensing and adaptive optics | Zendy

Mikhail A. Vorontsov | Zendy; Eric W. Justh | Zendy; L. A. Beresnev | Zendy

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<title>Advanced phase-contrast techniques for wavefront sensing and adaptive optics</title>

Author(s) -

Mikhail A. Vorontsov,

Eric W. Justh,

L. A. Beresnev

Publication year - 2000

Publication title -

proceedings of spie, the international society for optical engineering/proceedings of spie

Language(s) - English

Resource type - Conference proceedings

SCImago Journal Rank - 0.192

H-Index - 176

eISSN - 1996-756X

pISSN - 0277-786X

DOI - 10.1117/12.407492

Subject(s) - wavefront , adaptive optics , wavefront sensor , zernike polynomials , optics , phase (matter) , deformable mirror , contrast (vision) , spatial light modulator , physics , spatial filter , filter (signal processing) , computer science , computer vision , quantum mechanics

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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