Adaptive optics using a liquid crystal phase modulator in conjunction with a Shack-Hartmann wave front sensor and zonal control algorithm.
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.
D
D
Dayton
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S
Sandven
J
J
Gonglewski
S
S
Browne
S
S
Rogers
S
S
McDermott