Spatial and temporal characteristics of a 128×128 zero-twist nematic liquid-crystal spatial light modulator are investigated for wave-front generation at a wavelength of 632.8 nm. The modulator is found to have the capability of producing at least eight phase levels between 0 and 2π , and the rate of arbitrary phase modulation is limited to approximately 4.5 Hz. Wave-front generation of the first 55 Zernike polynomials is demonstrated.
© 1998 Optical Society of America
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(010.7350) Atmospheric and oceanic optics : Wave-front sensing
(160.3710) Materials : Liquid crystals
(230.6120) Optical devices : Spatial light modulators
Doo Jin Cho, Samuel T. Thurman, J. T. Donner, and G. Michael Morris, "Characteristics of a 128 × 128 liquid-crystal spatial light modulator for wave-front generation," Opt. Lett. 23, 969-971 (1998)