title: Nonlinear effects of phase blurring on Fourier transform holograms
abstract: Liquid-crystal light valves can have intensity-dependent resolution. We find for a nematic liquid-crystal light valve that this effect is well modeled as a phase that has been blurred by a linear space-invariant filter. The phase point-spread function is measured and is used in simulations to demonstrate that it introduces intermodulation products to the diffraction patterns of computer-generated Fourier transform holograms. Also, the influence of phase blurring on a pseudorandom-encoding algorithm is evaluated in closed form. This analysis applied to a spot array generator design indicates that nonlinear effects are negligible only if the diameter of the point-spread function is a small fraction of the pixel spacing.
authors.affiliation: The ElectroOptics Research Institute, University of Louisville, Kentucky 40292, USA.
authors.initials: M
authors.lastname: Duelli
authors.initials: L
authors.lastname: Ge
authors.initials: RW
authors.lastname: Cohn