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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Vol. 17, Iss. 9 — Sep. 1, 2000
  • pp: 1594–1605

Nonlinear effects of phase blurring on Fourier transform holograms

Markus Duelli, Li Ge, and Robert W. Cohn  »View Author Affiliations


JOSA A, Vol. 17, Issue 9, pp. 1594-1605 (2000)
http://dx.doi.org/10.1364/JOSAA.17.001594


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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.

© 2000 Optical Society of America

OCIS Codes
(030.6600) Coherence and statistical optics : Statistical optics
(070.2580) Fourier optics and signal processing : Paraxial wave optics
(100.3020) Image processing : Image reconstruction-restoration
(160.3710) Materials : Liquid crystals
(230.6120) Optical devices : Spatial light modulators

History
Original Manuscript: October 22, 1999
Revised Manuscript: May 1, 2000
Manuscript Accepted: May 1, 2000
Published: September 1, 2000

Citation
Markus Duelli, Li Ge, and Robert W. Cohn, "Nonlinear effects of phase blurring on Fourier transform holograms," J. Opt. Soc. Am. A 17, 1594-1605 (2000)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-17-9-1594

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