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Journal articles
Reducing the diffraction artifacts while implementing a phase function on a spatial light modulator
Abstract : Spatial light modulators are often used to implement phase modulation. Since they are pixelated, the phase function is usually approximated by a regularly sampled piecewise constant function, and the periodicity of the pixel sampling generates annoying diffraction peaks. We theoretically investigate two pixelation techniques: the isophase method and a new nonperiodic method derived from the Voronoi tessellation technique.We show that, for a suitable choice of parameters, the diffraction peaks disappear and are replaced by a smoothly varying halo. We illustrate the potential of these two techniques for implementing a lens function and wavefront correction.
Cited literature [11 references]
https://hal-iogs.archives-ouvertes.fr/hal-00564763
Contributor : Pierre Chavel <>
Submitted on : Friday, April 6, 2012 - 3:40:17 PM
Last modification on : Wednesday, September 16, 2020 - 5:42:13 PM
Long-term archiving on: : Tuesday, December 13, 2016 - 6:01:45 PM
Contributor : Pierre Chavel <>
Submitted on : Friday, April 6, 2012 - 3:40:17 PM
Last modification on : Wednesday, September 16, 2020 - 5:42:13 PM
Long-term archiving on: : Tuesday, December 13, 2016 - 6:01:45 PM
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00564763.pdf
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