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Image artifacts in hybrid imaging systems with a cubic phase mask
Mads Demenikov1, Andrew R Harvey
1Heriot Watt University, Imaging Concepts Group, School of Engineering and Physical Sciences, Edinburgh, EH14 4AS, Scotland, UK.
Optics Express
|July 1, 2010
Abstract:
We present the first analytical analysis of image artifacts in defocused hybrid imaging systems that employ a cubic phase-modulation function. We show that defocus artifacts have the form of image replications and are caused by a net phase modulation of the optical transfer function. Both numerical simulations and experimental images are presented that exhibit replication artifacts that are compatible with the analytical expressions.

