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Phys Rev Lett. 2004 Apr 9;92(14):143905. Epub 2004 Apr 9.

Spatial correlation singularity of a vortex field.

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  • 1Optical Sciences Center, University of Arizona, Tucson, Arizona 85721, USA.

Abstract

Experimental and numerical techniques allowed us to predict and verify the existence of a robust phase singularity in the spatial coherence function when a vortex is present. Though observed in the optical domain, this phenomenon may occur in any partially coherent vortex wave.

PMID:
15089540
[PubMed]
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