Coherence singularities in the field generated by partially coherent sources | Zendy

Terry van Dijk | Zendy; Hugo F. Schouten | Zendy; Taco D. Visser | Zendy

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Coherence singularities in the field generated by partially coherent sources

Author(s) -

Terry van Dijk,

Hugo F. Schouten,

Taco D. Visser

Publication year - 2009

Publication title -

physical review a

Language(s) - English

Resource type - Journals

eISSN - 1094-1622

pISSN - 1050-2947

DOI - 10.1103/physreva.79.033805

Subject(s) - physics , gravitational singularity , singularity , coherence (philosophical gambling strategy) , conic section , ellipse , planar , hyperbola , classical mechanics , coherence theory , optics , geometry , coherence length , quantum mechanics , mathematics , computer graphics (images) , superconductivity , astronomy , computer science

We analyze the coherence singularities that occur in the far field that is generated by a broad class of partially coherent sources. It is shown that for rotationally symmetric planar quasihomogeneous sources the coherence singularities form a two-dimensional surface in a reduced three-dimensional space. We illustrate our results by studying the topology of the coherence singularity of a partially coherent vortex beam. We find that the geometry of the phase singularity can be associated with conic sections such as ellipses, lines, and hyperbolas

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