Correlation singularities in partially coherent electromagnetic beams

S.B. Raghunathan, H. Schouten, T.D. Visser

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Abstract

We demonstrate that coherence vortices, singularities of the correlation function, generally occur in partially coherent electromagnetic beams. In successive cross sections of Gaussian Schell-model beams, their locus is found to be a closed string. These coherence singularities have implications for both interference experiments and correlation of intensity fluctuation measurements performed with such beams. © 2012 Optical Society of America.
Original languageEnglish
Pages (from-to)4179-4181
JournalOptics Letters
Volume37
Issue number20
DOIs
Publication statusPublished - 2012

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