Correlation singularities in partially coherent electromagnetic beams
More Info
expand_more
expand_more
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.
Files
Raghunathan_2012.pdf
(pdf | 0.291 Mb)