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Measuring vector field correlations using diffraction
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DOI：10.1364/OE.26.008301.png)
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Abstract
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We present a method for efficiently measuring the 2 x 2 correlation matrix for paraxial partially coherent beams by using diffraction from small apertures and obstacles. Several representations for this matrix function of four spatial variables are discussed and illustrated with experimental results, including various alternative definitions of the spatial degree of coherence. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
Keywords:
SPATIAL COHERENCE
ELECTROMAGNETIC-FIELDS
BEAMS
INTERFEROMETER
POLARIZATION
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