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We examine the main features of this new cross-spectral density in terms of coherence and intensity distribution, both across the source plane and after free propagation.engjournal articlehttp://dx.doi.org/10.1088/2040-8978/17/12/125613http://iopscience.iop.org/open access535Cross-spectral densitiesPartially coherentElectromagnetic beamsAtmospheric-turbulencePropagation propertiesSpatial coherenceLightPolarizationDifferenceFieldsÓptica (Física)2209.19 Óptica Física