González de Sande, Juan CarlosSantarsiero, MassimoPiquero Sanz, Gemma MaríaGori, Franco2023-06-182023-06-182015-122040-897810.1088/2040-8978/17/12/125613https://hdl.handle.net/20.500.14352/24320© 2015 IOP Publishing Ltd. This work has been partially supported by the Spanish Ministerio de Economia y Competitividad under project FIS2013-46475.Using recently derived results about the difference of two cross-spectral densities, we consider a source whose correlation function is the difference of two mutually displaced Gaussian Schell-model cross-spectral densities. 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