Abstract
Pseudo Schell-model sources were introduced and studied in the scalar domain as those partially coherent sources that present a degree of coherence depending on the difference between the radial coordinates of the two considered points. In this work we study the propagation features of a class of beams radiated from sources of this kind, but endowed with a vectorial nature. The polarization pattern and the degree of polarization are not uniform across the beam section but remain invariant upon free paraxial propagation. On the other hand, their coherence and irradiance features are also non-uniform but in this case they change at each z-plane. The field characteristics can be varied on acting on the free parameters of the cross-spectral density matrix of the source.
Highlights
The radial dependence of the electromagnetic degree of coherence [22] shows a maximum for points on the same circle but this maximum has not to be necessarily 1, even though this parameter is calculated for the eld at the same point
This parameter decreases from such a maximum value in a Gaussian way when one of the two considered points apart from the other in radial direction either towards the center of the soure or to innity
The pattern of the degree of polarization remains invariant in propagation
Summary
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