Abstract
A new method for modeling partially coherent vortex beams with modified Bessel-correlated properties is proposed. Analytical formulas for the cross-spectral density function of such beams propagating in free space and atmospheric turbulence are derived and used to investigate the propagation characteristics. The results show that such beams possess unique characteristics different from classical Schell-model type vortex beams. The intensity vortices exist in both high coherence and low coherence cases, and remain stable vortex profile on propagating in free space and weak atmospheric turbulence.
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