Propagation of Partially Coherent Beams with Noncanonical Vortex Pairs in Chiral Media: Evolution of the Cross-Correlation Function

This study investigates the propagation characteristics and the evolution of the cross-correlation function (CCF) of partially coherent beams embedded with noncanonical vortex pairs through chiral media.A theoretical model is developed to describe the beam's behavior, incorporating the effects of chiral parameters, propagation distance, and noncanonical strength.Numerical simulations reveal that the handedness of the chiral medium-left circularly polarized (LCP) or right circularly polarized (RCP)significantly influences the CCF structure.In LCP media, the number of CCF rings consistently equals the sum of the topological charges, while RCP media induce complex structural transformations, including ring separation and reconstruction.Additionally, both propagation distance and chirality parameter play crucial roles in the morphological development of the CCF.The noncanonical strength further modulates the coherence structure, facilitating transitions from nested elliptical configurations to well-separated ring patterns.These findings enhance the understanding of singular optics in complex media and offer potential applications in optical communication, sensing, and manipulation.