Changes in the coherence properties of partially coherent dark hollow beam propagating through atmospheric turbulence

The changes in the degree of coherence of partially coherent Dark Hollow Beam (DHB) propagating through atmospheric turbulence have been studied in this article. It is shown analytically that with a fixed set of source parameters and under a particular atmospheric turbulence model, a partially coherent Dark Hollow Beam propagating through atmospheric turbulence reaches its maximum value of coherence after the beam propagates a specific distance, and the effective width of the spectral degree of coherence also has its maximum value. This phenomenon is dependent on the source parameter and the strength of the turbulence. The results are illustrated by numerical curves.