Spatiotemporal coherence of nonmonochromatic laser radiation in a turbulent atmosphere

The results of the analysis of coherence of nonmonochromatic radiation propagating in a turbulent atmosphere are presented. It is shown that the spatial and temporal coherence of the field of a nonmonochromatic spatially limited partially coherent Gaussian beam depends on the position and orientation of radius vectors of observation points in its cross section. Upon passing to unlimited plane and spherical waves, the temporal and spatial coherence of laser radiation becomes homogeneous over the entire transverse plane. (coherence)