Coherence degree of a partially coherent Bessel beam in turbulent atmosphere

Abstract

The results of theoretical researches of coherence properties of partially coherent Bessel optical beams in turbulent atmosphere are presented. Coherence degree of such beams depending on beams parameters and characteristics of turbulent atmosphere is analyzed in detail. It is shown that coherence degree of partially coherent Bessel optical beam essentially depends on value of topological charge of this beam. At high levels of fluctuations in turbulent atmosphere the coherence degree of a vortex Bessel optical beam decreases faster, than it takes place for a fundamental Bessel optical beam. It is discovered that speed of decrease increases in process of increase in a topological charge of this beam.