Optical EngineeringMean intensity of a fundamental Bessel beam in turbulent atmosphere
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The question concerning stability of a fundamental Bessel beam propagated in a turbulent atmosphere is considered. In this study, features of the spatial structure of distribution of the mean intensity of a fundamental Bessel beam in a randomly inhomogeneous medium are analyzed in detail. Features of the propagation of an optical Bessel beam in a turbulent atmosphere are studied on the basis of the second-order mutual coherence function of the field of an optical beam by using the extended Huygens–Fresnel principle. A condition has been derived for the mean intensity of a Bessel beam, which is a quantitative criterion for the formation of a beam along a long path in a turbulent atmosphere.