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Atmospheric and Oceanic Optics

2013 year, number 12

Accounting for influence of atmospheric macroinhomogeneities in problems of laser radiation propagation along elongated high-altitude paths

V.V. Kolosov1, V.V. Dudorov1, G.A. Filimonov1, A.S. Panina1, M.A. Vorontsov2
1V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Science, 1, Academician Zuev square, Tomsk, 634021, Russia
2University of Dayton, 300 College Park, Dayton, OH 45469, USA
Keywords: inhomogeneous atmosphere, non-Kolmogorov turbulence, laser beam propagation


We show that large-scale atmospheric inhomogeneities observed in experiments can significantly affect optical radiation propagation along extended paths. We demonstrate that it is impossible to take into account this effect in the framework of the classical turbulence model. We propose a new algorithm for numerical simulation of laser beam propagation along extended low-inclined atmospheric paths with large-scale atmospheric inhomogeneities, which allows one to take into account beam refraction and focusing on the large-scale inhomogeneities along with beam distortions due to small-scale inhomogeneities and regular refraction in a vertical plane.