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arXiv · 1509.04548

Correlations of photon trajectories in the problem of light scintillations

Oleksandr O. Chumak·Roman A. Baskov
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Abstract

A distribution function approach is applied to describe the dynamics of the laser beam in the Earth atmosphere. Using a formal solution of the kinetic equation for the distribution function, we have developed an iterative scheme for calculation of the scintillation index ($σ^2$). The problem reduces to obtaining the photon trajectories and their correlations. Bringing together theoretical calculations and many-fold computer integrations, the value of $σ^2$ is obtained. It is shown that a considerable growth of $σ^2$ in the range of a moderate turbulence is due to the correlations of different trajectories. The criteria of applicability of our approach for both the coherent and partially coherent light are derived.

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Oleksandr O. Chumak, Roman A. Baskov. 2015-09-15. Correlations of photon trajectories in the problem of light scintillations. https://doi.org/10.1103/physreva.93.033821

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