Abstract:
The random sampling (Monte Carlo) method is used to investigate the spatial statistics of a laser beam in the case of wind refraction in a randomly inhomogeneous medium. Weakening of fluctuations of the optical field and departure from a statistical homogeneity of the beam are predicted as a result of feedback of perturbations in the nonlinear "beam–medium" system. A study is made of the limitations of the analytic approach in which nonlinear perturbations of temperature are assumed to be governed by the average intensity field.
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