Simulation of beam propagation over an atmospheric channel for high-energy laser beam.|@|~(^,^)~|@|Example of phase screens for (a) atmospheric turbulence and (b) thermal blooming.|@|~(^,^)~|@|Normalized power in the bucket value as functions of distortion number, N_d, and number of thermal blooming screens N_B.|@|~(^,^)~|@|Exemplary beam intensity profiles after 5-km propagation over an atmospheric channel when the distortion number is 50 rad: (a) weak turbulence (Cn2 = 10⁻¹⁶ m^−2/3) and (b) strong turbulence (Cn2 = 10⁻¹³ m^−2/3). The white circle represents a bucket having a 3-cm diameter.|@|~(^,^)~|@|Probability mass functions of power in the bucket values under (a) weak turbulence (Cn2 = 10⁻¹⁵ m^−2/3) when the distortion number is 126 rad and (b) strong turbulence (Cn2 = 10⁻¹³ m^−2/3) when the distortion number is 84 rad. The total number of simulations is 10,000.|@|~(^,^)~|@|(a) R-squared and (b) average error of on-axis scintillation indexes for various atmospheric conditions and laser power densities.|@|~(^,^)~|@|(a) Total simulation time measured by using a personal computer versus the total number of simulations, N, under strong turbulence (Cn2 = 10⁻¹³ m^−2/3) and weak turbulence (Cn2 = 10⁻¹⁶ m^−2/3). (b) Total simulation time versus the refractive index structure constant, Cn2. The total number of simulations is 10,000.

2024;35:49~60 https://doi.org/10.3807/KJOP.2024.35.2.049