= Rytov number
{wiki=Rytov_number}
The Rytov number, often denoted as \\( R \\), is a dimensionless parameter that characterizes the strength of fluctuations in the refractive index of a medium through which light propagates. It is commonly used in the field of optics, especially in atmospheric optics and free-space communication systems. Mathematically, the Rytov number is defined in relation to the refractive index structure constant \\( C_n^2 \\) and the spatial or temporal scale of the propagation path.
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