Estimation of C-n(2) based on scintillation of fixed targets imaged through atmospheric turbulence

摘要

We define a pixel-based scintillation index for dynamic incoherent imaging of fixed high-contrast targets through atmospheric turbulence. We propose a simple setup to study this parameter varying the C-n(2) constant in controlled laboratory conditions (weak fluctuation regime). We find the semi-empirical relationship between the pixel-based scintillation index and the index of refraction structure constant, which we then employ to estimate C-n(2) successfully in an independent case in which this value was not known beforehand. (C) 2015 Optical Society of America