stimation of $C_n^2$ based on scintillation of fixed targets imaged through atmospheric turbulence

DAMIÁN GULICH; GUSTAVO FUNES; DARÍO PÉREZ; LUCIANO ZUNINO

OPTICS LETTERS

OPTICAL SOC AMER

Lugar: Washington; Año: 2015 vol. 40 p. 5642 - 5645

0146-9592

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.