We start by studying light propagation through a Lau-like arrangement—two Ronchi grids out of phase by half a period—within a turbulent medium. We show that degradation produced by the turbulence can be estimated in terms of the spacing between grids, the number of lines per millimeter, and <i>C</i><sub>ε</sub><sup>2</sup>, the structure constant of the medium. We also propose a way to evaluate the structure constant in an experimental arrangement in the laboratory.
© 1999 Optical Society of America
D. G. Pérez and M. Garavaglia, "Intensity distribution behavior of self-image systems into turbulent media," J. Opt. Soc. Am. A 16, 916-918 (1999)