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We have previously shown that azopolymer thin films exposed to coherent lightthat has travelled through a turbulent medium produces a surface relief gratingcontaining information about the intensity of the turbulence; for instance, arelation between the refractive index structure constant C2 as a function ofthe surface parameters was obtained. In this work, we show that these filmscapture much more information about the turbulence dynamics. Multifractaldetrended fluctuation and fractal dimension analysis from images of the surfaceroughness produced by the light on the azopolymer reveals scaling propertiesrelated to those of the optical turbulence.

Multifractal characteristics of optical turbulence measured through a single beam holographic process