publication . Article . Preprint . 2014

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

Ewelina Ortyl; Darío G. Pérez; Yohann Morille; Sonia Zielińska; Regis Barille;
Open Access English
  • Published: 01 Jan 2014
  • Publisher: HAL CCSD
  • Country: France
We have previously shown that azopolymer thin films exposed to coherent light that has travelled through a turbulent medium produces a surface relief grating containing information about the intensity of the turbulence; for instance, a relation between the refractive index structure constant C2 as a function of the surface parameters was obtained. In this work, we show that these films capture much more information about the turbulence dynamics. Multifractal detrended fluctuation and fractal dimension analysis from images of the surface roughness produced by the light on the azopolymer reveals scaling properties related to those of the optical turbulence.
arXiv: Physics::Fluid Dynamics
free text keywords: OCIS codes: (0101300) Atmospheric propagation, (0101330) Atmospheric turbulence, (0501950) Diffraction gratings, (0902890) Holographic optical elements, (2804991) Passive remote sensing, (2800280) Remote sensing and sensors, [PHYS]Physics [physics], Physics - Optics, Refractive index, Holography, law.invention, law, Diffraction grating, Multifractal system, Turbulence, Scaling, Optics, business.industry, business, Coherence (physics), Physics, Surface roughness
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