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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 38, Iss. 7 — Apr. 1, 2013
  • pp: 1128–1130

Simple turbulence measurements with azopolymer thin films

Regis Barillé, Darío G. Pérez, Yohann Morille, Sonia Zielińska, and Ewelina Ortyl  »View Author Affiliations

Optics Letters, Vol. 38, Issue 7, pp. 1128-1130 (2013)

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A simple method to measure the influence on the laser beam propagation by a turbid medium is proposed. This measurement is based on the inscription of a surface relief grating (SRG) on an azopolymer thin film. The grating obtained with a single laser beam after propagation into a turbulent medium is perturbed and directly analyzed by a CCD camera through its diffraction pattern. Later, by scanning the surface pattern with an atomic force microscope, the inscribed SRG is analyzed with the Radon transform. This method has the advantage of using a single beam to remotely inscribe a grating detecting perturbations during the beam path. A method to evaluate the refractive index constant structure is developed.

© 2013 Optical Society of America

OCIS Codes
(010.1300) Atmospheric and oceanic optics : Atmospheric propagation
(010.1330) Atmospheric and oceanic optics : Atmospheric turbulence
(050.1950) Diffraction and gratings : Diffraction gratings
(090.2890) Holography : Holographic optical elements
(280.0280) Remote sensing and sensors : Remote sensing and sensors

ToC Category:
Diffraction and Gratings

Original Manuscript: November 28, 2012
Revised Manuscript: February 26, 2013
Manuscript Accepted: February 26, 2013
Published: March 26, 2013

Regis Barillé, Darío G. Pérez, Yohann Morille, Sonia Zielińska, and Ewelina Ortyl, "Simple turbulence measurements with azopolymer thin films," Opt. Lett. 38, 1128-1130 (2013)

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