Observation of Sub-fractal Behaviour in a Light-scattering System
- 1 October 1984
- journal article
- Published by Taylor & Francis in Optica Acta: International Journal of Optics
- Vol. 31 (10) , 1185-1196
- https://doi.org/10.1080/713821410
Abstract
The results are reported of an experimental investigation of optical scintillation generated when laser light is scattered by a turbulently mixing layer of brine and pure water. Non-gaussian intensity statistics have been measured as a function of propagation distance in the Fresnel region and as a function of illuminated area and scattering angle in the Fraunhofer region. A characteristic power-law dependence on the illuminated area of the far-field contrast is found, suggesting that the slope of the scattered wavefront may be self-affine over a significant range of length scales.Keywords
This publication has 19 references indexed in Scilit:
- Non-gaussian image plane speckle: Measurements from diffusers of known statisticsOptics Communications, 1983
- Non-Gaussian scattering by a random phase screenApplied Physics B Laser and Optics, 1981
- Root-mean-square difference between the intensities of non-Gaussian speckle at two different wavelengthsJournal of the Optical Society of America, 1981
- Interferometric analysis of deep random-phase screensOptics Letters, 1980
- Equations of motion in linearised gravity: IV. External fieldsJournal of Physics A: General Physics, 1979
- Speckle from a rough surface when the illuminated region contains few correlation areas: The effect of changing the surface height varianceOptics Communications, 1979
- Measurement of surface roughness properties using speckle patterns with non-gaussian statisticsOptics Communications, 1978
- Correlation function dependence of the scintillation behind a deep random phase screenJournal of Physics A: General Physics, 1977
- Non-Gaussian fluctuations in electromagnetic radiation scattered by a random phase screen. II. Application to dynamic scattering in liquid crystalJournal of Physics A: General Physics, 1975
- Non-Gaussian fluctuations in electromagnetic radiation scattered by random phase screen. I. TheoryJournal of Physics A: General Physics, 1975