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Proceedings Paper

Dependence of characteristics of dynamic laser speckle patterns from roughness
Author(s): V. I. Bronnikov
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Paper Abstract

Is shown, that the field of a wave by a scattered rough surface, has the spatial distribution similar to a field of a diffraction wave on an aperture, conterminous under the form and the size with illuminated area. A maximal intensity in diffractive orders form speckle pattern. Dependence of a time spectrum of intensity fluctuations, of scattered radiation by a moving surface from size of a roughness is received. With use of dynamic speckles experimental measurement of base lengths and a root-mean-square roughness on these lengths is lead. Results of experiment have confirmed the offered model of a scattering and have shown an opportunity of simultaneous definition of ensembles of statistical parameters of a roughness.

Paper Details

Date Published: 10 April 2007
PDF: 9 pages
Proc. SPIE 6613, Laser Optics 2006: Wavefront Transformation and Laser Beam Control, 66130H (10 April 2007); doi: 10.1117/12.739996
Show Author Affiliations
V. I. Bronnikov, Scanning Lasers Ltd. (Russia)

Published in SPIE Proceedings Vol. 6613:
Laser Optics 2006: Wavefront Transformation and Laser Beam Control
Leonid N. Soms, Editor(s)

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