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Proceedings Paper

Spatial structure of radiation, scattered rough surface, and dependence of performances of dynamic speckle on size of 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 diffraction of a 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, scattered by a moving surface of radiation, a spectrum of a dynamic speckle-structure, from size of a roughness is received. With use of dynamic speckles experimental measurement of base lengths and sizes of 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 measurement of values of several base lengths and sizes of a roughness on the measured lengths.

Paper Details

Date Published: 11 January 2007
PDF: 9 pages
Proc. SPIE 6594, Lasers for Measurements and Information Transfer 2006, 65940L (11 January 2007); doi: 10.1117/12.725602
Show Author Affiliations
V. I. Bronnikov, Scanning Lasers Ltd. (Russia)

Published in SPIE Proceedings Vol. 6594:
Lasers for Measurements and Information Transfer 2006

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