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Proceedings Paper

Surface roughness determination by digital laser speckle spectral correlation: Fresnel approximation of scalar Kirchhoff theory
Author(s): Miloslav Ohlidal; Dominik Prazak
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Paper Abstract

Correlation of laser speckle fields generated by light of two different wavelengths, which illuminates a randomly rough surface, is solved within the framework of the scalar Kirchhoff theory of wave scattering from random rough surfaces. The Fresnel approximation is used in description of the scattered wave. The solution obtained is applied to surface roughness determination.

Paper Details

Date Published: 19 November 2003
PDF: 2 pages
Proc. SPIE 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life, (19 November 2003); doi: 10.1117/12.525511
Show Author Affiliations
Miloslav Ohlidal, Brno Univ. of Technology (Czech Republic)
Dominik Prazak, Czech Metrology Institute (Czech Republic)


Published in SPIE Proceedings Vol. 4829:
19th Congress of the International Commission for Optics: Optics for the Quality of Life
Giancarlo C. Righini; Anna Consortini, Editor(s)

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