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Proceedings Paper

Optical exploration of micro/nanoscale irregularities created on metallic surfaces by femtosecond laser irradiation
Author(s): H. Ahmadi Rashtabadi; M. Mollabashi; S. Razi
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Paper Abstract

In this paper, we suggest a direct method based on light scattering and Beckmann formulation for the coarse surface RMS roughness and correlation length measurements. Metallic steel samples irradiated under controlled interaction conditions with ultrafast femtosecond laser system are selected as the random rough surfaces for investigation. Stabilized low-intensity He-Ne laser and an appropriate power meter are selected as the main elements of the experimental measurement probe. The light source and detector are located symmetrically around the surface normal and the reflected light is collected to be used in Beckmann formulation. In this regard, the dependency of the surface scattering to the illumination angle is also investigated. Atomic Force Microscopy and Scanning Electron Microscopy are utilized as standard common methods to extract the surface features and check the reliability of the theoretical approach.

Paper Details

Date Published: 26 June 2017
PDF: 5 pages
Proc. SPIE 10329, Optical Measurement Systems for Industrial Inspection X, 103293T (26 June 2017); doi: 10.1117/12.2270102
Show Author Affiliations
H. Ahmadi Rashtabadi, Iran Univ. of Science and Technology (Iran, Islamic Republic of)
M. Mollabashi, Iran Univ. of Science and Technology (Iran, Islamic Republic of)
S. Razi, Urmia Univ. of Technology (Iran, Islamic Republic of)

Published in SPIE Proceedings Vol. 10329:
Optical Measurement Systems for Industrial Inspection X
Peter Lehmann; Wolfgang Osten; Armando Albertazzi Gonçalves Jr., Editor(s)

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