| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10146568 | Optics and Lasers in Engineering | 2019 | 6 Pages |
Abstract
In this work we present a study of light depolarization by an oriented rough surface. A polarized laser beam shines samples with different roughness in two different ranges and the intensity of depolarized light at normal direction is monitored. We show the applicability of Cross-Polarization Ratio (CPR) analysis, previously applied to random rough surfaces, for oriented rough surface. In addition, we observed a clear dependence of the depolarized light intensity by respect the sample's mean roughness (Ra) for both analyzed roughness range. Our results consist in a proof of principle for indirect roughness measurement of metallic samples and intend to be a potential application in industrial production line, once Ra can be related directly with an intensity measurement in a fast way.
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Physical Sciences and Engineering
Engineering
Electrical and Electronic Engineering
Authors
A.L.P. Camargo, C.E. Fellows, M.R. Lemos, M.M. Mello, L. da Silva, J.A.O. Huguenin,