Scanning optical coherence tomography applied to the characterization of surfaces and coatings

This paper shows the technique of optical coherence tomography in the frequency domain (OCT-FD) to obtain surface topography and tomography of surface coatings. The setup is based on a superluminescent diode centered on 849 nm with an spectral wide of 50 nm as the light source, a single-mode fibre M...

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Detalles Bibliográficos
Autores principales: Cerrotta, Santiago, Morel, Eneas, Torga, Jorge
Formato: Documento de conferencia publishedVersion
Lenguaje:Inglés
Publicado: El Sevier 2020
Materias:
UTN
FRD
OCT
Low Coherence
Surfaces Characterization
Profilometry
Acceso en línea:http://hdl.handle.net/20.500.12272/4517
Aporte de:
RIA - Repositorio Institucional Abierto (UTN) de Universidad Tecnológica Nacional
id I68-R174-20.500.12272-4517
record_format dspace
institution Universidad Tecnológica Nacional
institution_str I-68
repository_str R-174
collection RIA - Repositorio Institucional Abierto (UTN)
language Inglés
topic UTN
FRD
OCT
Low Coherence
Surfaces Characterization
OCT
Profilometry
spellingShingle UTN
FRD
OCT
Low Coherence
Surfaces Characterization
OCT
Profilometry
Cerrotta, Santiago
Morel, Eneas
Torga, Jorge
Scanning optical coherence tomography applied to the characterization of surfaces and coatings
topic_facet UTN
FRD
OCT
Low Coherence
Surfaces Characterization
OCT
Profilometry
description This paper shows the technique of optical coherence tomography in the frequency domain (OCT-FD) to obtain surface topography and tomography of surface coatings. The setup is based on a superluminescent diode centered on 849 nm with an spectral wide of 50 nm as the light source, a single-mode fibre Michelson interferometer and a spectrometer as the detector system. This scheme allows having compact and robust equipments that was designed to be used in an industrial environment. With this system it can be obtain a tridimensional image acquired point by point with a maximum range of 20 mm width and length and 2 mm depth. Images obtained from the topography of metal samples and tomography of polymer based coatings is presented. Also it is shown that is possible to obtain, from these images, parameters of interest of the sample, such as roughness, flatness and characteristic distances. As an example to show the potential of the method the dimensions of a metal surface modified after laser ablation were measured from a topography image obtained with this technique. A second example presented was the image obtained of a roughness pattern made on a metal surface. Finally it was presented a tomography image of a modified polyurethane coating deposited on a metal surface. Thickness and refractive index of the coating were obtained after the image analysis.
format Documento de conferencia
publishedVersion
author Cerrotta, Santiago
Morel, Eneas
Torga, Jorge
author_facet Cerrotta, Santiago
Morel, Eneas
Torga, Jorge
author_sort Cerrotta, Santiago
title Scanning optical coherence tomography applied to the characterization of surfaces and coatings
title_short Scanning optical coherence tomography applied to the characterization of surfaces and coatings
title_full Scanning optical coherence tomography applied to the characterization of surfaces and coatings
title_fullStr Scanning optical coherence tomography applied to the characterization of surfaces and coatings
title_full_unstemmed Scanning optical coherence tomography applied to the characterization of surfaces and coatings
title_sort scanning optical coherence tomography applied to the characterization of surfaces and coatings
publisher El Sevier
publishDate 2020
url http://hdl.handle.net/20.500.12272/4517
work_keys_str_mv AT cerrottasantiago scanningopticalcoherencetomographyappliedtothecharacterizationofsurfacesandcoatings
AT moreleneas scanningopticalcoherencetomographyappliedtothecharacterizationofsurfacesandcoatings
AT torgajorge scanningopticalcoherencetomographyappliedtothecharacterizationofsurfacesandcoatings
bdutipo_str Repositorios
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