2026-06-21T17:48:08Zhttps://riubu.ubu.es/oai/requestoai:riubu.ubu.es:10259/79242023-11-03T07:50:03Zcom_10259.4_2502com_10259.4_2477com_10259.4_106com_10259_2604col_10259_7074
Repositorio Institucional de la Universidad de Burgos
author
Maingi, Evan Maina
author
Alonso Abad, Mª Pilar
author
Fuente Leis, Germán F. de la
author
Dubernet, Stéphan
author
Chapoulie, Rémy
author
Vally, Elodie
author
Angurel Lámban, Luis Alberto
2023-11-02T13:03:02Z
2023-11-02T13:03:02Z
2023-04
1296-2074
http://hdl.handle.net/10259/7924
10.1016/j.culher.2023.03.005
Laser irradiation enables the removal of unwanted surface deposits from different materials in a safe and
controllable manner. Laser parameters should be carefully selected to achieve the removal of the target
contaminants without inducing damage to the substrate. Ultra-short pulse lasers have opened new opportunities for safe and controlled decontamination of cultural heritage materials because the thickness of material that is affected by the laser is limited. In this study, an ultraviolet femtosecond pulsed laser was
used for the removal of unwanted encrustation formed on the surface of an historical colourless stainedglass sample from the Cuenca Cathedral in Spain. One of the sides of this glass exhibits a reddish-brown grisaille that also has to be preserved. A laser cleaning process has been designed to avoid heat accumulation while controlling the thickness of ablated material. In this context, a multi-step process was selected in order to be able to eliminate, in a controlled way, the crust layer without damaging the grisaille layer, or the glass substrate. In this case, laser irradiation in beam scanning mode with a pulse repetition frequency of 10 kHz proved to be effective for the safe cleaning of the glass. The latter was analysed before and after laser cleaning by optical and confocal microscopy, scanning electron microscopy, energy dispersive X-ray spectroscopy, X-ray fluorescence, and Raman spectroscopy, confirming that the crust layer was effectively eliminated without damaging the surface.
eng
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Conservation
Cultural heritage
Stained-glass
Ultra-short pulse lasers
Laser cleaning
UV femtosecond laser cleaning of encrusted historical stained-glasses
info:eu-repo/semantics/article
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URL
https://riubu.ubu.es/bitstream/10259/7924/1/Maingi-jch_2023.pdf
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Maingi-jch_2023.pdf