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Ultrashort pulsed Femtosecond UV laser for selective cleaning of significant Cretaceous flints

Authors: Rahman, Md. Ashiqur; de la Fuente, Germán F.; Carretero, José Miguel; Alonso Abad, Mª Pilar; Ruiz, Marta Navazo; Alonso Alcalde, Rodrigo; Chapoulie, Rémy; +2 Authors

Ultrashort pulsed Femtosecond UV laser for selective cleaning of significant Cretaceous flints

Abstract

This work reports on studies aimed to evaluate the utilization of ultrashort 238 fs (fs) pulsed UV laser emission at 343 nm for eliminating colored crusts and surface deposits on significant Cretaceous flint surfaces, in an attempt to safeguard its aesthetic appearance and archaeological value. The results indicate that fs UV lasers may be an ideal, non-contact tool for selective surface cleaning of sensitive archaeological artefacts, since they enable contaminant desorption while avoiding photothermal damage.

Project supported by H2020-MSCA-ITN-EJD/ED-ARCHMAT funding under the Marie Skłodowska-Curie Actions grant agreement, No. 766311 and by Gobierno de Aragón (research group T54_20R).

Countries
Spain, Spain
Keywords

Technology, Laser cleaning, Physics, 500, Tecnología, Física, Archaeology-Burgos, Sierra de Atapuerca, Flint, Arqueología-Burgos, Femtosecond UV laser

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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