Journal
MATERIALS LETTERS
Volume 338, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2023.134028
Keywords
Femtosecond UV laser; Laser cleaning; Flint; Sierra de Atapuerca
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This study evaluates the use of ultrashort 238 fs pulsed UV lasers at 343 nm for removing colored crusts and surface deposits on Cretaceous flint surfaces. The results suggest that these lasers can be an effective tool for cleaning sensitive archaeological artifacts, as they remove contaminants without causing thermal damage.
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.
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