2026-06-17T21:38:52Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/78722023-10-17T00:05:32Zcom_10259.4_2551com_10259_5086com_10259_2604com_10259_6201col_10259.4_2552col_10259_6202

Ultrashort pulsed Femtosecond UV laser for selective cleaning of significant Cretaceous flints Rahman, Md. Ashiqur Fuente Leis, Germán F. de la Carretero Díaz, José Miguel Alonso Abad, Mª Pilar Navazo Ruiz, Marta Alonso Alcalde, Rodrigo Chapoulie, Rémy Schiavon, Nick Angurel Lámban, Luis Alberto Femtosecond UV laser Laser cleaning Flint Sierra de Atapuerca 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. 2023-10-16T11:10:14Z 2023-10-16T11:10:14Z 2023-05 info:eu-repo/semantics/article 0167-577X http://hdl.handle.net/10259/7872 10.1016/j.matlet.2023.134028 eng Materials Letters. 2023, V. 338, 134028 https://doi.org/10.1016/j.matlet.2023.134028 info:eu-repo/grantAgreement/EC/H2020/766311/EU/European Doctorate in ARchaeological and Cultural Heritage MATerials science/ED-ARCHMAT/ http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess Attribution-NonCommercial-NoDerivatives 4.0 Internacional Elsevier