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

Md. Ashiqur Rahman,Germán F. de la Fuente,José Miguel Carretero,Mª Pilar Alonso Abad, Marta Navazo Ruiz,Rodrigo Alonso Alcalde,Rémy Chapoulie,Nick Schiavon,Luis A. Angurel

Materials Letters（2023）

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摘要

•UV fs laser is used to irradiate contaminated archaeological flint samples.•Ablation and cleaning threshold parameters are established.•Effective removal of encrustations and colored contaminants.•No damage caused on the flint surface.

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关键词

Femtosecond UV laser,Laser cleaning,Flint,Sierra de Atapuerca

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