Comparative evaluation of ultrafast laser beam interaction with the silvering in late Roman coins

A Review of Energy Dispersive X-Ray Fluorescence (EDXRF) as an Analytical Tool in Numismatic Studies

“…Likewise, a work presented by Serafetinides et al 20 investigated the influence of the pulse duration and the optimum wavelength on the laser cleaning of the surface of silver plated Roman coins (260-315 A.D.). That was determined by a comparative evaluation of cleaning results produced by four different laser systems.…”

Evaluation of laser cleaning for the restoration of tarnished silver artifacts

“…The application of lasers in conservation faces the challenge to deal with some issues, among others the preservation of the original surface and the formation of unwanted laser induced alteration layers [26,27]. Most of the previous studies have been focused on the laser irradiation effects, using different wavelengths and pulse duration, on the corrosion layer and on the underlying material after a single laser treatment [28][29][30][31][32][33][34]. However, the effects associated with successive laser cleaning treatments on tarnished silver objects have not been addressed before.…”