The two-wavelength laser cleaning methodology; theoretical background and examples from its application on CH objects and monuments with emphasis to the Athens Acropolis sculptures

An innovative two-wavelength laser cleaning methodology has been successfully applied to preserve the surface details and historic traces of cultural heritage (CH) objects, including the iconic sculptures of the Athens Acropolis. This approach combines dual laser beams to precisely control ablation processes, ensuring efficient yet safe removal of pollution without damaging the original material. Developed by IESL-FORTH in collaboration with the Acropolis Restoration Service and Museum, this methodology has been refined through extensive studies on technical samples and real fragments since 2002, marking a significant advancement in conservation practices for fragile monuments.

Pouli, P., Papakonstantinou, E., Frantzikinaki, K., Panou, A., Frantzi, G., Vasiliadis, C., & Fotakis, C. (2016). The two-wavelength laser cleaning methodology; theoretical background and examples from its application on CH objects and monuments with emphasis to the Athens Acropolis sculptures. Heritage Science, 4(1). https://doi.org/10.1186/s40494-016-0077-2