Fig. 3From: The two-wavelength laser cleaning methodology; theoretical background and examples from its application on CH objects and monuments with emphasis to the Athens Acropolis sculpturesSeries of laser irradiation experiments to remove thin pollution crust from marble in single, sequential and synchronous use of the two wavelengths (IR at 1064 nm and UV at 355 nm). Each square has been irradiated with four pulses and its dimension is about 2 × 2 cmBack to article page