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Heritage Science
Fig. 5 | Heritage Science

Fig. 5

From: Dual wavelength excitation for the time-resolved photoluminescence imaging of painted ancient Egyptian objects

Fig. 5

Luminescence lifetime imaging of a mask from the Burri collection. Left panel False colour map of the PL lifetime reconstructed on details of the stone mask following 532 nm pulsed laser excitation. The map, superimposed on the visible-induced NIR-PL image, outlines the use of the Egyptian blue pigment for decorating the mask’s hair and eyes. Right panel related distribution of lifetime values in the mask, showing a unimodal behaviour with a mean lifetime of 121.3 µs (6.6 µs interquartile range)

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