Thermoluminescence dating


27-Jun-2019 08:42

Today, Raman spectroscopy is a fast-growing technique, not only because of the analytical information it provides, but also because it is non-invasive, non-destructive, and fast — and therefore very useful for art examination.

Radiation scattered by molecules contains photons with the same frequency as the incident monochromatic radiation (laser) (orange in the diagram), but also contains photons with shifted frequency (red in the diagram), the Raman radiation.

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Raman spectrometers are typically coupled with a microscope in order to observe the sample and can take a Raman spectrum from a small area down to 1micron, which is the usual dimension of artists’ pigments.

Raman spectroscopy is non-invasive, non-destructive, and fast.