The secrets of 17th century artists can now be revealed, thanks to 21st century signal processing.

The secrets of 17th century artists can now be revealed, thanks to 21st century signal processing.

The paper, "Global mapping of stratigraphy of an old-master painting using sparsity-based terahertz reflectometry," is the sixth most read physics paper (out of more than 3,000) in 2017 in the Nature Publishing Group journal, Scientific Reports.

On Friday 6 September, Prof. David Citrin gave a seminar “Teasing out the hidden layers of an old master painting using terahertz imaging” at the Center for Research and Restoration of Museums of France located in the basement of the Palais du Louvre.