Optics.org
daily coverage of the optics & photonics industry and the markets that it serves
Menu
terahertz imaging for non-destructive evaluation of mural paintings

The graphite image of a butterfly, extracted from between plaster layers, is clearly recognisable.

Time-domain power integration of THz-beam reflection from plaster/graphite/plaster interface.

Image credit: John Whitaker

Copyright © 2022 SPIE EuropeDesigned by Kestrel Web Services