Goya's artwork imaging with Terahertz waves.
In this paper we use a Terahertz (THz) time-domain system to image and analyze the structure of an artwork attributed to the Spanish artist Goya painted in 1771. The THz images show features that cannot be seen with optical inspection and complement data obtained with X-ray imaging that provide evidence of its authenticity, which is validated by other independent studies. For instance, a feature with a strong resemblance with one of Goya's known signatures is seen in the THz images. In particular, this paper demonstrates the potential of THz imaging as a complementary technique along with X-ray for the verification and authentication of artwork pieces through the detection of features that remain hidden to optical inspection.
Departament de Física Fonamental, Facultat de Física, Universitat de Barcelona, C/ Martí i Franquès 1, Planta 4, Edifici Nou, 08028 Barcelona, Spain. cseco@ubxlab.com
C
C
Seco-Martorell
V
V
López-Domínguez
G
G
Arauz-Garofalo
A
A
Redo-Sanchez
J
J
Palacios
J
J
Tejada
D008422:Materials Testing / Q000379:methods*; D010150:Paint / Q000032:analysis* / Q000145:classification*; D010151:Paintings / Q000145:classification*; D055069:Terahertz Imaging / Q000379:methods*