Goya's artwork imaging with Terahertz waves.

@article{SecoMartorell2013GoyasAI,
  title={Goya's artwork imaging with Terahertz waves.},
  author={C Seco-Martorell and V{\'i}ctor L{\'o}pez-Dom{\'i}nguez and Gianluca Arauz-Garofalo and Albert Redo-Sanchez and Jos{\'e} Palacios and Jose Tejada},
  journal={Optics express},
  year={2013},
  volume={21 15},
  pages={17800-5}
}
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… CONTINUE READING
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