Nonlinear imaging and THz diagnostic tools in the service of Cultural Heritage
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- Filippidis, G., Massaouti, M., Selimis, A. et al. Appl. Phys. A (2012) 106: 257. doi:10.1007/s00339-011-6691-7
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We present the use of novel nonlinear imaging, terahertz time-domain spectroscopy and imaging as powerful diagnostic tools for studies of works of art. It is shown that nonlinear imaging offers precise in-depth information, while terahertz imaging can reveal hidden objects and uncover information on highly absorbing organic compounds whose visualization is difficult in other parts of the spectrum.