Investigation of natural and synthetic pigments: terahertz continuous-waves spectroscopy (THz-CW) as a reliable high-resolution approach applied to the Cultural Heritage field |
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| Candida Moffa, Fernando Jr. Piamonte Magboo, Alessandro Curcio, Luigi Palumbo, Anna Candida Felici, Massimo Petrarca |
- Abstract:
- In this work, the optical properties of historically produced synthetic and natural pigments were obtained by exploiting a coherent terahertz continuous wave (THz-CW) spectroscopic system in transmission mode. In particular, these pigments were investigated for the first time in the THz spectral region within (0.1-3) THz and in a non-invasive way by a portable experimental set-up. The materials investigated in this study showed different absorption features that allowed to identify their spectral fingerprints. The results demonstrated the possibility to discriminate between molecular structures belonging to the same chemical and mineralogical class, and to distinguish synthetic pigments from natural ones thus proving that THz-CW spectroscopy can represent an innovative approach for the Cultural Heritage field.
- Download:
- IMEKO-MetroArchaeo-2023-105.pdf
- DOI:
- 10.21014/tc4-ARC-2023.105
- Event details
- IMEKO TC:
- TC4
- Event name:
- TC4 MetroArchaeo 2023
- Title:
IMEKO TC4 International Conference on Metrology for Archaeology and Cultural Heritage
- Place:
- Rome, ITALY
- Time:
- 19 October 2023 - 21 October 2023