Spectroscopic Characterisation of Laser-Induced Effects on Modern Paint Layers
Spectroscopic Characterisation of Laser-Induced Effects on Modern Paint Layers
- Author(s): D. Ciofini and S. Siano
- DOI: 10.1049/cp.2016.0959
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- Author(s): D. Ciofini and S. Siano Source: 18th Italian National Conference on Photonic Technologies (Fotonica 2016), 2016 page ()
- Conference: 18th Italian National Conference on Photonic Technologies (Fotonica 2016)
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- DOI: 10.1049/cp.2016.0959
- ISBN: 978-1-78561-268-8
- Location: Rome, Italy
- Conference date: 6-8 June 2016
- Format: PDF
In this work, Vis-NIR steady-state photoluminescence (PL) emission and Vis-NIR reflection spectroscopy were used in order to investigate the effects induced on modern paint layers by LQS Nd:YAG(1064 nm) laser at subablative fluences. Cadmium yellow (Cdy), lithopone white (Liw) and chromium oxide green (Crg) pigments with and without oil matrix were investigated. The setup proposed allowed collecting reliable information on PL, color and morphology changes upon laser irradiation. Furthermore, the results achieved led to recognize, for the first time, the oil matrix alteration as the early trigger of the photothermal effects.
Inspec keywords: visible spectra; laser beam effects; laser ablation; infrared spectra; photoluminescence; paints
Subjects: Laser beam characteristics and interactions; Photoluminescence (condensed matter); Ultraviolet, visible and infrared radiation effects; Laser materials processing; Infrared and Raman spectra and scattering (condensed matter); Visible and ultraviolet spectra (condensed matter)
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