u-LIBS/u-Raman spectroscopic analysis of pigments in a Roman fresco

Bilal Al Ali; Dunja Bulajic; Michela Corsi; Gabriele Cristoforetti; Stefano Legnaioli; Leonardo F. Masotti; Vincenzo Palleschi; Azenio Salvetti; Elisabetta Tognoni

doi:10.1117/12.445670

22 October 2001 μ-LIBS/μ-Raman spectroscopic analysis of pigments in a Roman fresco

Bilal Al Ali, Dunja Bulajic, Michela Corsi, Gabriele Cristoforetti, Stefano Legnaioli, Leonardo F. Masotti, Vincenzo Palleschi, Azenio Salvetti, Elisabetta Tognoni

Author Affiliations +

Proceedings Volume 4402, Laser Techniques and Systems in Art Conservation; (2001) https://doi.org/10.1117/12.445670
Event: Lasers in Metrology and Art Conservation, 2001, Munich, Germany

Abstract

In this paper, results are reported on the analysis of a fragment of roman fresco, presumably dated from I century AD. The analysis of the pigments used in the fresco has been performed using the two complementary techniques of micro- LIBS and micro-Raman spectroscopy. Both the techniques allo for microscopic analysis of the samples: however, while micro-Raman spectroscopy gives information on the surface structure of the pigments and binders used, micro-LIBS gives quantitative information on the elemental composition of them, also allowing for stratigraphic analysis with lateral spatial resolution comparable to the micro-Raman technqiue. The joint use of (mu) -LIBS and (mu) -Raman spectroscopy allows for a complete characterization of the sample, and is particularly useful in cases when one of the techniques is not able to give by itself a clear information on the nature of the pigment under study.

Citation Download Citation

Bilal Al Ali, Dunja Bulajic, Michela Corsi, Gabriele Cristoforetti, Stefano Legnaioli, Leonardo F. Masotti, Vincenzo Palleschi, Azenio Salvetti, and Elisabetta Tognoni "μ-LIBS/μ-Raman spectroscopic analysis of pigments in a Roman fresco", Proc. SPIE 4402, Laser Techniques and Systems in Art Conservation, (22 October 2001); https://doi.org/10.1117/12.445670

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