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Proceedings Paper

u-LIBS/u-Raman spectroscopic analysis of pigments in a Roman fresco
Author(s): Bilal Al Ali; Dunja Bulajic; Michela Corsi; Gabriele Cristoforetti; Stefano Legnaioli; Leonardo F. Masotti; Vincenzo Palleschi; Azenio Salvetti; Elisabetta Tognoni
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Paper 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.

Paper Details

Date Published: 22 October 2001
PDF: 7 pages
Proc. SPIE 4402, Laser Techniques and Systems in Art Conservation, (22 October 2001); doi: 10.1117/12.445670
Show Author Affiliations
Bilal Al Ali, Univ. of Florence (Italy)
Dunja Bulajic, Istituto di Fisica Atomica e Molecolare del CNR (Italy)
Michela Corsi, Istituto di Fisica Atomica e Molecolare del CNR (Italy)
Gabriele Cristoforetti, Istituto di Fisica Atomica e Molecolare del CNR (Italy)
Stefano Legnaioli, Istituto di Fisica Atomica e Molecolare del CNR (Italy)
Leonardo F. Masotti, Univ. of Florence (Italy)
Vincenzo Palleschi, Istituto di Fisica Atomica e Molecolare del CNR (Italy)
Azenio Salvetti, Istituto di Fisica Atomica e Molecolare del CNR (Italy)
Elisabetta Tognoni, Istituto di Fisica Atomica e Molecolare del CNR (Italy)


Published in SPIE Proceedings Vol. 4402:
Laser Techniques and Systems in Art Conservation

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