Raman spectroscopy of modern art: classification and identification of Azo-pigments

Peter Vandenabeele; Luc Moens; Howell G.M. Edwards

doi:10.1117/12.401642

29 September 2000 Raman spectroscopy of modern art: classification and identification of Azo-pigments

Peter Vandenabeele, Luc Moens, Howell G.M. Edwards

Proceedings Volume 4098, Optical Devices and Diagnostics in Materials Science; (2000) https://doi.org/10.1117/12.401642
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

Abstract

Micro-Raman spectroscopy is an important molecular spectroscopic technique for the non-destructive examination of objects of art. In this work, Raman spectra of a number of Azo-pigments are presented, which are important artists' pigments in contemporary artifacts. The Azo-pigments, being a group of cheap pigments with good painting properties, form an important subgroup of pigments that became available to the artists at the end of the 19th and the beginning of the 20th century. A classification for these Azo-pigments is presented, which is based on their chemical properties, reflected in their molecular Raman spectrum. It is shown that a close spectral examination can help in assigning the unknown pigment to a class of pigments and thus assist in the identification of the painting material.

Citation Download Citation

Peter Vandenabeele, Luc Moens, and Howell G.M. Edwards "Raman spectroscopy of modern art: classification and identification of Azo-pigments", Proc. SPIE 4098, Optical Devices and Diagnostics in Materials Science, (29 September 2000); https://doi.org/10.1117/12.401642

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