Laser-induced chemical changes in art materials

Margaret H. Abraham; Stefanie Scheerer; Odile Madden; Fran Adar

doi:10.1117/12.445646

22 October 2001 Laser-induced chemical changes in art materials

Margaret H. Abraham, Stefanie Scheerer, Odile Madden, Fran Adar

Proceedings Volume 4402, Laser Techniques and Systems in Art Conservation; (2001) https://doi.org/10.1117/12.445646
Event: Lasers in Metrology and Art Conservation, 2001, Munich, Germany

Abstract

Lasers can induce subtle and not so subtle changes in material structure. We have found that certain pigments can undergo chemical and crystallographic changes and concomitant color shifts. Minerals and the related pigments may experience a loss of hydroxyl groups or other chemical reordering. The organic component of skeletal, keratinaceous, and cellulosic materials can be pyrolized, ablated, or etched. Polymers can discolor, undergo structural weakening, or be volatilized. A few of these processes have been investigated with regards to changes on ivory and bone, selected pigments and the removal of dye-based pen ink from porous substrates.

Citation Download Citation

Margaret H. Abraham, Stefanie Scheerer, Odile Madden, and Fran Adar "Laser-induced chemical changes in art materials", Proc. SPIE 4402, Laser Techniques and Systems in Art Conservation, (22 October 2001); https://doi.org/10.1117/12.445646

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