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arXiv · 2002.12132

A non-invasive investigation of Limoges enamels using both Optical Coherence Tomography (OCT) and spectral imaging: a pilot study

Margaret Read·Chi Shing Cheung·Denise Ling·Capucine Korenberg·Andrew Meek·Sotiria Kogou·Haida Liang
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Abstract

This paper investigates the use of Optical Coherence Tomography (OCT) and Short-wave Infrared (SWIR) spectral imaging to study the deterioration of a Limoges enamel panel. Limoges enamels are formed of glass layers applied on a metal substrate and are prone to glass disease. However, the level of deterioration in Limoges enamels is generally difficult to assess visually. In this study, SWIR was used to produce a hydration level map of the enamel, which was coupled with virtual OCT cross-sections. The study shows a good correlation between levels of hydration and structural damage over the enamel panel. Hydration mapping allows visualisation of structural damage across the entire enamel in one image.

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Margaret Read, Chi Shing Cheung, Denise Ling, Capucine Korenberg, Andrew Meek, Sotiria Kogou, Haida Liang. 2020-02-25. A non-invasive investigation of Limoges enamels using both Optical Coherence Tomography (OCT) and spectral imaging: a pilot study. https://doi.org/10.1117/12.2527092

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