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.
@article{arxiv.2002.12132,
title = {A non-invasive investigation of Limoges enamels using both Optical Coherence Tomography (OCT) and spectral imaging: a pilot study},
author = {Margaret Read and Chi Shing Cheung and Denise Ling and Capucine Korenberg and Andrew Meek and Sotiria Kogou and Haida Liang},
journal= {arXiv preprint arXiv:2002.12132},
year = {2020}
}