The identification of chromophores in ancient glass by the use of UV-VIS-NIR spectroscopy

Using Raman spectroscopy as a tool for the detection of iron in glass

“…Figure S3 (Supporting information) shows the spectra of different colored glass fragments. A special group of samples is that which appears black [22,27] (dark olive green when visible light is sent trough), giving clear Raman spectra (Fig. 6).…”

Optical spectroscopy as a rapid and low-cost tool for the first-line analysis of glass artefacts: a step-by-step plan for Roman green glass

“…All types of colorizing metal oxides (Co, Cu, Fe, Mn,.) have characteristic absorption bands between 380 and 780 nm (Bamford, 1977;Green and Hart, 1987;Meulebroeck et al, 2010a;Mirti et al, 2000;Schreurs and Brill, 1984;Weyl, 1959). The spectral position of the absorption band depends mainly on the applied chromophore with small variations depending on the overall glass structure (Ceglia Fig.…”

Cobalt absorption bands for the differentiation of historical Na and Ca/K rich glass

“…In previous publications, our group has showed that some parameters extracted from optical spectra can be helpful in characterizing ancient glass . The identification of the colouring agents gives useful information about the raw materials, and in some cases it can help the dating, such as for the case of chromium coloured glasses .…”

“…In previous publications, our group has showed that some parameters extracted from optical spectra can be helpful in characterizing ancient glass. [29][30][31] The identification of the colouring agents gives useful information about the raw materials, and in some cases it can help the dating, such as for the case of chromium coloured glasses. [29] The colour coordinates can be related to the redox conditions of the furnace employed for glass production, while the UV absorption edge is linearly correlated to the presence of impurities such as iron.…”

“…[29][30][31] The identification of the colouring agents gives useful information about the raw materials, and in some cases it can help the dating, such as for the case of chromium coloured glasses. [29] The colour coordinates can be related to the redox conditions of the furnace employed for glass production, while the UV absorption edge is linearly correlated to the presence of impurities such as iron. [30] The objective of this paper is to extend the knowledge about the relations between the glass chemistry and the spectral position of the absorption bands of cobalt.…”