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Proceedings Paper

The potential of Raman spectroscopy in glass studies
Author(s): Kitty Baert; Wendy Meulebroeck; Andrea Ceglia; Hilde Wouters; Peter Cosyns; Karin Nys; Hugo Thienpont; Herman Terryn
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Paper Abstract

Raman spectroscopy is presented as a suitable and fast non-destructive technique to obtain qualitative information about glass samples of various origins (ancient and modern/industrial glass). A first application is the broad corpus of archaeological window glass that still needs to be investigated. For many sites, archaeologists have to deal with large collections of excavated glass samples and a selection of the most appropriate samples for chemical analysis is necessary. A fast classification can be made based on Raman spectra: different kind of glasses (Alkali-glass, High Lime-Low Alkali glass (HLLA)) have their own typical Raman signature. Even for glasses giving strong fluorescence, a classification is possible after a simple treatment of the Raman data. Raman spectroscopy has also been utilized to identify iron containing glasses. The effect of the iron content in glass samples is reflected on the topology of the Raman spectra: a strong link between the ratio of the Q2/Q3 vibration units of the silica tetrahedral structure is seen. Even (semi-) quantitative results can be determined from calibration lines if matrix effects are taken into account (similar glasses). In amber colored glasses, an extra peak ~415cm-1 in the Raman spectra indicates the presence of a Fe-S chromophore. Finally, in the fluorescent signals of some yellow and red glasses two peaks of Zn-Se-Cd-S nanocrystals have been identified.

Paper Details

Date Published: 7 November 2012
PDF: 9 pages
Proc. SPIE 8422, Integrated Approaches to the Study of Historical Glass, 842207 (7 November 2012); doi: 10.1117/12.981648
Show Author Affiliations
Kitty Baert, Vrije Univ. Brussel (Belgium)
Wendy Meulebroeck, Vrije Univ. Brussel (Belgium)
Andrea Ceglia, Vrije Univ. Brussel (Belgium)
Hilde Wouters, Vrije Univ. Brussel (Belgium)
Peter Cosyns, Vrije Univ. Brussel (Belgium)
Karin Nys, Vrije Univ. Brussel (Belgium)
Hugo Thienpont, Vrije Univ. Brussel (Belgium)
Herman Terryn, Vrije Univ. Brussel (Belgium)

Published in SPIE Proceedings Vol. 8422:
Integrated Approaches to the Study of Historical Glass
Hugo Thienpont; Wendy Meulebroeck; Karin Nys; Dirk Vanclooster, Editor(s)

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