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Terahertz pulse imaging in archaeology

Jackson, B., Labaune, J., Bailleul-Lesuer, R., D'alessandro, L., Whyte, A., Bowen, J., Menu, M. and Mourou, G. (2015) Terahertz pulse imaging in archaeology. Frontiers of Optoelectronics, 8 (1). pp. 81-92. ISSN 2095-2767

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To link to this item DOI: 10.1007/s12200-014-0446-y

Abstract/Summary

The work presented in this article was performed at the Oriental Institute at the University of Chicago, on objects from their permanent collection: an ancient Egyptian bird mummy and three ancient Sumerian corroded copper-alloy objects. We used a portable, fiber-coupled terahertz time-domain spectroscopic imaging system, which allowed us to measure specimens in both transmission and reflection geometry, and present time- and frequency-based image modes. The results confirm earlier evidence that terahertz imaging can provide complementary information to that obtainable from x-ray CT scans of mummies, giving better visualisation of low density regions. In addition, we demonstrate that terahertz imaging can distinguish mineralized layers in metal artifacts.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Biological Sciences > Department of Bio-Engineering
ID Code:37216
Uncontrolled Keywords:terahertz, time-domain imaging, spectroscopy, non-destructive evaluation, archaeology
Publisher:Springer

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