30 June 2015 Ultrafast pump-probe dynamics of iron oxide based earth pigments for applications to ancient pottery manufacture
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Abstract
We demonstrate that ultrafast pump-probe microscopy provides unique dynamics for natural iron oxide and iron hydroxide earth pigments, despite their chemical similarity. First, we conducted a pump-probe spectroscopy study on heat-treated hematite (the pure red iron oxide mineral) and found the pump-probe dynamics to be temperature dependent. Second, we investigated pottery fired under known conditions and observed firing dependent pump-probe dynamics. Finally, we imaged a New World potshard from the North Carolina Museum of Art. Our results indicate that pump-probe microscopy could be a useful tool in elucidating pottery manufacture.
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Tana Elizabeth Villafana, Tana Elizabeth Villafana, William Brown, William Brown, Warren S. Warren, Warren S. Warren, Martin Fischer, Martin Fischer, } "Ultrafast pump-probe dynamics of iron oxide based earth pigments for applications to ancient pottery manufacture", Proc. SPIE 9527, Optics for Arts, Architecture, and Archaeology V, 952709 (30 June 2015); doi: 10.1117/12.2184758; https://doi.org/10.1117/12.2184758
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