Publications [#328175] of Warren S. Warren

Journal Articles

1. Villafana, TE; Brown, W; Warren, WS; Fischer, M, Ultrafast pump-probe dynamics of iron oxide based earth pigments for applications to ancient pottery manufacture, Proceedings of SPIE the International Society for Optical Engineering, vol. 9527 (January, 2015), SPIE, ISBN 9781628416879 [doi]
   (last updated on 2026/01/14)

   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.