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Optica Publishing Group
  • CLEO/Europe and IQEC 2007 Conference Digest
  • (Optica Publishing Group, 2007),
  • paper CF9_5

Two-photon induced fluorescence for archaeological applications

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Abstract

Spectroscopy techniques based on laser technology are becoming an important tool in art-conservation studies and archeology. In general, the objectives are to determine the artifact conservation, to understand how the materials were made and applied and to determine its origin and trade pattern. The most common techniques are laser induced fluorescence (LIF) [1] and Raman microscopy [2], which enable the material identification based in their emitted spectra. In this work, however, the aim was detecting, rather the characterizing, the presence of paint. The archaeological artifact was a fragment of Roman amphora (Fig. 1(a)) found in the archeological site of lesso, Spain. An inscription in the amphora corresponded to the two consuls ruling in the year of the wine production could help to provide a foundational date of this Roman city. However, the initials of the second consul were barely visible. Here we used for the first time two-photon induced fluorescence (TPIF) in archaeology, recovering the missing name

© 2007 IEEE

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