Comparative evaluation of ultrafast laser beam interaction with the silvering in late Roman coins

A. A. Serafetinides, E. Drakaki, E. Fabrikesi, M. Kandyla, I. Zergioti, C. Vlachou-Mogire, R. R. Thomson, A. K. Kar, N. Boukos, A. G. Karydas

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

This work investigates the influence of the pulse duration and the wavelength on the laser cleaning of thin silver plating layers found in late Roman coins. Comparative cleaning tests were performed using Nd:YAG (1064 nm and 532 nm - 6 ns), GaAlAs diode (780 nm - 90 ps) and Ti-Sapphire regenerative amplifier (800 nm - 100 fs) laser systems. The cleaning results on the plated areas were characterised by high resolution optical microscopy, SEM-EDX, XRF and micro-profilometry. © 2009 SPIE.

Original languageEnglish
Title of host publicationO3A: Optics for Arts, Architecture, and Archaeology II
Volume7391
DOIs
Publication statusPublished - 2009
EventEuropean Quantum Electronics Conference 2009 - Munich, Germany
Duration: 14 Jun 200919 Jun 2009

Conference

ConferenceEuropean Quantum Electronics Conference 2009
Abbreviated titleEQEC 2009
CountryGermany
CityMunich
Period14/06/0919/06/09

Keywords

  • Archeological metals
  • Bronze
  • GaAlAs diode laser
  • Laser cleaning
  • Nd:YAG lasers
  • Roman coins
  • Silver
  • Ti-Sapphire laser

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