Ultrafast laser cleaning of museum artifacts

A. V. Rode, N. R. Madsen, E. G. Gamaly, B. Luther-Davies, K. G.H. Baldwin, D. Hallam, A. Wain, J. Hughes

Research output: A Conference proceeding or a Chapter in BookChapter

2 Citations (Scopus)

Abstract

A new method oflaser ablation, having high pulse-rate of the order of MHz, with short ps and sub-ps pulses, has been recently developed at the ANU. As a preliminary test for the short-pulse ablation applied to art conservation for selective removal of unwanted surface layers, we used the ps laser to clean brass samples coated with contaminant layers such as rust, paint and wax. We demonstrated the laser cleaning system with 2nd2=532nm) and 4th4=266nm) harmonics of a Nd: YVO4 ultra-fast laser, combined with a constantvelocity scanning system. Great flexibility in cleaning the surfaces selectively was demonstrated by removal of the wax coating from the black-painted surface without altering the black paint surface sub-structure. Major conservation and restoration challenges were considered where ultrafast laser cleaning might playa vital role.

Original languageEnglish
Title of host publicationLaser Cleaning II
EditorsD.M. Kane
Place of PublicationUnited States
PublisherWorld Scientific Publishing Co.
Chapter12
Pages219-230
Number of pages12
ISBN (Electronic)9789812706843
ISBN (Print)9789812703729
DOIs
Publication statusPublished - 1 Jan 2007

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    Rode, A. V., Madsen, N. R., Gamaly, E. G., Luther-Davies, B., Baldwin, K. G. H., Hallam, D., Wain, A., & Hughes, J. (2007). Ultrafast laser cleaning of museum artifacts. In D. M. Kane (Ed.), Laser Cleaning II (pp. 219-230). World Scientific Publishing Co.. https://doi.org/10.1142/9789812706843_0011