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Ultrafast Laser Cleaning of Daguerreotypes
Published online by Cambridge University Press: 12 April 2011
Abstract
An ultrafast laser irradiation method for the removal of corrosion from Daguerreotypes without detrimentally affecting image quality has been developed. Corrosion products such as silver oxide and silver sulfide may be removed by chemical cleaning but these reactions are hard to control and are often damaging to the underlying silver, ruining the image. The Ti:Sapphire 150 fs laser pulses used in this study are focused to a beam diameter of 60 μm and are normally incident to the Daguerreotype. It was found that the corrosion layer has a lower material removal threshold than silver allowing for removal of corrosion with minimal removal of vital information contained in the silver substrate.
Keywords
- Type
- Research Article
- Information
- MRS Online Proceedings Library (OPL) , Volume 1319: Symposium WW – Materials Issues in Art and Archaeology IX , 2011 , mrsf10-1319-ww04-03
- Copyright
- Copyright © Materials Research Society 2011
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