25 April 2007 Non-destructive speckle interferometry diagnosis method for art conservation
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Proceedings Volume 6606, Advanced Laser Technologies 2006; 66060W (2007) https://doi.org/10.1117/12.729653
Event: Advanced Laser Technologies 2006, 2006, Brasov, Romania
Abstract
We describe a field non-destructive Digital Speckle Pattern Interferometry diagnosis method to be applied in art conservation works, using as the light source a home-made single-frequency pulsed micro-laser oscillator-amplifier system. The green nanosecond laser-pulses are directed towards an interferometer set-up, where a beam splitter cube divides the incoming beam to define the object, respectively the reference beams. The object beam illuminates the artwork target and a CCD camera records the scattered light. The reference beam is directly coupled into the camera head. The operation of the integrated system is governed by dedicated software, able to acquire and process the speckle pattern images as to detect and locate the defects on the investigated artwork. The method was successfully applied inlab and in-situ conditions. The results are illustrated for a variety of investigated artworks.
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Vivi Tornari, Y. Orphanos, R. Dabu, C. Blanaru, A. Stratan, D. Ursu, "Non-destructive speckle interferometry diagnosis method for art conservation", Proc. SPIE 6606, Advanced Laser Technologies 2006, 66060W (25 April 2007); doi: 10.1117/12.729653; https://doi.org/10.1117/12.729653
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