Laser cleaning of gilded wood: A comparative study of colour variations induced by irradiation at different wavelengths
Authors: Acquaviva S., D’Anna E., De Giorgi M.L., Della Patria A., Pezzati L., Pasca D., Vicari L., Bloisi F., Califano V.
Autors Affiliation: Department of Physics, University of Lecce, via Arnesano, 73100 Lecce, Italy; CNR – Istituto Nazionale di Ottica Applicata, Arnesano (Lecce), Italy;
CNR – Istituto Nazionale di Ottica Applicata, Largo E. Fermi 6, 50125 Firenze, Italy;
CETMA c/o cittadella della Ricerca,
Department of Physics, ‘‘Federico II’’ University of Napoli, Italy
Abstract: There is a growing interest by art conservators for laser cleaning ofwood artworks, since traditional cleaningwith chemical solvents can be a source of decay, due to the prolonged action of chemicals after the restoration. In this experimentweused excimer andNd:YAGlasers,emitting radiation in the ultraviolet (248 nm), visible (532 nm) and near infrared (1064 nm), to investigate the effect of laser interaction on gilded wood samples at different wavelengths. Increasing fluence levels were tested to assess threshold values both for surface damage and colour changes. Detailed colorimetric analyses of the irradiated samples show that cleaning effectiveness is related to the emission wavelength, the fluence and the number of pulses.
Journal/Review: APPLIED SURFACE SCIENCE
Volume: 253 (19) Pages from: 7715 to: 7718
KeyWords: Laser cleaning; Gilded wood; Nd:YAG lasersDOI: 10.1016/j.apsusc.2007.02.178Citations: 3data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2023-11-26References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here