Laser cleaning of gilded wood: A comparative study of colour variations induced by irradiation at different wavelengths

Anno: 2007

Autori: Acquaviva S., D’Anna E., De Giorgi M.L., Della Patria A., Pezzati L., Pasca D., Vicari L., Bloisi F., Califano V.

Affiliazione autori: 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.


Volume: 253 (19)      Da Pagina: 7715  A: 7718

Parole chiavi: Laser cleaning; Gilded wood; Nd:YAG lasers
DOI: 10.1016/j.apsusc.2007.02.178

Citazioni: 3
dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2024-02-25
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