Luminescence from pigments and resins for oil paintings induced by laser excitation

Autor:	Roberta Fantoni, Anna Giardini Guidoni, Tonia M. Di Palma, C. Flamini, Aldo Mele, Ilaria Borgia
Rok vydání:	1998
Předmět:	Materials science Streak camera Relaxation (NMR) Analytical chemistry General Physics and Astronomy Surfaces and Interfaces General Chemistry Condensed Matter Physics Laser Surfaces Coatings and Films law.invention law Charge-coupled device Irradiation Emission spectrum Luminescence Excitation
Zdroj:	Applied Surface Science. :95-100
ISSN:	0169-4332
DOI:	10.1016/s0169-4332(97)00616-8
Popis:	The present work reports results of an extensive study of laser induced luminescence by tripled Nd:YAG laser ( λ =355 nm) of a few most common painting materials, namely, natural and synthetic pigments and resins. The luminescence spectra have been analyzed by an Optical Multichannel Analyzer (OMA III). Luminescence time decay has been measured by a Streak camera or by the OMA III. Pigments and resins show characteristic emission spectra with bands peaking in the visible. The decay ranges from less than 1 ns up to 700 μ s for pigments and for resins. The mechanism of excitation and relaxation leading to luminescence is discussed for the various materials. Oil colour specimens have been irradiated by a UV KrF laser ( λ =248 nm). Luminescence photographs have been detected by an intensified charge coupled device (ICCD) camera at different time delays.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3279a0be80ffa074fe1f633a811398bf https://doi.org/10.1016/s0169-4332(97)00616-8 Zobrazit plný text záznamu Full Text from ScienceDirect