Espectroscopías y microscopías láser para la investigación del patrimonio cultural
- Mohamed Oujja
- Mikel Sanz
- Marta Castillejo
- Vincent Detalle
- Alice Dal Fovo
- Raffaella Fontana
Editorial: Ministerio de Cultura
ISBN: 978-84-8181-760-7
Ano de publicación: 2020
Título do volume: La Ciencia y el Arte VII Ciencias experimentales y conservación del patrimonio
Volume: 7
Páxinas: 231-250
Tipo: Capítulo de libro
Resumo
Laser spectroscopies, including Raman, laser induced fluorescence (LIF) and laser induced breakdown spectroscopy (LIBS) have been used for decades for the analysis of materials and substrates of artistic interest. Raman and LIBS provide complementary information on molecular and elemental composition, respectively, while LIF gives additional data related to the presence offluorescence emitting substances. Most recently introduced in the study of cultural heritage is the technique of nonlinear optical microscopy (NLOM), which in its modalities of multi-photon excitation fluorescence (MPEF) and generation of second or third harmonic (SHG, THG) serve for threedimensional characterization with micrometric precision, without sampling, of the chemical nature, structure and thickness of mutilayer and multicomponent substrates. In this work, recent advances in the integration of the three mentioned laser spectroscopies and different modalities of NLOM in various types of hybrid systems are illustrated, showing their use for morphological and chemical characterization of pictorial and stone based substrates.