Optical Coherence Tomography: non-destructive imaging and spectral information of pigments - art. no. 661806

Gaël Latour (1) , Julien Moreau (2) , Mady Elias (1) , Jean-Marc Frigerio (1)

1 INSP - Institut des Nanosciences de Paris
2 Virgo

Optical Coherence Tomography (OCT) is a non-invasive and non-destructive technique which is very interesting for the study of works of art. Based on a Michelson interferometer, our device has been adapted for the recording of information in the visible range. This system allows three-dimensional imaging of painting with a micrometer resolution. 3D imaging of pictorial layers is presented where the pigments embedded in the binder are clearly visible. Further-more, an adapted signal processing gives access to the spectral information issued from pigments. Tests on pigments in powder are presented and show that their spectral responses are different.

Mots clés: optical coherence tomography; spectroscopic optical coherent tomography; works of art; pigment; 3D imaging; spectral information

Domaines: Matière Condensée [cond-mat]

Gaël Latour, Julien Moreau, Mady Elias, Jean-Marc Frigerio. Optical Coherence Tomography: non-destructive imaging and spectral information of pigments - art. no. 661806. O3A - Optics for Arts, Architecture, and Archaeology Conference, Jun 2007, Munich, Unknown Region. pp.61806, ⟨10.1117/12.726084⟩. ⟨hal-01281554⟩