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Study of varnish layers with optical coherence tomography in both visible and infrared domains

  • Gaël Latour
  • , Gaëlle Georges
  • , Laure Siozade
  • , Carole Deumié
  • , Jean Philippe Echard
  • Institut Fresnel
  • Cité de la Musique

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Optical Coherence Tomography (OCT) is an attractive technique to study works of art because it allows non-destructive and contactless analysis. In the case of musical instruments, the study of wood finishes could give interesting information as the thicknesses of the layers, the number of layers and the presence of fillers. A time-domain full-field OCT, achieving high resolution, is used in both visible and near infrared ranges to characterize semi-transparent layers containing scattering particles as charged varnish layers. We present OCT measurements on wood varnished with different coatings. We show that the detection of pigment particles is dependent of the spectral range and that both spectral domains allow to reach micrometer-scale spatial resolutions.

Original languageEnglish
Title of host publicationO3A
Subtitle of host publicationOptics for Arts, Architecture, and Archaeology II
PublisherSPIE
ISBN (Print)9780819476746
DOIs
Publication statusPublished - 1 Jan 2009
Externally publishedYes
EventO3A: Optics for Arts, Architecture, and Archaeology II - Munich, Germany
Duration: 17 Jun 200918 Jun 2009

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7391
ISSN (Print)0277-786X

Conference

ConferenceO3A: Optics for Arts, Architecture, and Archaeology II
Country/TerritoryGermany
CityMunich
Period17/06/0918/06/09

Keywords

  • 3D imaging
  • Infrared range
  • Optical coherence tomography
  • Pigments
  • TD-OCT
  • Varnish
  • Visible range

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