Table of Contents
Laser Chemistry
Volume 2006, Article ID 35373, 11 pages
Review Article

Optical Coherence Tomography for Artwork Diagnostics

Institute of Physics, Nicolaus Copernicus University, ul. Grudziądzka 5, Toruń 87 100, Poland

Received 15 September 2006; Revised 8 December 2006; Accepted 15 December 2006

Academic Editor: Costas Fotakis

Copyright © 2006 Piotr Targowski et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Supplementary Material

This movie shows consecutive, parallel cross-sectional images of the oil paintings on canvas (shown in Figure 3) obtained with the OCT instrument described in the article. These images are collected together into a flow-through film and correlated with the yellow vertical line in the microphotograph to the left. The line indicates the exact position where each tomogram was taken. The position of the microphotograph is marked as a dashed rectangle in Figure 3(c). In the tomograms, light approaches from the left. The leftmost strong line is thus an air-varnish boundary. The varnish layer is visible as a dark, nonscattering strip just to the right from this boundary which is followed by the semitransparent glaze layers and the absorbing paint layer. The tomograms are shown in false colors: white and red colors indicate high scattering of penetrating light, while green and blue indicate medium and low scattering, respectively. The film covers an area of 7×7 mm and consists of 200 frames. Each frame contains the OCT tomogram (a B-scan) composed of 800 horizontal lines (A-scans). The in-depth resolution is 10 micrometers.

  1. Oil paintings in canvas