30 May 2013 Long wavelength optical coherence tomography for painted objects
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Optical Coherence Tomography has been successfully applied to the imaging of painted objects in recent years. However, a significant limitation is the low penetration depth of OCT in paint because of the high opacity of paint due to either scattering or absorption. It has been shown that the optimum spectral window for OCT imaging of paint layers is around 2.2μm in wavelength. In this paper, we demonstrate a 1950nm OCT for imaging painted objects using a superfluorescent fiber source at low power.
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C. S. Cheung, C. S. Cheung, M. Tokurakawa, M. Tokurakawa, J. M. O. Daniel, J. M. O. Daniel, W. A. Clarkson, W. A. Clarkson, H. Liang, H. Liang, "Long wavelength optical coherence tomography for painted objects", Proc. SPIE 8790, Optics for Arts, Architecture, and Archaeology IV, 87900J (30 May 2013); doi: 10.1117/12.2021700; https://doi.org/10.1117/12.2021700

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