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High resolution Fourier domain Optical Coherence Tomography at 2 microns for painted objects

High resolution Fourier domain Optical Coherence Tomography at 2 microns for painted objects
High resolution Fourier domain Optical Coherence Tomography at 2 microns for painted objects
Optical Coherence Tomography has been successfully applied to the non-invasive imaging of subsurface microstructure of a variety of materials from biological tissues to painted objects of art. One of the limitations of the technique is the low depth of penetration due to the strong scattering and absorption in the material. Previous studies found that for paint materials, the optimum window for large depth of penetration is around 2.2 microns. This is also true for many other materials with low water content. We have previously demonstrated OCT systems in this wavelength regime for imaging with improved depth of penetration. In this paper, we present an improved 2 micron high resolution Fourier domain OCT system using a broadband supercontinuum source. The system achieved a depth resolution of 9 microns in air (or 6 microns in paint or any polymer).
Liang, H.
a67d00dd-b439-4806-9ac0-ac7644732b4b
Cheung, C.S.
a5fdf279-74df-4264-81ff-a83245918b42
Daniel, J.M.O.
b6ad5413-bcb3-4699-9f19-2fb88d96fb7a
Tokurakawa, M.
ac4d20e6-32cd-495d-84e4-e86e8fccc99b
Clarkson, W.A.
3b060f63-a303-4fa5-ad50-95f166df1ba2
Spring, M.
736f6e80-9db8-43af-89c0-546edd1e3a4b
Liang, H.
a67d00dd-b439-4806-9ac0-ac7644732b4b
Cheung, C.S.
a5fdf279-74df-4264-81ff-a83245918b42
Daniel, J.M.O.
b6ad5413-bcb3-4699-9f19-2fb88d96fb7a
Tokurakawa, M.
ac4d20e6-32cd-495d-84e4-e86e8fccc99b
Clarkson, W.A.
3b060f63-a303-4fa5-ad50-95f166df1ba2
Spring, M.
736f6e80-9db8-43af-89c0-546edd1e3a4b

Liang, H., Cheung, C.S., Daniel, J.M.O., Tokurakawa, M., Clarkson, W.A. and Spring, M. (2015) High resolution Fourier domain Optical Coherence Tomography at 2 microns for painted objects. Conference on Optics for Arts, Architecture, and Archaeology V: SPIE 9527, , Munich, Germany. 24 - 25 Jun 2015. 6 pp . (doi:10.1117/12.2185071).

Record type: Conference or Workshop Item (Paper)

Abstract

Optical Coherence Tomography has been successfully applied to the non-invasive imaging of subsurface microstructure of a variety of materials from biological tissues to painted objects of art. One of the limitations of the technique is the low depth of penetration due to the strong scattering and absorption in the material. Previous studies found that for paint materials, the optimum window for large depth of penetration is around 2.2 microns. This is also true for many other materials with low water content. We have previously demonstrated OCT systems in this wavelength regime for imaging with improved depth of penetration. In this paper, we present an improved 2 micron high resolution Fourier domain OCT system using a broadband supercontinuum source. The system achieved a depth resolution of 9 microns in air (or 6 microns in paint or any polymer).

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More information

Published date: 7 July 2015
Venue - Dates: Conference on Optics for Arts, Architecture, and Archaeology V: SPIE 9527, , Munich, Germany, 2015-06-24 - 2015-06-25

Identifiers

Local EPrints ID: 442393
URI: http://eprints.soton.ac.uk/id/eprint/442393
PURE UUID: b8820c1a-25a6-4d33-af45-504f873420f4

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Date deposited: 14 Jul 2020 16:32
Last modified: 27 Apr 2022 06:50

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Contributors

Author: H. Liang
Author: C.S. Cheung
Author: J.M.O. Daniel
Author: M. Tokurakawa
Author: W.A. Clarkson
Author: M. Spring

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