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Beating the wavelength limit: three-dimensional imaging of buried subwavelength fractures in sculpture and construction materials by terahertz time-domain reflection spectroscopy |
Applied Optics, Vol. 52, Issue 3, pp. 375-380 (2013)
http://dx.doi.org/10.1364/AO.52.000375
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Abstract
We use reflection terahertz spectroscopy to locate and produce three-dimensional images of air gaps between stones that resemble fractures, even of subwavelength thicknesses. This technique is found to be promising tool for sculpture and building damage evaluation as well as structural quality control in other dielectric materials.
© 2013 Optical Society of America
OCIS Codes
(100.6890) Image processing : Three-dimensional image processing
(100.6950) Image processing : Tomographic image processing
(110.6960) Imaging systems : Tomography
(300.6495) Spectroscopy : Spectroscopy, teraherz
(110.6795) Imaging systems : Terahertz imaging
(110.3010) Imaging systems : Image reconstruction techniques
ToC Category:
Spectroscopy
History
Original Manuscript: November 1, 2012
Revised Manuscript: December 5, 2012
Manuscript Accepted: December 7, 2012
Published: January 11, 2013
Virtual Issues
Vol. 8, Iss. 2 Virtual Journal for Biomedical Optics
Citation
M. Schwerdtfeger, E. Castro-Camus, K. Krügener, W. Viöl, and M. Koch, "Beating the wavelength limit: three-dimensional imaging of buried subwavelength fractures in sculpture and construction materials by terahertz time-domain reflection spectroscopy," Appl. Opt. 52, 375-380 (2013)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-52-3-375
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