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Optics Letters

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  • Vol. 25, Iss. 17 — Sep. 1, 2000
  • pp: 1303–1305

Detection of corrosion beneath a paint layer by use of spectral polarization optical imaging

J. H. Ali, W. B. Wang, P. P. Ho, and R. R. Alfano  »View Author Affiliations


Optics Letters, Vol. 25, Issue 17, pp. 1303-1305 (2000)
http://dx.doi.org/10.1364/OL.25.001303


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Abstract

The spectral and polarization properties of scattered light were used to image corrosion beneath the surface of a painted aluminum plate. The quality of imaging of the corrosion on the metal surface was significantly enhanced by the spectral polarization optical imaging technique. Depolarization scattered light was used to detect and image corrosion beneath the paint layer.

© 2000 Optical Society of America

OCIS Codes
(110.3080) Imaging systems : Infrared imaging
(120.4630) Instrumentation, measurement, and metrology : Optical inspection
(260.5430) Physical optics : Polarization
(290.1350) Scattering : Backscattering
(290.7050) Scattering : Turbid media

Citation
J. H. Ali, W. B. Wang, P. P. Ho, and R. R. Alfano, "Detection of corrosion beneath a paint layer by use of spectral polarization optical imaging," Opt. Lett. 25, 1303-1305 (2000)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-25-17-1303


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References

  1. D. Wang, C. Cao, L. Zhang, and H. Lin, Corrosion 46, 975 (1990).
  2. M. de Billy, F. Cohen-Tenoudji, A. Jungman, and G. J. Quentin, IEEE Trans. Sonics Ultrason. SU-5, 356 (1976).
  3. M. Stratmann and H. Streckel, Corros. Sci. 30, 681 (1990).
  4. L. Wang, P. P. Ho, C. Liu, G. Zhang, and R. R. Alfano, Science 253, 769 (1991).
  5. W. B. Wang, S. G. Demos, J. H. Ali, G. Zhang, and R. R. Alfano, Opt. Commun. 147, 11 (1998).
  6. C. Weiping and X. Chenghui, J. Mater. Sci. Lett. 16, 113 (1997).

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