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

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References

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

1998

W. B. Wang, S. G. Demos, J. H. Ali, G. Zhang, and R. R. Alfano, Opt. Commun. 147, 11 (1998).
[CrossRef]

1997

C. Weiping and X. Chenghui, J. Mater. Sci. Lett. 16, 113 (1997).
[CrossRef]

1991

L. Wang, P. P. Ho, C. Liu, G. Zhang, and R. R. Alfano, Science 253, 769 (1991).
[CrossRef] [PubMed]

1990

M. Stratmann and H. Streckel, Corros. Sci. 30, 681 (1990).
[CrossRef]

D. Wang, C. Cao, L. Zhang, and H. Lin, Corrosion 46, 975 (1990).
[CrossRef]

1976

M. de Billy, F. Cohen-Tenoudji, A. Jungman, and G. J. Quentin, IEEE Trans. Sonics Ultrason. SU-5, 356 (1976).
[CrossRef]

Alfano, R. R.

W. B. Wang, S. G. Demos, J. H. Ali, G. Zhang, and R. R. Alfano, Opt. Commun. 147, 11 (1998).
[CrossRef]

L. Wang, P. P. Ho, C. Liu, G. Zhang, and R. R. Alfano, Science 253, 769 (1991).
[CrossRef] [PubMed]

Ali, J. H.

W. B. Wang, S. G. Demos, J. H. Ali, G. Zhang, and R. R. Alfano, Opt. Commun. 147, 11 (1998).
[CrossRef]

Cao, C.

D. Wang, C. Cao, L. Zhang, and H. Lin, Corrosion 46, 975 (1990).
[CrossRef]

Chenghui, X.

C. Weiping and X. Chenghui, J. Mater. Sci. Lett. 16, 113 (1997).
[CrossRef]

Cohen-Tenoudji, F.

M. de Billy, F. Cohen-Tenoudji, A. Jungman, and G. J. Quentin, IEEE Trans. Sonics Ultrason. SU-5, 356 (1976).
[CrossRef]

de Billy, M.

M. de Billy, F. Cohen-Tenoudji, A. Jungman, and G. J. Quentin, IEEE Trans. Sonics Ultrason. SU-5, 356 (1976).
[CrossRef]

Demos, S. G.

W. B. Wang, S. G. Demos, J. H. Ali, G. Zhang, and R. R. Alfano, Opt. Commun. 147, 11 (1998).
[CrossRef]

Ho, P. P.

L. Wang, P. P. Ho, C. Liu, G. Zhang, and R. R. Alfano, Science 253, 769 (1991).
[CrossRef] [PubMed]

Jungman, A.

M. de Billy, F. Cohen-Tenoudji, A. Jungman, and G. J. Quentin, IEEE Trans. Sonics Ultrason. SU-5, 356 (1976).
[CrossRef]

Lin, H.

D. Wang, C. Cao, L. Zhang, and H. Lin, Corrosion 46, 975 (1990).
[CrossRef]

Liu, C.

L. Wang, P. P. Ho, C. Liu, G. Zhang, and R. R. Alfano, Science 253, 769 (1991).
[CrossRef] [PubMed]

Quentin, G. J.

M. de Billy, F. Cohen-Tenoudji, A. Jungman, and G. J. Quentin, IEEE Trans. Sonics Ultrason. SU-5, 356 (1976).
[CrossRef]

Stratmann, M.

M. Stratmann and H. Streckel, Corros. Sci. 30, 681 (1990).
[CrossRef]

Streckel, H.

M. Stratmann and H. Streckel, Corros. Sci. 30, 681 (1990).
[CrossRef]

Wang, D.

D. Wang, C. Cao, L. Zhang, and H. Lin, Corrosion 46, 975 (1990).
[CrossRef]

Wang, L.

L. Wang, P. P. Ho, C. Liu, G. Zhang, and R. R. Alfano, Science 253, 769 (1991).
[CrossRef] [PubMed]

Wang, W. B.

W. B. Wang, S. G. Demos, J. H. Ali, G. Zhang, and R. R. Alfano, Opt. Commun. 147, 11 (1998).
[CrossRef]

Weiping, C.

C. Weiping and X. Chenghui, J. Mater. Sci. Lett. 16, 113 (1997).
[CrossRef]

Zhang, G.

W. B. Wang, S. G. Demos, J. H. Ali, G. Zhang, and R. R. Alfano, Opt. Commun. 147, 11 (1998).
[CrossRef]

L. Wang, P. P. Ho, C. Liu, G. Zhang, and R. R. Alfano, Science 253, 769 (1991).
[CrossRef] [PubMed]

Zhang, L.

D. Wang, C. Cao, L. Zhang, and H. Lin, Corrosion 46, 975 (1990).
[CrossRef]

Corros. Sci.

M. Stratmann and H. Streckel, Corros. Sci. 30, 681 (1990).
[CrossRef]

Corrosion

D. Wang, C. Cao, L. Zhang, and H. Lin, Corrosion 46, 975 (1990).
[CrossRef]

IEEE Trans. Sonics Ultrason.

M. de Billy, F. Cohen-Tenoudji, A. Jungman, and G. J. Quentin, IEEE Trans. Sonics Ultrason. SU-5, 356 (1976).
[CrossRef]

J. Mater. Sci. Lett.

C. Weiping and X. Chenghui, J. Mater. Sci. Lett. 16, 113 (1997).
[CrossRef]

Opt. Commun.

W. B. Wang, S. G. Demos, J. H. Ali, G. Zhang, and R. R. Alfano, Opt. Commun. 147, 11 (1998).
[CrossRef]

Science

L. Wang, P. P. Ho, C. Liu, G. Zhang, and R. R. Alfano, Science 253, 769 (1991).
[CrossRef] [PubMed]

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Figures (5)

Fig. 1
Fig. 1

Incident- and scattered-light rays from the paint–corroded-metal medium.

Fig. 2
Fig. 2

Transmission curve of red paint in the wavelength range from 200 to 2500 nm.

Fig. 3
Fig. 3

Experimental setup: PC, personal computer.

Fig. 4
Fig. 4

Images of corrosion on the top of an aluminum plate, obtained by use of spectral and polarization properties. The bottom half of the circular corrosion and the aluminum plate are painted red. (a)–(c) parallel polarization images, (d)–(f) perpendicular polarization images.

Fig. 5
Fig. 5

Digitized intensity profiles for 700 nm along the vertical axis at the center of (a) the parallel polarization image [Fig. 4(b)] and (b) the perpendicular polarization image [Fig. 4(e)].

Tables (1)

Tables Icon

Table 1 Degree of Polarization of the Images

Equations (2)

Equations on this page are rendered with MathJax. Learn more.

D=I-I/I+I,
C=Imax-Imin/Imax+Imin,

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