Abstract

Low-coherence interferometric systems provide three-dimensional imaging through scattering media by measurement of the object’s temporal response. An optical correlator is presented that allows direct recording of the signal issued from the object under reflection. The filtering technique enhances the image visibility and allows one to obtain an image with a good signal-to-noise ratio. The performance of two particular imaging systems, point-to-point and vertical-slice imaging, is discussed with an object comprising two cover plates that are attached.

© 2004 Optical Society of America

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References

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  1. G. Le Tolguenec, F. Devaux, and E. Lantz, Opt. Lett. 24, 1047 (1999).
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    [CrossRef] [PubMed]
  4. B. E. Bouma and G. J. Tearney, Handbook of Optical Coherence Tomography (Marcel Dekker, New York, 2002).
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    [CrossRef]

2001 (1)

1999 (1)

1998 (1)

1997 (1)

I. Zeylikovitch and R. R. Alfano, Opt. Commun. 135, 217 (1997).
[CrossRef]

Alfano, R. R.

I. Zeylikovitch and R. R. Alfano, Opt. Commun. 135, 217 (1997).
[CrossRef]

Ben Houcine, K.

Bouma, B. E.

B. E. Bouma and G. J. Tearney, Handbook of Optical Coherence Tomography (Marcel Dekker, New York, 2002).

Brun, G.

Devaux, F.

French, P. M. W.

Froehly, L.

Jones, R.

Kwolek, K.

Lantz, E.

Le Tolguenec, G.

Melloch, M. R.

Nolte, D. D.

Tearney, G. J.

B. E. Bouma and G. J. Tearney, Handbook of Optical Coherence Tomography (Marcel Dekker, New York, 2002).

Tziraki, M.

Veillas, C.

Verrier, I.

Zeylikovitch, I.

I. Zeylikovitch and R. R. Alfano, Opt. Commun. 135, 217 (1997).
[CrossRef]

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Figures (4)

Fig. 1
Fig. 1

SISAM with the sample under reflection.

Fig. 2
Fig. 2

Scheme of the object: cover plates separated by a thin air gap. 1–4, interfaces.

Fig. 3
Fig. 3

Correlation signals on a CCD and treated signals for transverse scanning.

Fig. 4
Fig. 4

Correlation signals on a CCD and treated signals for direct slice imaging.

Equations (4)

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

Ix=Itx+Irx+2REttErt,
EttErt=exp-2πiQ˜REttEr*t-x/Qdt;
Ix=EttErt.
Iνx=Iνtx+Iνrx+2IνtxIνrx1/2 cosφx,ν,

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