Abstract

We present a terahertz phase imaging method with multiwavelengths. This novel approach can image an object with a larger optical length compared with using the largest wavelength in the terahertz spectrum and does not involve the usual phase unwrapping in the detection of phase discontinuity. Furthermore, this technique can effectively reduce the noise background. We present two examples to demonstrate the validity of this new method. Both measurements show that multiwavelength phase imaging is a straightforward and efficient phase data processing method in terahertz imaging applications.

© 2006 Optical Society of America

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References

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    [CrossRef]
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    [CrossRef]
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    [CrossRef]
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    [CrossRef]
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    [CrossRef]
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    [CrossRef]

2003 (1)

2000 (2)

M. Herrmann, M. Tani, and K. Sakai, Jpn. J. Appl. Phys., Part 1 39, 6254 (2000).
[CrossRef]

L. Duvillaret, F. Garet, and J. L. Coutaz, J. Opt. Soc. Am. B 17, 452 (2000).
[CrossRef]

1998 (2)

M. Servin, J. L. Marroquin, D. Malacara, and F. J. Cuevas, Appl. Opt. 37, 1917 (1998).
[CrossRef]

A. Poppe, L. Xu, F. Krausz, and C. Spielmann, IEEE J. Sel. Top. Quantum Electron. 4, 179 (1998).
[CrossRef]

1995 (1)

Coutaz, J. L.

Cuevas, F. J.

Dakoff, A.

Duvillaret, L.

Garet, F.

Gass, J.

Herrmann, M.

M. Herrmann, M. Tani, and K. Sakai, Jpn. J. Appl. Phys., Part 1 39, 6254 (2000).
[CrossRef]

Hu, B. B.

Kim, M. K.

Krausz, F.

A. Poppe, L. Xu, F. Krausz, and C. Spielmann, IEEE J. Sel. Top. Quantum Electron. 4, 179 (1998).
[CrossRef]

Malacara, D.

Marroquin, J. L.

Nuss, M. C.

Poppe, A.

A. Poppe, L. Xu, F. Krausz, and C. Spielmann, IEEE J. Sel. Top. Quantum Electron. 4, 179 (1998).
[CrossRef]

Sakai, K.

M. Herrmann, M. Tani, and K. Sakai, Jpn. J. Appl. Phys., Part 1 39, 6254 (2000).
[CrossRef]

Servin, M.

Spielmann, C.

A. Poppe, L. Xu, F. Krausz, and C. Spielmann, IEEE J. Sel. Top. Quantum Electron. 4, 179 (1998).
[CrossRef]

Tani, M.

M. Herrmann, M. Tani, and K. Sakai, Jpn. J. Appl. Phys., Part 1 39, 6254 (2000).
[CrossRef]

Xu, L.

A. Poppe, L. Xu, F. Krausz, and C. Spielmann, IEEE J. Sel. Top. Quantum Electron. 4, 179 (1998).
[CrossRef]

Zhang, C.

Z. Zhang, Y. Zhang, G. Zhao, and C. Zhang, "Terrahertz time domain spectroscopy for explosive imaging," Optik (to be published).

Zhang, Y.

Z. Zhang, Y. Zhang, G. Zhao, and C. Zhang, "Terrahertz time domain spectroscopy for explosive imaging," Optik (to be published).

Zhang, Z.

Z. Zhang, Y. Zhang, G. Zhao, and C. Zhang, "Terrahertz time domain spectroscopy for explosive imaging," Optik (to be published).

Zhao, G.

Z. Zhang, Y. Zhang, G. Zhao, and C. Zhang, "Terrahertz time domain spectroscopy for explosive imaging," Optik (to be published).

Appl. Opt. (1)

IEEE J. Sel. Top. Quantum Electron. (1)

A. Poppe, L. Xu, F. Krausz, and C. Spielmann, IEEE J. Sel. Top. Quantum Electron. 4, 179 (1998).
[CrossRef]

J. Opt. Soc. Am. B (1)

Jpn. J. Appl. Phys., Part 1 (1)

M. Herrmann, M. Tani, and K. Sakai, Jpn. J. Appl. Phys., Part 1 39, 6254 (2000).
[CrossRef]

Opt. Lett. (2)

Other (1)

Z. Zhang, Y. Zhang, G. Zhao, and C. Zhang, "Terrahertz time domain spectroscopy for explosive imaging," Optik (to be published).

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Figures (4)

Fig. 1
Fig. 1

Apparatus for terahertz raster-scan experiments. CBS, cubic beam splitter; HWP, half-wave plate; QWP, quarter-wave plate.

Fig. 2
Fig. 2

Terahertz two-wavelength phase imaging.

Fig. 3
Fig. 3

Terahertz two-wavelength phase imaging.

Fig. 4
Fig. 4

Noise comparison of single-wavelength imaging and multiwavelength imaging.

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