Abstract

In this study, we propose a THz computed tomography (CT) method based on phase contrast, which retrieves the phase shift information at each data point through a phase modulation technique using a Mach-Zehnder interferometer with a continuous wave (CW) source. The THz CT is based on first-generation CT, which acquires a set of projections by translational and rotational scans using a thin beam. From the phase-shift projections, we reconstruct a spatial distribution of refractive indices in a cross section of interest. We constructed a preliminary system using a highly coherent CW THz source with a frequency of 0.54 THz to prove the concept and performed an imaging experiment using phantoms to investigate its imaging features such as artifact-immune imaging, quantitative measurement, and selective detection.

© 2013 Optical Society of America

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2011

2010

E. Abraham, A. Younus, C. Aguerre, P. Desbarats, and P. Mounaix, “Refraction losses in terahertz computed tomography,” Opt. Commun.283(10), 2050–2055 (2010).
[CrossRef]

2009

2008

2007

2004

2003

R. M. Woodward, V. P. Wallace, D. D. Arnone, E. H. Linfield, and M. Pepper, “Terahertz pulsed imaging of skin cancer in the time and frequency domain,” J. Biol. Phys.29(2/3), 257–259 (2003).
[CrossRef] [PubMed]

2002

2001

1997

1995

Abbot, D.

Abraham, E.

Aguerre, C.

E. Abraham, A. Younus, C. Aguerre, P. Desbarats, and P. Mounaix, “Refraction losses in terahertz computed tomography,” Opt. Commun.283(10), 2050–2055 (2010).
[CrossRef]

Aoshima, S.

Aoshima, S.-i.

Araki, T.

Arnone, D. D.

R. M. Woodward, V. P. Wallace, D. D. Arnone, E. H. Linfield, and M. Pepper, “Terahertz pulsed imaging of skin cancer in the time and frequency domain,” J. Biol. Phys.29(2/3), 257–259 (2003).
[CrossRef] [PubMed]

Bishop, W.

D. Porterfield, J. Hesler, T. Crowe, W. Bishop, and D. Woolard, “Integrated terahertz transmit / receive modules,” Proc. of 33rd European Microwave Conference, 1319–1322 (2003).

Boivin, L.

Breitfeld, F.

Caumes, J.-P.

Chassagne, B.

Crowe, T.

D. Porterfield, J. Hesler, T. Crowe, W. Bishop, and D. Woolard, “Integrated terahertz transmit / receive modules,” Proc. of 33rd European Microwave Conference, 1319–1322 (2003).

Cusack, R.

De Lucia, F. C.

Desbarats, P.

Dobroiu, A.

Feng, S.

Ferguson, B.

S. Wang, B. Ferguson, and X.-C. Zhang, “Pulsed terahertz tomography,” J. Phys. D Appl. Phys.37(4), R1–R36 (2004).
[CrossRef]

B. Ferguson, S. Wang, D. Gray, D. Abbot, and X. C. Zhang, “T-ray computed tomography,” Opt. Lett.27(15), 1312–1314 (2002).
[CrossRef] [PubMed]

Franck, C. C.

Goldrein, H. T.

Gray, D.

Griffin, S. T.

Halford, C. E.

Hesler, J.

D. Porterfield, J. Hesler, T. Crowe, W. Bishop, and D. Woolard, “Integrated terahertz transmit / receive modules,” Proc. of 33rd European Microwave Conference, 1319–1322 (2003).

Hu, B. B.

Hunsche, S.

Huntley, J. M.

Iwata, T.

Jacobs, E. L.

Kawada, Y.

Kawai, M.

Kawase, K.

Kawayama, I.

Kiwa, T.

Koch, M.

Kondo, J.

Linfield, E. H.

R. M. Woodward, V. P. Wallace, D. D. Arnone, E. H. Linfield, and M. Pepper, “Terahertz pulsed imaging of skin cancer in the time and frequency domain,” J. Biol. Phys.29(2/3), 257–259 (2003).
[CrossRef] [PubMed]

Maikusa, N.

Mikulics, M.

Mittleman, D. M.

Morita, Y.

Mors, M.

Mounaix, P.

Moyer, S. K.

Murrill, S. R.

Nuss, M. C.

Ohshima, Y. N.

Oka, S.

Otani, C.

Pepper, M.

R. M. Woodward, V. P. Wallace, D. D. Arnone, E. H. Linfield, and M. Pepper, “Terahertz pulsed imaging of skin cancer in the time and frequency domain,” J. Biol. Phys.29(2/3), 257–259 (2003).
[CrossRef] [PubMed]

Petkie, D. T.

Planken, P. C. M.

Porterfield, D.

D. Porterfield, J. Hesler, T. Crowe, W. Bishop, and D. Woolard, “Integrated terahertz transmit / receive modules,” Proc. of 33rd European Microwave Conference, 1319–1322 (2003).

Recur, B.

Salort, S.

Sasaki, Y.

Sunaguchi, N.

Takahashi, H.

Tonouchi, M.

Tsukada, K.

Wallace, V. P.

R. M. Woodward, V. P. Wallace, D. D. Arnone, E. H. Linfield, and M. Pepper, “Terahertz pulsed imaging of skin cancer in the time and frequency domain,” J. Biol. Phys.29(2/3), 257–259 (2003).
[CrossRef] [PubMed]

Wang, S.

S. Wang, B. Ferguson, and X.-C. Zhang, “Pulsed terahertz tomography,” J. Phys. D Appl. Phys.37(4), R1–R36 (2004).
[CrossRef]

B. Ferguson, S. Wang, D. Gray, D. Abbot, and X. C. Zhang, “T-ray computed tomography,” Opt. Lett.27(15), 1312–1314 (2002).
[CrossRef] [PubMed]

Wenckebach, T.

Wilk, R.

Winful, H. G.

Woodward, R. M.

R. M. Woodward, V. P. Wallace, D. D. Arnone, E. H. Linfield, and M. Pepper, “Terahertz pulsed imaging of skin cancer in the time and frequency domain,” J. Biol. Phys.29(2/3), 257–259 (2003).
[CrossRef] [PubMed]

Woolard, D.

D. Porterfield, J. Hesler, T. Crowe, W. Bishop, and D. Woolard, “Integrated terahertz transmit / receive modules,” Proc. of 33rd European Microwave Conference, 1319–1322 (2003).

Yamada, H.

Yamashita, M.

Yasuda, T.

Yasui, T.

Younus, A.

Yuasa, T.

Zhang, X. C.

Zhang, X.-C.

S. Wang, B. Ferguson, and X.-C. Zhang, “Pulsed terahertz tomography,” J. Phys. D Appl. Phys.37(4), R1–R36 (2004).
[CrossRef]

Zhao, G.

Appl. Opt.

J. Biol. Phys.

R. M. Woodward, V. P. Wallace, D. D. Arnone, E. H. Linfield, and M. Pepper, “Terahertz pulsed imaging of skin cancer in the time and frequency domain,” J. Biol. Phys.29(2/3), 257–259 (2003).
[CrossRef] [PubMed]

J. Opt. Soc. Am. B

J. Phys. D Appl. Phys.

S. Wang, B. Ferguson, and X.-C. Zhang, “Pulsed terahertz tomography,” J. Phys. D Appl. Phys.37(4), R1–R36 (2004).
[CrossRef]

Opt. Commun.

E. Abraham, A. Younus, C. Aguerre, P. Desbarats, and P. Mounaix, “Refraction losses in terahertz computed tomography,” Opt. Commun.283(10), 2050–2055 (2010).
[CrossRef]

Opt. Express

Opt. Lett.

Other

D. Porterfield, J. Hesler, T. Crowe, W. Bishop, and D. Woolard, “Integrated terahertz transmit / receive modules,” Proc. of 33rd European Microwave Conference, 1319–1322 (2003).

C. Kak and M. Slanery, “Principles of Computerized Tomographic Imaging,” New York: IEEE Press (1987).

J. Hsieh, Computed Tomography Principles, Design, Artifacts, and Recent Advances, Second Edition (John Wiley & Sons, Inc. & SPIE, 2009).

A. Rosenfeld and C. Kak, Digital Picture Processing, 2nd Ed., Vol. I (Academic Press, 1982).

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