Abstract

We demonstrated fast terahertz spectral computed tomography by using real-time line projection of a terahertz beam. Two types of cross-sectional images of continuously rotating samples have been measured in only a few seconds. From temporal data, a peak-to-peak sinogram and cross sections have been reconstructed using a filtered backprojection algorithm. Using fast Fourier transform from temporal data, spectral cross sections of the sample have been obtained.

© 2011 Optical Society of America

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2011

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E. Abraham, A. Younus, C. Aguerre, P. Desbarats, and P. Mounaix, Opt. Commun. 283, 2050 (2010).
[CrossRef]

A. Brahm, M. Kunz, S. Riehemann, G. Notni, and A. Tünnermann, Appl. Phys. B 100, 151 (2010).
[CrossRef]

M. Schirmer, M. Fujio, M. Minami, J. Miura, T. Araki, and T. Yasui, Biomed. Opt. Express 1, 354 (2010).
[CrossRef]

2009

2008

2006

2005

T. Yasui, E. Saneyoshi, and T. Araki, Appl. Phys. Lett. 87, 061101 (2005).
[CrossRef]

2004

F. Miyamaru, T. Yonera, M. Tani, and M. Hangyo, Jpn. J. Appl. Phys. 43, L489 (2004).
[CrossRef]

2002

2000

Abbot, D.

Abraham, E.

Aguerre, C.

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[CrossRef]

Alexander, P.

Alton, J.

Araki, T.

Barbieri, S.

Bartels, L.

Beere, H. E.

Bonn, M.

Brahm, A.

A. Brahm, M. Kunz, S. Riehemann, G. Notni, and A. Tünnermann, Appl. Phys. B 100, 151 (2010).
[CrossRef]

Caumes, J.-P.

Chassagne, B.

Desbarats, P.

Ferguson, B.

Fujio, M.

Gladden, L. F.

Gray, D.

Hangyo, M.

F. Miyamaru, T. Yonera, M. Tani, and M. Hangyo, Jpn. J. Appl. Phys. 43, L489 (2004).
[CrossRef]

Hashimoto, M.

Heinz, T. F.

Herman, G. T.

G. T. Herman, Image Reconstruction from Projections—The Fundamentals of Computerized Tomography(Academic, 1980).

Ihara, A.

Imamura, M.

E. Kato, S. Nishina, A. Irisawa, T. Yamashita, M. Imamura, and K. Kawase, in Proceedings of IEEE Conference on 35th International Conference on Infrared, Millimeter and Terahertz Waves (IEEE, 2010), paper Mo-P.67.
[PubMed]

Irisawa, A.

E. Kato, S. Nishina, A. Irisawa, T. Yamashita, M. Imamura, and K. Kawase, in Proceedings of IEEE Conference on 35th International Conference on Infrared, Millimeter and Terahertz Waves (IEEE, 2010), paper Mo-P.67.
[PubMed]

Jewariya, J.

Johns, M. L.

Kato, E.

E. Kato, S. Nishina, A. Irisawa, T. Yamashita, M. Imamura, and K. Kawase, in Proceedings of IEEE Conference on 35th International Conference on Infrared, Millimeter and Terahertz Waves (IEEE, 2010), paper Mo-P.67.
[PubMed]

Kawai, M.

Kawase, K.

E. Kato, S. Nishina, A. Irisawa, T. Yamashita, M. Imamura, and K. Kawase, in Proceedings of IEEE Conference on 35th International Conference on Infrared, Millimeter and Terahertz Waves (IEEE, 2010), paper Mo-P.67.
[PubMed]

Knoesel, E.

Kunz, M.

A. Brahm, M. Kunz, S. Riehemann, G. Notni, and A. Tünnermann, Appl. Phys. B 100, 151 (2010).
[CrossRef]

Linfield, E. H.

Maikusa, N.

Minami, M.

Miura, J.

Miyamaru, F.

F. Miyamaru, T. Yonera, M. Tani, and M. Hangyo, Jpn. J. Appl. Phys. 43, L489 (2004).
[CrossRef]

Mounaix, P.

Nagai, M.

Nahata, A.

Nguyen, K. L.

Nishina, S.

E. Kato, S. Nishina, A. Irisawa, T. Yamashita, M. Imamura, and K. Kawase, in Proceedings of IEEE Conference on 35th International Conference on Infrared, Millimeter and Terahertz Waves (IEEE, 2010), paper Mo-P.67.
[PubMed]

Notni, G.

A. Brahm, M. Kunz, S. Riehemann, G. Notni, and A. Tünnermann, Appl. Phys. B 100, 151 (2010).
[CrossRef]

Otani, C.

Pepper, M.

Recur, B.

Reider, G. A.

Riehemann, S.

A. Brahm, M. Kunz, S. Riehemann, G. Notni, and A. Tünnermann, Appl. Phys. B 100, 151 (2010).
[CrossRef]

Ritchie, D. A.

Salort, S.

Saneyoshi, E.

T. Yasui, E. Saneyoshi, and T. Araki, Appl. Phys. Lett. 87, 061101 (2005).
[CrossRef]

Sasaki, Y.

Sawanaka, K.

Schirmer, M.

Shan, J.

Sunaguchi, N.

Tanaka, K.

Tani, M.

F. Miyamaru, T. Yonera, M. Tani, and M. Hangyo, Jpn. J. Appl. Phys. 43, L489 (2004).
[CrossRef]

Tünnermann, A.

A. Brahm, M. Kunz, S. Riehemann, G. Notni, and A. Tünnermann, Appl. Phys. B 100, 151 (2010).
[CrossRef]

Wang, S.

Weling, A. S.

Worral, C. H.

Yamashita, T.

E. Kato, S. Nishina, A. Irisawa, T. Yamashita, M. Imamura, and K. Kawase, in Proceedings of IEEE Conference on 35th International Conference on Infrared, Millimeter and Terahertz Waves (IEEE, 2010), paper Mo-P.67.
[PubMed]

Yasuda, T.

T. Yasuda, T. Yasui, T. Araki, and E. Abraham, Opt. Commun. 267, 128 (2006).
[CrossRef]

Yasui, T.

Yonera, T.

F. Miyamaru, T. Yonera, M. Tani, and M. Hangyo, Jpn. J. Appl. Phys. 43, L489 (2004).
[CrossRef]

Younus, A.

Yuasa, T.

Zhang, X.-C.

Appl. Phys. B

A. Brahm, M. Kunz, S. Riehemann, G. Notni, and A. Tünnermann, Appl. Phys. B 100, 151 (2010).
[CrossRef]

Appl. Phys. Lett.

T. Yasui, E. Saneyoshi, and T. Araki, Appl. Phys. Lett. 87, 061101 (2005).
[CrossRef]

Biomed. Opt. Express

J. Opt. Soc. Am. B

Jpn. J. Appl. Phys.

F. Miyamaru, T. Yonera, M. Tani, and M. Hangyo, Jpn. J. Appl. Phys. 43, L489 (2004).
[CrossRef]

Opt. Commun.

T. Yasuda, T. Yasui, T. Araki, and E. Abraham, Opt. Commun. 267, 128 (2006).
[CrossRef]

E. Abraham, A. Younus, C. Aguerre, P. Desbarats, and P. Mounaix, Opt. Commun. 283, 2050 (2010).
[CrossRef]

Opt. Express

Opt. Lett.

Other

G. T. Herman, Image Reconstruction from Projections—The Fundamentals of Computerized Tomography(Academic, 1980).

E. Kato, S. Nishina, A. Irisawa, T. Yamashita, M. Imamura, and K. Kawase, in Proceedings of IEEE Conference on 35th International Conference on Infrared, Millimeter and Terahertz Waves (IEEE, 2010), paper Mo-P.67.
[PubMed]

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Figures (3)

Fig. 1
Fig. 1

Experimental setup. THz-CL1 and THz-CL2, THz cylindrical lenses; THz-L, THz plano–convex lens; P, polarizer; A, analyzer; L, plano–convex lens.

Fig. 2
Fig. 2

Four metallic bars ( 2 mm diameter). (a) Peak-to-peak sinogram. (b) Peak-to-peak cross section. (c) Amplitude sinogram at 0.6 THz . (d) Amplitude cross section at 0.6 THz .

Fig. 3
Fig. 3

Foam cylinder ( 16 mm diameter) with one off-axis cylindrical hole ( 4 mm diameter) filled with lactose and polyethylene powder. (a) Amplitude sinogram at 0.53 THz . (b) Spectral cross section at 0.53 THz and intensity profile along the vertical white line.

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