Abstract

High-speed frequency-domain terahertz (THz) coherence tomography is demonstrated using frequency sweeping of continuous-wave THz radiation and beam steering. For axial scanning, THz frequency sweeping with a kHz sweep rate and a THz sweep range is executed using THz photomixing with an optical beat source consisting of a wavelength-swept laser and a distributed feedback laser diode. During the frequency sweep, frequency-domain THz interferograms are measured using coherent homodyne detection employing signal averaging for noise reduction and used as axial-scan data via fast Fourier transform. Axial-scan data are acquired while scanning a transverse range of 100 × 100 mm2 by use of a THz beam scanner with moving neither sample nor THz transmitter/receiver unit. It takes 100 s to acquire axial-scan data for 100 × 100 points with 5 averaged traces at a sweep rate of 1 kHz. THz tomographic images of a glass fiber reinforced polymer sample with artificial internal defects are presented, acquired using the tomography system.

© 2016 Optical Society of America

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References

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2015 (2)

2014 (4)

T. Nagatsuma, H. Nishii, and T. Ikeo, “Terahertz imaging based on optical coherence tomography,” Photonics Res. 2(4), B64–B69 (2014).
[Crossref]

E. Cristofani, F. Friederich, S. Wohnsiedler, C. Matheis, J. Jonuscheit, M. Vandewal, and R. Beigang, “Nondestructive testing potential evaluation of a terahertz frequency-modulated continuous-wave imager for composite materials inspection,” Opt. Eng. 53(3), 031211 (2014).
[Crossref]

M. Langenbach, A. Roggenbuck, I. Cámara Mayorga, A. Deninger, K. Thirunavukkuarasu, J. Hemberger, and M. Grüninger, “Group delay in THz spectroscopy with ultra-wideband log-spiral antennae,” J. Infrared Millim. Terahertz Waves 35(11), 918–931 (2014).
[Crossref]

M. Bonesi, M. P. Minneman, J. Ensher, B. Zabihian, H. Sattmann, P. Boschert, E. Hoover, R. A. Leitgeb, M. Crawford, and W. Drexler, “Akinetic all-semiconductor programmable swept-source at 1550 nm and 1310 nm with centimeters coherence length,” Opt. Express 22(3), 2632–2655 (2014).
[Crossref] [PubMed]

2013 (2)

T. Ikeo, T. Isogawa, and T. Nagatsuma, “Three dimensional millimeter- and terahertz-wave imaging based on optical coherence tomography,” IEICE Trans. Electron. E96(C), 1210–1217 (2013).
[Crossref]

M. Jewariya, E. Abraham, T. Kitaguchi, Y. Ohgi, M. A. Minami, T. Araki, and T. Yasui, “Fast three-dimensional terahertz computed tomography using real-time line projection of intense terahertz pulse,” Opt. Express 21(2), 2423–2433 (2013).
[Crossref] [PubMed]

2012 (1)

2011 (1)

S. Zhong, Y.-C. Shen, L. Ho, R. K. May, J. A. Zeitler, M. Evans, P. F. Taday, M. Pepper, T. Rades, K. C. Gordon, R. Müller, and P. Kleinebudde, “Non-destructive quantification of pharmaceutical tablet coatings using terahertz pulsed imaging and optical coherence tomography,” Opt. Lasers Eng. 49(3), 361–365 (2011).
[Crossref]

2010 (2)

C. Stoik, M. Bohn, and J. Blackshire, “Nondestructive evaluation of aircraft composites using reflective terahertz time domain spectroscopy,” NDT Int. 43(2), 106–115 (2010).
[Crossref]

A. Roggenbuck, H. Schmitz, A. Deninger, I. C. Mayorga, J. Hemberger, R. Güsten, and M. Grüninger, “Coherent broadband continuous-wave terahertz spectroscopy on solid-state samples,” New J. Phys. 12(4), 043017 (2010).
[Crossref]

2009 (2)

2008 (1)

2006 (1)

T. Yasuda, T. Yasui, T. Araki, and E. Abraham, “Real-time two-dimensional terahertz tomography of moving objects,” Opt. Commun. 267(1), 128–136 (2006).
[Crossref]

2005 (1)

H. Zhong, J. Xu, X. Xie, T. Yuan, R. Reightler, E. Madaras, and X.-C. Zhang, “Nondestructive defect identification with terahertz time-of-flight tomography,” IEEE Sens. J. 5(2), 203–208 (2005).
[Crossref]

2004 (1)

2002 (2)

R. M. Woodward, B. E. Cole, V. P. Wallace, R. J. Pye, D. D. Arnone, E. H. Linfield, and M. Pepper, “Terahertz pulse imaging in reflection geometry of human skin cancer and skin tissue,” Phys. Med. Biol. 47(21), 3853–3863 (2002).
[Crossref] [PubMed]

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]

1998 (1)

C. Winnewisser, F. Lewen, and H. Helm, “Transmission characteristics of dichroic filters measured by THz time-domain spectroscopy,” Appl. Phys., A Mater. Sci. Process. 66(6), 593–598 (1998).
[Crossref]

1997 (1)

Abbot, D.

Abraham, E.

Araki, T.

Arnone, D. D.

R. M. Woodward, B. E. Cole, V. P. Wallace, R. J. Pye, D. D. Arnone, E. H. Linfield, and M. Pepper, “Terahertz pulse imaging in reflection geometry of human skin cancer and skin tissue,” Phys. Med. Biol. 47(21), 3853–3863 (2002).
[Crossref] [PubMed]

Beigang, R.

E. Cristofani, F. Friederich, S. Wohnsiedler, C. Matheis, J. Jonuscheit, M. Vandewal, and R. Beigang, “Nondestructive testing potential evaluation of a terahertz frequency-modulated continuous-wave imager for composite materials inspection,” Opt. Eng. 53(3), 031211 (2014).
[Crossref]

Blackshire, J.

C. Stoik, M. Bohn, and J. Blackshire, “Nondestructive evaluation of aircraft composites using reflective terahertz time domain spectroscopy,” NDT Int. 43(2), 106–115 (2010).
[Crossref]

Bohn, M.

C. Stoik, M. Bohn, and J. Blackshire, “Nondestructive evaluation of aircraft composites using reflective terahertz time domain spectroscopy,” NDT Int. 43(2), 106–115 (2010).
[Crossref]

Boivin, L.

Bonesi, M.

Boschert, P.

Cámara Mayorga, I.

M. Langenbach, A. Roggenbuck, I. Cámara Mayorga, A. Deninger, K. Thirunavukkuarasu, J. Hemberger, and M. Grüninger, “Group delay in THz spectroscopy with ultra-wideband log-spiral antennae,” J. Infrared Millim. Terahertz Waves 35(11), 918–931 (2014).
[Crossref]

Chen, Z.

Cho, S. H.

Cole, B. E.

R. M. Woodward, B. E. Cole, V. P. Wallace, R. J. Pye, D. D. Arnone, E. H. Linfield, and M. Pepper, “Terahertz pulse imaging in reflection geometry of human skin cancer and skin tissue,” Phys. Med. Biol. 47(21), 3853–3863 (2002).
[Crossref] [PubMed]

Crawford, M.

Cristofani, E.

E. Cristofani, F. Friederich, S. Wohnsiedler, C. Matheis, J. Jonuscheit, M. Vandewal, and R. Beigang, “Nondestructive testing potential evaluation of a terahertz frequency-modulated continuous-wave imager for composite materials inspection,” Opt. Eng. 53(3), 031211 (2014).
[Crossref]

Dai, J.

Deninger, A.

M. Langenbach, A. Roggenbuck, I. Cámara Mayorga, A. Deninger, K. Thirunavukkuarasu, J. Hemberger, and M. Grüninger, “Group delay in THz spectroscopy with ultra-wideband log-spiral antennae,” J. Infrared Millim. Terahertz Waves 35(11), 918–931 (2014).
[Crossref]

A. Roggenbuck, H. Schmitz, A. Deninger, I. C. Mayorga, J. Hemberger, R. Güsten, and M. Grüninger, “Coherent broadband continuous-wave terahertz spectroscopy on solid-state samples,” New J. Phys. 12(4), 043017 (2010).
[Crossref]

Don Lee, H.

Drexler, W.

Ensher, J.

Evans, M.

S. Zhong, Y.-C. Shen, L. Ho, R. K. May, J. A. Zeitler, M. Evans, P. F. Taday, M. Pepper, T. Rades, K. C. Gordon, R. Müller, and P. Kleinebudde, “Non-destructive quantification of pharmaceutical tablet coatings using terahertz pulsed imaging and optical coherence tomography,” Opt. Lasers Eng. 49(3), 361–365 (2011).
[Crossref]

Ferguson, B.

Friederich, F.

E. Cristofani, F. Friederich, S. Wohnsiedler, C. Matheis, J. Jonuscheit, M. Vandewal, and R. Beigang, “Nondestructive testing potential evaluation of a terahertz frequency-modulated continuous-wave imager for composite materials inspection,” Opt. Eng. 53(3), 031211 (2014).
[Crossref]

Gordon, K. C.

S. Zhong, Y.-C. Shen, L. Ho, R. K. May, J. A. Zeitler, M. Evans, P. F. Taday, M. Pepper, T. Rades, K. C. Gordon, R. Müller, and P. Kleinebudde, “Non-destructive quantification of pharmaceutical tablet coatings using terahertz pulsed imaging and optical coherence tomography,” Opt. Lasers Eng. 49(3), 361–365 (2011).
[Crossref]

Gray, D.

Grischkowsky, D.

Grüninger, M.

M. Langenbach, A. Roggenbuck, I. Cámara Mayorga, A. Deninger, K. Thirunavukkuarasu, J. Hemberger, and M. Grüninger, “Group delay in THz spectroscopy with ultra-wideband log-spiral antennae,” J. Infrared Millim. Terahertz Waves 35(11), 918–931 (2014).
[Crossref]

A. Roggenbuck, H. Schmitz, A. Deninger, I. C. Mayorga, J. Hemberger, R. Güsten, and M. Grüninger, “Coherent broadband continuous-wave terahertz spectroscopy on solid-state samples,” New J. Phys. 12(4), 043017 (2010).
[Crossref]

Güsten, R.

A. Roggenbuck, H. Schmitz, A. Deninger, I. C. Mayorga, J. Hemberger, R. Güsten, and M. Grüninger, “Coherent broadband continuous-wave terahertz spectroscopy on solid-state samples,” New J. Phys. 12(4), 043017 (2010).
[Crossref]

Helm, H.

C. Winnewisser, F. Lewen, and H. Helm, “Transmission characteristics of dichroic filters measured by THz time-domain spectroscopy,” Appl. Phys., A Mater. Sci. Process. 66(6), 593–598 (1998).
[Crossref]

Hemberger, J.

M. Langenbach, A. Roggenbuck, I. Cámara Mayorga, A. Deninger, K. Thirunavukkuarasu, J. Hemberger, and M. Grüninger, “Group delay in THz spectroscopy with ultra-wideband log-spiral antennae,” J. Infrared Millim. Terahertz Waves 35(11), 918–931 (2014).
[Crossref]

A. Roggenbuck, H. Schmitz, A. Deninger, I. C. Mayorga, J. Hemberger, R. Güsten, and M. Grüninger, “Coherent broadband continuous-wave terahertz spectroscopy on solid-state samples,” New J. Phys. 12(4), 043017 (2010).
[Crossref]

Ho, L.

S. Zhong, Y.-C. Shen, L. Ho, R. K. May, J. A. Zeitler, M. Evans, P. F. Taday, M. Pepper, T. Rades, K. C. Gordon, R. Müller, and P. Kleinebudde, “Non-destructive quantification of pharmaceutical tablet coatings using terahertz pulsed imaging and optical coherence tomography,” Opt. Lasers Eng. 49(3), 361–365 (2011).
[Crossref]

Hoover, E.

Hunsche, S.

Ichino, S.

Ikeo, T.

T. Nagatsuma, H. Nishii, and T. Ikeo, “Terahertz imaging based on optical coherence tomography,” Photonics Res. 2(4), B64–B69 (2014).
[Crossref]

T. Ikeo, T. Isogawa, and T. Nagatsuma, “Three dimensional millimeter- and terahertz-wave imaging based on optical coherence tomography,” IEICE Trans. Electron. E96(C), 1210–1217 (2013).
[Crossref]

Isogawa, T.

T. Ikeo, T. Isogawa, and T. Nagatsuma, “Three dimensional millimeter- and terahertz-wave imaging based on optical coherence tomography,” IEICE Trans. Electron. E96(C), 1210–1217 (2013).
[Crossref]

Jeon, M. Y.

Jeong, M. Y.

Jewariya, M.

Jin, K. H.

Jinno, H.

Jonuscheit, J.

E. Cristofani, F. Friederich, S. Wohnsiedler, C. Matheis, J. Jonuscheit, M. Vandewal, and R. Beigang, “Nondestructive testing potential evaluation of a terahertz frequency-modulated continuous-wave imager for composite materials inspection,” Opt. Eng. 53(3), 031211 (2014).
[Crossref]

Jung, E. J.

Jung, W.

Kasai, S.

Kawai, M.

Kawase, K.

Kim, C. Y.

Kim, C.-S.

Kim, M. K.

Kim, Y.-G.

Kitaguchi, T.

Kleinebudde, P.

S. Zhong, Y.-C. Shen, L. Ho, R. K. May, J. A. Zeitler, M. Evans, P. F. Taday, M. Pepper, T. Rades, K. C. Gordon, R. Müller, and P. Kleinebudde, “Non-destructive quantification of pharmaceutical tablet coatings using terahertz pulsed imaging and optical coherence tomography,” Opt. Lasers Eng. 49(3), 361–365 (2011).
[Crossref]

Langenbach, M.

M. Langenbach, A. Roggenbuck, I. Cámara Mayorga, A. Deninger, K. Thirunavukkuarasu, J. Hemberger, and M. Grüninger, “Group delay in THz spectroscopy with ultra-wideband log-spiral antennae,” J. Infrared Millim. Terahertz Waves 35(11), 918–931 (2014).
[Crossref]

Leitgeb, R. A.

Lewen, F.

C. Winnewisser, F. Lewen, and H. Helm, “Transmission characteristics of dichroic filters measured by THz time-domain spectroscopy,” Appl. Phys., A Mater. Sci. Process. 66(6), 593–598 (1998).
[Crossref]

Linfield, E. H.

R. M. Woodward, B. E. Cole, V. P. Wallace, R. J. Pye, D. D. Arnone, E. H. Linfield, and M. Pepper, “Terahertz pulse imaging in reflection geometry of human skin cancer and skin tissue,” Phys. Med. Biol. 47(21), 3853–3863 (2002).
[Crossref] [PubMed]

Madaras, E.

H. Zhong, J. Xu, X. Xie, T. Yuan, R. Reightler, E. Madaras, and X.-C. Zhang, “Nondestructive defect identification with terahertz time-of-flight tomography,” IEEE Sens. J. 5(2), 203–208 (2005).
[Crossref]

Maikusa, N.

Matheis, C.

E. Cristofani, F. Friederich, S. Wohnsiedler, C. Matheis, J. Jonuscheit, M. Vandewal, and R. Beigang, “Nondestructive testing potential evaluation of a terahertz frequency-modulated continuous-wave imager for composite materials inspection,” Opt. Eng. 53(3), 031211 (2014).
[Crossref]

May, R. K.

S. Zhong, Y.-C. Shen, L. Ho, R. K. May, J. A. Zeitler, M. Evans, P. F. Taday, M. Pepper, T. Rades, K. C. Gordon, R. Müller, and P. Kleinebudde, “Non-destructive quantification of pharmaceutical tablet coatings using terahertz pulsed imaging and optical coherence tomography,” Opt. Lasers Eng. 49(3), 361–365 (2011).
[Crossref]

Mayorga, I. C.

A. Roggenbuck, H. Schmitz, A. Deninger, I. C. Mayorga, J. Hemberger, R. Güsten, and M. Grüninger, “Coherent broadband continuous-wave terahertz spectroscopy on solid-state samples,” New J. Phys. 12(4), 043017 (2010).
[Crossref]

Minami, M. A.

Minneman, M. P.

Mittleman, D. M.

Müller, R.

S. Zhong, Y.-C. Shen, L. Ho, R. K. May, J. A. Zeitler, M. Evans, P. F. Taday, M. Pepper, T. Rades, K. C. Gordon, R. Müller, and P. Kleinebudde, “Non-destructive quantification of pharmaceutical tablet coatings using terahertz pulsed imaging and optical coherence tomography,” Opt. Lasers Eng. 49(3), 361–365 (2011).
[Crossref]

Nagatsuma, T.

T. Nagatsuma, H. Nishii, and T. Ikeo, “Terahertz imaging based on optical coherence tomography,” Photonics Res. 2(4), B64–B69 (2014).
[Crossref]

T. Ikeo, T. Isogawa, and T. Nagatsuma, “Three dimensional millimeter- and terahertz-wave imaging based on optical coherence tomography,” IEICE Trans. Electron. E96(C), 1210–1217 (2013).
[Crossref]

Nishii, H.

T. Nagatsuma, H. Nishii, and T. Ikeo, “Terahertz imaging based on optical coherence tomography,” Photonics Res. 2(4), B64–B69 (2014).
[Crossref]

Nishizawa, N.

Nuss, M. C.

Ohgi, Y.

Ohtake, H.

Otani, C.

Ouchi, T.

Park, C.-S.

Pepper, M.

S. Zhong, Y.-C. Shen, L. Ho, R. K. May, J. A. Zeitler, M. Evans, P. F. Taday, M. Pepper, T. Rades, K. C. Gordon, R. Müller, and P. Kleinebudde, “Non-destructive quantification of pharmaceutical tablet coatings using terahertz pulsed imaging and optical coherence tomography,” Opt. Lasers Eng. 49(3), 361–365 (2011).
[Crossref]

R. M. Woodward, B. E. Cole, V. P. Wallace, R. J. Pye, D. D. Arnone, E. H. Linfield, and M. Pepper, “Terahertz pulse imaging in reflection geometry of human skin cancer and skin tissue,” Phys. Med. Biol. 47(21), 3853–3863 (2002).
[Crossref] [PubMed]

Pye, R. J.

R. M. Woodward, B. E. Cole, V. P. Wallace, R. J. Pye, D. D. Arnone, E. H. Linfield, and M. Pepper, “Terahertz pulse imaging in reflection geometry of human skin cancer and skin tissue,” Phys. Med. Biol. 47(21), 3853–3863 (2002).
[Crossref] [PubMed]

Rades, T.

S. Zhong, Y.-C. Shen, L. Ho, R. K. May, J. A. Zeitler, M. Evans, P. F. Taday, M. Pepper, T. Rades, K. C. Gordon, R. Müller, and P. Kleinebudde, “Non-destructive quantification of pharmaceutical tablet coatings using terahertz pulsed imaging and optical coherence tomography,” Opt. Lasers Eng. 49(3), 361–365 (2011).
[Crossref]

Reightler, R.

H. Zhong, J. Xu, X. Xie, T. Yuan, R. Reightler, E. Madaras, and X.-C. Zhang, “Nondestructive defect identification with terahertz time-of-flight tomography,” IEEE Sens. J. 5(2), 203–208 (2005).
[Crossref]

Roggenbuck, A.

M. Langenbach, A. Roggenbuck, I. Cámara Mayorga, A. Deninger, K. Thirunavukkuarasu, J. Hemberger, and M. Grüninger, “Group delay in THz spectroscopy with ultra-wideband log-spiral antennae,” J. Infrared Millim. Terahertz Waves 35(11), 918–931 (2014).
[Crossref]

A. Roggenbuck, H. Schmitz, A. Deninger, I. C. Mayorga, J. Hemberger, R. Güsten, and M. Grüninger, “Coherent broadband continuous-wave terahertz spectroscopy on solid-state samples,” New J. Phys. 12(4), 043017 (2010).
[Crossref]

Sasaki, Y.

Sattmann, H.

Schmitz, H.

A. Roggenbuck, H. Schmitz, A. Deninger, I. C. Mayorga, J. Hemberger, R. Güsten, and M. Grüninger, “Coherent broadband continuous-wave terahertz spectroscopy on solid-state samples,” New J. Phys. 12(4), 043017 (2010).
[Crossref]

Shen, Y.-C.

S. Zhong, Y.-C. Shen, L. Ho, R. K. May, J. A. Zeitler, M. Evans, P. F. Taday, M. Pepper, T. Rades, K. C. Gordon, R. Müller, and P. Kleinebudde, “Non-destructive quantification of pharmaceutical tablet coatings using terahertz pulsed imaging and optical coherence tomography,” Opt. Lasers Eng. 49(3), 361–365 (2011).
[Crossref]

Stoik, C.

C. Stoik, M. Bohn, and J. Blackshire, “Nondestructive evaluation of aircraft composites using reflective terahertz time domain spectroscopy,” NDT Int. 43(2), 106–115 (2010).
[Crossref]

Suizu, K.

Sunaguchi, N.

Taday, P. F.

S. Zhong, Y.-C. Shen, L. Ho, R. K. May, J. A. Zeitler, M. Evans, P. F. Taday, M. Pepper, T. Rades, K. C. Gordon, R. Müller, and P. Kleinebudde, “Non-destructive quantification of pharmaceutical tablet coatings using terahertz pulsed imaging and optical coherence tomography,” Opt. Lasers Eng. 49(3), 361–365 (2011).
[Crossref]

Takayanagi, J.

Thirunavukkuarasu, K.

M. Langenbach, A. Roggenbuck, I. Cámara Mayorga, A. Deninger, K. Thirunavukkuarasu, J. Hemberger, and M. Grüninger, “Group delay in THz spectroscopy with ultra-wideband log-spiral antennae,” J. Infrared Millim. Terahertz Waves 35(11), 918–931 (2014).
[Crossref]

Uchida, H.

Vandewal, M.

E. Cristofani, F. Friederich, S. Wohnsiedler, C. Matheis, J. Jonuscheit, M. Vandewal, and R. Beigang, “Nondestructive testing potential evaluation of a terahertz frequency-modulated continuous-wave imager for composite materials inspection,” Opt. Eng. 53(3), 031211 (2014).
[Crossref]

Wallace, V. P.

R. M. Woodward, B. E. Cole, V. P. Wallace, R. J. Pye, D. D. Arnone, E. H. Linfield, and M. Pepper, “Terahertz pulse imaging in reflection geometry of human skin cancer and skin tissue,” Phys. Med. Biol. 47(21), 3853–3863 (2002).
[Crossref] [PubMed]

Wang, S.

Winnewisser, C.

C. Winnewisser, F. Lewen, and H. Helm, “Transmission characteristics of dichroic filters measured by THz time-domain spectroscopy,” Appl. Phys., A Mater. Sci. Process. 66(6), 593–598 (1998).
[Crossref]

Wohnsiedler, S.

E. Cristofani, F. Friederich, S. Wohnsiedler, C. Matheis, J. Jonuscheit, M. Vandewal, and R. Beigang, “Nondestructive testing potential evaluation of a terahertz frequency-modulated continuous-wave imager for composite materials inspection,” Opt. Eng. 53(3), 031211 (2014).
[Crossref]

Woodward, R. M.

R. M. Woodward, B. E. Cole, V. P. Wallace, R. J. Pye, D. D. Arnone, E. H. Linfield, and M. Pepper, “Terahertz pulse imaging in reflection geometry of human skin cancer and skin tissue,” Phys. Med. Biol. 47(21), 3853–3863 (2002).
[Crossref] [PubMed]

Xie, X.

H. Zhong, J. Xu, X. Xie, T. Yuan, R. Reightler, E. Madaras, and X.-C. Zhang, “Nondestructive defect identification with terahertz time-of-flight tomography,” IEEE Sens. J. 5(2), 203–208 (2005).
[Crossref]

Xu, J.

H. Zhong, J. Xu, X. Xie, T. Yuan, R. Reightler, E. Madaras, and X.-C. Zhang, “Nondestructive defect identification with terahertz time-of-flight tomography,” IEEE Sens. J. 5(2), 203–208 (2005).
[Crossref]

Yahng, J. S.

Yamashita, M.

Yang, H.-S.

Yasuda, T.

T. Yasuda, T. Yasui, T. Araki, and E. Abraham, “Real-time two-dimensional terahertz tomography of moving objects,” Opt. Commun. 267(1), 128–136 (2006).
[Crossref]

Yasui, T.

Ye, J. C.

Yee, D.-S.

Yuan, T.

H. Zhong, J. Xu, X. Xie, T. Yuan, R. Reightler, E. Madaras, and X.-C. Zhang, “Nondestructive defect identification with terahertz time-of-flight tomography,” IEEE Sens. J. 5(2), 203–208 (2005).
[Crossref]

Yuasa, T.

Zabihian, B.

Zeitler, J. A.

S. Zhong, Y.-C. Shen, L. Ho, R. K. May, J. A. Zeitler, M. Evans, P. F. Taday, M. Pepper, T. Rades, K. C. Gordon, R. Müller, and P. Kleinebudde, “Non-destructive quantification of pharmaceutical tablet coatings using terahertz pulsed imaging and optical coherence tomography,” Opt. Lasers Eng. 49(3), 361–365 (2011).
[Crossref]

Zhang, J.

Zhang, W.

Zhang, X.-C.

H. Zhong, J. Xu, X. Xie, T. Yuan, R. Reightler, E. Madaras, and X.-C. Zhang, “Nondestructive defect identification with terahertz time-of-flight tomography,” IEEE Sens. J. 5(2), 203–208 (2005).
[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]

Zhong, H.

H. Zhong, J. Xu, X. Xie, T. Yuan, R. Reightler, E. Madaras, and X.-C. Zhang, “Nondestructive defect identification with terahertz time-of-flight tomography,” IEEE Sens. J. 5(2), 203–208 (2005).
[Crossref]

Zhong, S.

S. Zhong, Y.-C. Shen, L. Ho, R. K. May, J. A. Zeitler, M. Evans, P. F. Taday, M. Pepper, T. Rades, K. C. Gordon, R. Müller, and P. Kleinebudde, “Non-destructive quantification of pharmaceutical tablet coatings using terahertz pulsed imaging and optical coherence tomography,” Opt. Lasers Eng. 49(3), 361–365 (2011).
[Crossref]

Appl. Phys., A Mater. Sci. Process. (1)

C. Winnewisser, F. Lewen, and H. Helm, “Transmission characteristics of dichroic filters measured by THz time-domain spectroscopy,” Appl. Phys., A Mater. Sci. Process. 66(6), 593–598 (1998).
[Crossref]

IEEE Sens. J. (1)

H. Zhong, J. Xu, X. Xie, T. Yuan, R. Reightler, E. Madaras, and X.-C. Zhang, “Nondestructive defect identification with terahertz time-of-flight tomography,” IEEE Sens. J. 5(2), 203–208 (2005).
[Crossref]

IEICE Trans. Electron. (1)

T. Ikeo, T. Isogawa, and T. Nagatsuma, “Three dimensional millimeter- and terahertz-wave imaging based on optical coherence tomography,” IEICE Trans. Electron. E96(C), 1210–1217 (2013).
[Crossref]

J. Infrared Millim. Terahertz Waves (1)

M. Langenbach, A. Roggenbuck, I. Cámara Mayorga, A. Deninger, K. Thirunavukkuarasu, J. Hemberger, and M. Grüninger, “Group delay in THz spectroscopy with ultra-wideband log-spiral antennae,” J. Infrared Millim. Terahertz Waves 35(11), 918–931 (2014).
[Crossref]

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

NDT Int. (1)

C. Stoik, M. Bohn, and J. Blackshire, “Nondestructive evaluation of aircraft composites using reflective terahertz time domain spectroscopy,” NDT Int. 43(2), 106–115 (2010).
[Crossref]

New J. Phys. (1)

A. Roggenbuck, H. Schmitz, A. Deninger, I. C. Mayorga, J. Hemberger, R. Güsten, and M. Grüninger, “Coherent broadband continuous-wave terahertz spectroscopy on solid-state samples,” New J. Phys. 12(4), 043017 (2010).
[Crossref]

Opt. Commun. (1)

T. Yasuda, T. Yasui, T. Araki, and E. Abraham, “Real-time two-dimensional terahertz tomography of moving objects,” Opt. Commun. 267(1), 128–136 (2006).
[Crossref]

Opt. Eng. (1)

E. Cristofani, F. Friederich, S. Wohnsiedler, C. Matheis, J. Jonuscheit, M. Vandewal, and R. Beigang, “Nondestructive testing potential evaluation of a terahertz frequency-modulated continuous-wave imager for composite materials inspection,” Opt. Eng. 53(3), 031211 (2014).
[Crossref]

Opt. Express (8)

N. Sunaguchi, Y. Sasaki, N. Maikusa, M. Kawai, T. Yuasa, and C. Otani, “Depth-resolving THz imaging with tomosynthesis,” Opt. Express 17(12), 9558–9570 (2009).
[Crossref] [PubMed]

M. Jewariya, E. Abraham, T. Kitaguchi, Y. Ohgi, M. A. Minami, T. Araki, and T. Yasui, “Fast three-dimensional terahertz computed tomography using real-time line projection of intense terahertz pulse,” Opt. Express 21(2), 2423–2433 (2013).
[Crossref] [PubMed]

D.-S. Yee, J. S. Yahng, C.-S. Park, H. Don Lee, and C.-S. Kim, “High-speed broadband frequency sweep of continuous-wave terahertz radiation,” Opt. Express 23(11), 14806–14814 (2015).
[Crossref] [PubMed]

E. J. Jung, C.-S. Kim, M. Y. Jeong, M. K. Kim, M. Y. Jeon, W. Jung, and Z. Chen, “Characterization of FBG sensor interrogation based on a FDML wavelength swept laser,” Opt. Express 16(21), 16552–16560 (2008).
[PubMed]

J. Takayanagi, H. Jinno, S. Ichino, K. Suizu, M. Yamashita, T. Ouchi, S. Kasai, H. Ohtake, H. Uchida, N. Nishizawa, and K. Kawase, “High-resolution time-of-flight terahertz tomography using a femtosecond fiber laser,” Opt. Express 17(9), 7533–7555 (2009).
[Crossref] [PubMed]

K. H. Jin, Y.-G. Kim, S. H. Cho, J. C. Ye, and D.-S. Yee, “High-speed terahertz reflection three-dimensional imaging for nondestructive evaluation,” Opt. Express 20(23), 25432–25440 (2012).
[Crossref] [PubMed]

D.-S. Yee, K. H. Jin, J. S. Yahng, H.-S. Yang, C. Y. Kim, and J. C. Ye, “High-speed terahertz reflection three-dimensional imaging using beam steering,” Opt. Express 23(4), 5027–5034 (2015).
[Crossref] [PubMed]

M. Bonesi, M. P. Minneman, J. Ensher, B. Zabihian, H. Sattmann, P. Boschert, E. Hoover, R. A. Leitgeb, M. Crawford, and W. Drexler, “Akinetic all-semiconductor programmable swept-source at 1550 nm and 1310 nm with centimeters coherence length,” Opt. Express 22(3), 2632–2655 (2014).
[Crossref] [PubMed]

Opt. Lasers Eng. (1)

S. Zhong, Y.-C. Shen, L. Ho, R. K. May, J. A. Zeitler, M. Evans, P. F. Taday, M. Pepper, T. Rades, K. C. Gordon, R. Müller, and P. Kleinebudde, “Non-destructive quantification of pharmaceutical tablet coatings using terahertz pulsed imaging and optical coherence tomography,” Opt. Lasers Eng. 49(3), 361–365 (2011).
[Crossref]

Opt. Lett. (2)

Photonics Res. (1)

T. Nagatsuma, H. Nishii, and T. Ikeo, “Terahertz imaging based on optical coherence tomography,” Photonics Res. 2(4), B64–B69 (2014).
[Crossref]

Phys. Med. Biol. (1)

R. M. Woodward, B. E. Cole, V. P. Wallace, R. J. Pye, D. D. Arnone, E. H. Linfield, and M. Pepper, “Terahertz pulse imaging in reflection geometry of human skin cancer and skin tissue,” Phys. Med. Biol. 47(21), 3853–3863 (2002).
[Crossref] [PubMed]

Other (2)

W. Drexler and J. G. Fujimoto, Optical Coherence Tomography: Technology and Applications (Springer, 2008).

B. E. A. Saleh and M. C. Teich, Fundamentals of Photonics (Wiley-Interscience, 1991).

Supplementary Material (4)

NameDescription
» Visualization 1: MP4 (2560 KB)      B-scan images (5 averaged traces for 100 X 100 points)
» Visualization 2: MP4 (4350 KB)      3D image (5 averaged traces for 100 X 100 points)
» Visualization 3: MP4 (1203 KB)      B-scan images (50 averaged traces for 200 X 200 points)
» Visualization 4: MP4 (3007 KB)      3D image (50 averaged traces for 200 X 200 points)

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Figures (5)

Fig. 1
Fig. 1 Schematic diagram of our high-speed frequency-domain THz coherence tomography system. WSL: wavelength-swept laser, OFA: PM optical fiber amplifier, DFB-LD: distributed feedback laser diode, THz-Tx: THz CW transmitter, WG: waveform generator, VODL: variable optical delay line, THz-Rx: THz CW receiver, OAPM: off-axis parabolic mirror, BS: silicon beam splitter, GS: 2D galvanometer scanner, DPG: digital delay/pulse generator, Amp: current preamplifier.
Fig. 2
Fig. 2 (a) Frequency-domain THz interferogram for a flat metal mirror, measured at a time delay of 14 ps. (b) Normalized FFT amplitudes of the frequency-domain THz interferogram in (a) obtained with different cut-off frequencies. They are vertically shifted for clarity. (c) FWHM of the FFT amplitude peak as a function of the cut-off frequency. (d) Normalized FFT amplitudes of frequency-domain THz interferograms measured for Teflon sheets with 0.1, 0.2, 0.3, and 1.0 mm thicknesses. They were obtained with the cut-off frequency of 0.2 THz.
Fig. 3
Fig. 3 Maximum FFT amplitudes of THz interferograms measured for a flat metal mirror at different time delays with a sweep rate of 1 kHz. The red line indicates the FFT amplitude of a frequency-domain noise data measured with 5 averaged traces.
Fig. 4
Fig. 4 C-scan images of the flat metal mirror covering the right (a) and lower (b) half of the C-scan area. The black lines show the C-scan data along the X and Y axes in (a) and (b), respectively, and the yellow lines indicate the derivatives of the black lines. The black lines are plotted opposite to the yellow lines for clarity.
Fig. 5
Fig. 5 (a) Schematic design for the GFRP sample. The blue squares represent PTFE inserts and the green and red rectangles represent delaminations. The depths at which the defects lie are indicated in the design. The numbers are presented in millimeters. C-scan (b), B-scan (c), and 3D (d) images of the GFRP sample were constructed from A-scan data acquired with 5 averaged traces for 100 × 100 points in the C-scan range (See Visualization 1 and Visualization 2 for the B-scan and 3D images, respectively). Also, C-scan (e), B-scan (f), and 3D (g) images of the GFRP sample were obtained from A-scan data acquired with 50 averaged traces for 200 × 200 points in the C-scan range (See Visualization 3 and Visualization 4 for the B-scan and 3D images, respectively).

Equations (1)

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I ph E THz cos( 2π f THz τ )

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