Abstract

We present Terahertz (THz) imaging with a 1D multichannel time-domain spectroscopy (TDS) system which operates with a photoconductive array of 15 detection channels excited by a 1030 nm femtosecond fiber laser. The emitter and detector are photoconductive antennas based on InGaAs/InAlAs multi-layer heterostructures (MLHS). We characterized the THz optics and the resolution of the system. The performance is demonstrated by the multichannel imaging of two samples. A simultaneous measurement of 15 THz pulses with a pixel pitch of 1 mm increases the measurement speed of the TDS system by factor 15.

© 2014 Optical Society of America

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  1. C. Jansen, S. Wietzke, O. Peters, M. Scheller, N. Vieweg, M. Salhi, N. Krumbholz, C. Jördens, T. Hochrein, M. Koch, “Terahertz imaging: applications and perspectives,” Appl. Opt. 49(19), E48–E57 (2010).
    [CrossRef] [PubMed]
  2. D. M. Mittleman, M. Gupta, R. Neelamani, R. G. Baraniuk, J. V. Rudd, M. Koch, “Recent advances in terahertz imaging,” Appl. Phys. B 68(6), 1085–1094 (1999).
    [CrossRef]
  3. D. M. Mittleman, R. H. Jacobsen, M. C. Nuss, “T-ray imaging,” IEEE J. Sel. Top. Quantum Electron. 2(3), 679–692 (1996).
    [CrossRef]
  4. A. Brahm, M. Kunz, S. Riehemann, G. Notni, A. Tünnermann, “Volumetric spectral analysis of materials using terahertz-tomography techniques,” Appl. Phys. B 100(1), 151–158 (2010).
    [CrossRef]
  5. B. Pradarutti, G. Matthäus, S. Riehemann, G. Notni, S. Nolte, A. Tünnermann, “Advanced analysis concepts for terahertz time domain imaging,” Opt. Commun. 279(2), 248–254 (2007).
    [CrossRef]
  6. B. Sartorius, H. Roehle, H. Künzel, J. Böttcher, M. Schlak, D. Stanze, H. Venghaus, M. Schell, “All-fiber terahertz time-domain spectrometer operating at 1.5 microm telecom wavelengths,” Opt. Express 16(13), 9565–9570 (2008).
    [CrossRef] [PubMed]
  7. R. Wilk, S. Kocur, T. Hochrein, M. Mei, and R. Holzwarth, “Imaging with THz OSCAT spectrometer,” in 36th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz) (2011).
    [CrossRef]
  8. M. Haaser, Y. Karrout, C. Velghe, Y. Cuppok, K. C. Gordon, M. Pepper, J. Siepmann, T. Rades, P. F. Taday, C. J. Strachan, “Application of terahertz pulsed imaging to analyse film coating characteristics of sustained-release coated pellets,” Int. J. Pharm. 457(2), 521–526 (2013).
    [CrossRef] [PubMed]
  9. G. Matthäus, T. Schreiber, J. Limpert, S. Nolte, G. Torosyan, R. Beigang, S. Riehemann, G. Notni, A. Tünnermann, “Surface-emitted THz generation using a compact ultrashort pulse fiber amplifier at 1060 nm,” Opt. Commun. 261(1), 114–117 (2006).
    [CrossRef]
  10. B. Pradarutti, G. Matthäus, C. Brückner, J. Limpert, S. Riehemann, G. Notni, S. Nolte, A. Tünnermann, “Electrooptical sampling of ultrashort THz pulses by fs-laser pulses at 1060 nm,” Appl. Phys. B 85(1), 59–62 (2006).
    [CrossRef]
  11. X. C. Zhang, “Terahertz wave imaging: horizons and hurdles,” Phys. Med. Biol. 47(21), 3667–3677 (2002).
    [CrossRef] [PubMed]
  12. M. Tonouchi, “Cutting-edge terahertz technology,” Nat. Photonics 1(2), 97–105 (2007).
    [CrossRef]
  13. M. Herrmann, M. Tani, K. Sakai, M. Watanabe, “Towards multi-channel time-domain terahertz imaging with photoconductive antennas,” in International Topical Meeting on Microwave Photonics (2002).
    [CrossRef]
  14. B. Pradarutti, R. Müller, W. Freese, G. Matthäus, S. Riehemann, G. Notni, S. Nolte, A. Tünnermann, “Terahertz line detection by a microlens array coupled photoconductive antenna array,” Opt. Express 16(22), 18443–18450 (2008).
    [CrossRef] [PubMed]
  15. S. Wohnsiedler, M. Kolano, J. Klier, M. Herrmann, J. Jonuscheit, R. Beigang, E. Peytavit, and J. - Lampin, “Multichannel THz imaging using arrays of photoconductive antennas,” in 35th International Conference on Infrared Millimeter and Terahertz Waves (IRMMW-THz) (2010).
  16. A. Brahm, S. Scharnowski, B. Pradarutti, G. Matthaus, C. Brückner, S. Riehemann, S. Nolte, G. Notni, and A. Tünnermann, “128 channel THz ultrashort pulse system, ” in European Quantum Electronics Conference in Lasers and Electro-Optics (2009).
  17. C. Gerth, R. J. B. Dietz, T. Göbel, M. Schell, A. Brahm, G. Notni, and A. Tünnermann, “Highly efficient terahertz photoconductive switch at 1060nm excitation wavelength,” in 38th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) (2013).
    [CrossRef]
  18. R. J. B. Dietz, R. Wilk, B. Globisch, H. Roehle, D. Stanze, S. Ullrich, S. Schumann, N. Born, M. Koch, B. Sartorius, M. Schell, “Low temperature grown Be-doped InGaAs/InAlAs photoconductive antennas excited at 1030 nm,” J. Infrared Millimeter Waves 34(3–4), 231–237 (2013).
    [CrossRef]
  19. R. J. B. Dietz, M. Gerhard, D. Stanze, M. Koch, B. Sartorius, M. Schell, “THz generation at 1.55 µm excitation: six-fold increase in THz conversion efficiency by separated photoconductive and trapping regions,” Opt. Express 19(27), 25911–25917 (2011).
    [CrossRef] [PubMed]
  20. R. J. B. Dietz, B. Globisch, M. Gerhard, A. Velauthapillai, D. Stanze, H. Roehle, M. Koch, T. Gobel, M. Schell, “64 µW pulsed terahertz emission from growth optimized InGaAs/InAlAs heterostructures with separated photoconductive and trapping regions,” Appl. Phys. Lett. 103(6), 061103 (2013).
    [CrossRef]
  21. H. Roehle, R. J. B. Dietz, H. J. Hensel, J. Böttcher, H. Künzel, D. Stanze, M. Schell, B. Sartorius, “Next generation 1.5 microm terahertz antennas: mesa-structuring of InGaAs/InAlAs photoconductive layers,” Opt. Express 18(3), 2296–2301 (2010).
    [CrossRef] [PubMed]
  22. C. Brückner, B. Pradarutti, R. Müller, S. Riehemann, G. Notni, A. Tünnermann, “Design and evaluation of a THz time domain imaging system using standard optical design software,” Appl. Opt. 47(27), 4994–5006 (2008).
    [CrossRef] [PubMed]
  23. C. Brückner, B. Pradarutti, S. Riehemann, G. Notni, and A. Tünnermann, “Design of a THz optics for a 128 channel THz imaging system,” in 34th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) (2009).
    [CrossRef]
  24. C. Brückner, G. Notni, A. Tünnermann, “Optimal arrangement of 90° off-axis parabolic mirrors,” Opt. Int. J. Light Electron. Opt. 121(1), 113–119 (2010).
    [CrossRef]
  25. A. Brahm, M. Müller, C. Gerth, and G. Notni, “Development of a multichannel lock-in amplifier for Terahertz time-domain systems,” in 37th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) (2012).
    [CrossRef]
  26. J. Dai, J. Zhang, W. Zhang, D. Grischkowsky, “Terahertz time-domain spectroscopy characterization of the far-infrared absorption and index of refraction of high-resistivity, float-zone silicon,” J. Opt. Soc. Am. B 21(7), 1379–1386 (2004).
    [CrossRef]
  27. J. M. Khosrofian, B. A. Garetz, “Measurement of a Gaussian laser beam diameter through the direct inversion of knife-edge data,” Appl. Opt. 22(21), 3406–3410 (1983).
    [CrossRef] [PubMed]
  28. J. Magnes, D. Odera, J. Hartke, M. Fountain, L. Florence, and V. Davis, “Quantitative and qualitative study of gaussian beam visualization techniques,” arXiv:physics/0605102 v1 (2006).
  29. B. Pradarutti, C. Rau, G. Torosyan, R. Beigang, K. Kawase, “Plasmonic response in a one-dimensional periodic structure of metallic rods,” Appl. Phys. Lett. 87(20), 204105 (2005).
    [CrossRef]
  30. B. Dörband, H. Müller, and H. Gross, Handbook of Optical Systems, Metrology of Optical Components and Systems, 5th ed. (John Wiley, 2012).

2013 (3)

M. Haaser, Y. Karrout, C. Velghe, Y. Cuppok, K. C. Gordon, M. Pepper, J. Siepmann, T. Rades, P. F. Taday, C. J. Strachan, “Application of terahertz pulsed imaging to analyse film coating characteristics of sustained-release coated pellets,” Int. J. Pharm. 457(2), 521–526 (2013).
[CrossRef] [PubMed]

R. J. B. Dietz, R. Wilk, B. Globisch, H. Roehle, D. Stanze, S. Ullrich, S. Schumann, N. Born, M. Koch, B. Sartorius, M. Schell, “Low temperature grown Be-doped InGaAs/InAlAs photoconductive antennas excited at 1030 nm,” J. Infrared Millimeter Waves 34(3–4), 231–237 (2013).
[CrossRef]

R. J. B. Dietz, B. Globisch, M. Gerhard, A. Velauthapillai, D. Stanze, H. Roehle, M. Koch, T. Gobel, M. Schell, “64 µW pulsed terahertz emission from growth optimized InGaAs/InAlAs heterostructures with separated photoconductive and trapping regions,” Appl. Phys. Lett. 103(6), 061103 (2013).
[CrossRef]

2011 (1)

2010 (4)

H. Roehle, R. J. B. Dietz, H. J. Hensel, J. Böttcher, H. Künzel, D. Stanze, M. Schell, B. Sartorius, “Next generation 1.5 microm terahertz antennas: mesa-structuring of InGaAs/InAlAs photoconductive layers,” Opt. Express 18(3), 2296–2301 (2010).
[CrossRef] [PubMed]

C. Jansen, S. Wietzke, O. Peters, M. Scheller, N. Vieweg, M. Salhi, N. Krumbholz, C. Jördens, T. Hochrein, M. Koch, “Terahertz imaging: applications and perspectives,” Appl. Opt. 49(19), E48–E57 (2010).
[CrossRef] [PubMed]

C. Brückner, G. Notni, A. Tünnermann, “Optimal arrangement of 90° off-axis parabolic mirrors,” Opt. Int. J. Light Electron. Opt. 121(1), 113–119 (2010).
[CrossRef]

A. Brahm, M. Kunz, S. Riehemann, G. Notni, A. Tünnermann, “Volumetric spectral analysis of materials using terahertz-tomography techniques,” Appl. Phys. B 100(1), 151–158 (2010).
[CrossRef]

2008 (3)

2007 (2)

M. Tonouchi, “Cutting-edge terahertz technology,” Nat. Photonics 1(2), 97–105 (2007).
[CrossRef]

B. Pradarutti, G. Matthäus, S. Riehemann, G. Notni, S. Nolte, A. Tünnermann, “Advanced analysis concepts for terahertz time domain imaging,” Opt. Commun. 279(2), 248–254 (2007).
[CrossRef]

2006 (2)

G. Matthäus, T. Schreiber, J. Limpert, S. Nolte, G. Torosyan, R. Beigang, S. Riehemann, G. Notni, A. Tünnermann, “Surface-emitted THz generation using a compact ultrashort pulse fiber amplifier at 1060 nm,” Opt. Commun. 261(1), 114–117 (2006).
[CrossRef]

B. Pradarutti, G. Matthäus, C. Brückner, J. Limpert, S. Riehemann, G. Notni, S. Nolte, A. Tünnermann, “Electrooptical sampling of ultrashort THz pulses by fs-laser pulses at 1060 nm,” Appl. Phys. B 85(1), 59–62 (2006).
[CrossRef]

2005 (1)

B. Pradarutti, C. Rau, G. Torosyan, R. Beigang, K. Kawase, “Plasmonic response in a one-dimensional periodic structure of metallic rods,” Appl. Phys. Lett. 87(20), 204105 (2005).
[CrossRef]

2004 (1)

2002 (1)

X. C. Zhang, “Terahertz wave imaging: horizons and hurdles,” Phys. Med. Biol. 47(21), 3667–3677 (2002).
[CrossRef] [PubMed]

1999 (1)

D. M. Mittleman, M. Gupta, R. Neelamani, R. G. Baraniuk, J. V. Rudd, M. Koch, “Recent advances in terahertz imaging,” Appl. Phys. B 68(6), 1085–1094 (1999).
[CrossRef]

1996 (1)

D. M. Mittleman, R. H. Jacobsen, M. C. Nuss, “T-ray imaging,” IEEE J. Sel. Top. Quantum Electron. 2(3), 679–692 (1996).
[CrossRef]

1983 (1)

Baraniuk, R. G.

D. M. Mittleman, M. Gupta, R. Neelamani, R. G. Baraniuk, J. V. Rudd, M. Koch, “Recent advances in terahertz imaging,” Appl. Phys. B 68(6), 1085–1094 (1999).
[CrossRef]

Beigang, R.

G. Matthäus, T. Schreiber, J. Limpert, S. Nolte, G. Torosyan, R. Beigang, S. Riehemann, G. Notni, A. Tünnermann, “Surface-emitted THz generation using a compact ultrashort pulse fiber amplifier at 1060 nm,” Opt. Commun. 261(1), 114–117 (2006).
[CrossRef]

B. Pradarutti, C. Rau, G. Torosyan, R. Beigang, K. Kawase, “Plasmonic response in a one-dimensional periodic structure of metallic rods,” Appl. Phys. Lett. 87(20), 204105 (2005).
[CrossRef]

Born, N.

R. J. B. Dietz, R. Wilk, B. Globisch, H. Roehle, D. Stanze, S. Ullrich, S. Schumann, N. Born, M. Koch, B. Sartorius, M. Schell, “Low temperature grown Be-doped InGaAs/InAlAs photoconductive antennas excited at 1030 nm,” J. Infrared Millimeter Waves 34(3–4), 231–237 (2013).
[CrossRef]

Böttcher, J.

Brahm, A.

A. Brahm, M. Kunz, S. Riehemann, G. Notni, A. Tünnermann, “Volumetric spectral analysis of materials using terahertz-tomography techniques,” Appl. Phys. B 100(1), 151–158 (2010).
[CrossRef]

Brückner, C.

C. Brückner, G. Notni, A. Tünnermann, “Optimal arrangement of 90° off-axis parabolic mirrors,” Opt. Int. J. Light Electron. Opt. 121(1), 113–119 (2010).
[CrossRef]

C. Brückner, B. Pradarutti, R. Müller, S. Riehemann, G. Notni, A. Tünnermann, “Design and evaluation of a THz time domain imaging system using standard optical design software,” Appl. Opt. 47(27), 4994–5006 (2008).
[CrossRef] [PubMed]

B. Pradarutti, G. Matthäus, C. Brückner, J. Limpert, S. Riehemann, G. Notni, S. Nolte, A. Tünnermann, “Electrooptical sampling of ultrashort THz pulses by fs-laser pulses at 1060 nm,” Appl. Phys. B 85(1), 59–62 (2006).
[CrossRef]

Cuppok, Y.

M. Haaser, Y. Karrout, C. Velghe, Y. Cuppok, K. C. Gordon, M. Pepper, J. Siepmann, T. Rades, P. F. Taday, C. J. Strachan, “Application of terahertz pulsed imaging to analyse film coating characteristics of sustained-release coated pellets,” Int. J. Pharm. 457(2), 521–526 (2013).
[CrossRef] [PubMed]

Dai, J.

Dietz, R. J. B.

R. J. B. Dietz, B. Globisch, M. Gerhard, A. Velauthapillai, D. Stanze, H. Roehle, M. Koch, T. Gobel, M. Schell, “64 µW pulsed terahertz emission from growth optimized InGaAs/InAlAs heterostructures with separated photoconductive and trapping regions,” Appl. Phys. Lett. 103(6), 061103 (2013).
[CrossRef]

R. J. B. Dietz, R. Wilk, B. Globisch, H. Roehle, D. Stanze, S. Ullrich, S. Schumann, N. Born, M. Koch, B. Sartorius, M. Schell, “Low temperature grown Be-doped InGaAs/InAlAs photoconductive antennas excited at 1030 nm,” J. Infrared Millimeter Waves 34(3–4), 231–237 (2013).
[CrossRef]

R. J. B. Dietz, M. Gerhard, D. Stanze, M. Koch, B. Sartorius, M. Schell, “THz generation at 1.55 µm excitation: six-fold increase in THz conversion efficiency by separated photoconductive and trapping regions,” Opt. Express 19(27), 25911–25917 (2011).
[CrossRef] [PubMed]

H. Roehle, R. J. B. Dietz, H. J. Hensel, J. Böttcher, H. Künzel, D. Stanze, M. Schell, B. Sartorius, “Next generation 1.5 microm terahertz antennas: mesa-structuring of InGaAs/InAlAs photoconductive layers,” Opt. Express 18(3), 2296–2301 (2010).
[CrossRef] [PubMed]

Freese, W.

Garetz, B. A.

Gerhard, M.

R. J. B. Dietz, B. Globisch, M. Gerhard, A. Velauthapillai, D. Stanze, H. Roehle, M. Koch, T. Gobel, M. Schell, “64 µW pulsed terahertz emission from growth optimized InGaAs/InAlAs heterostructures with separated photoconductive and trapping regions,” Appl. Phys. Lett. 103(6), 061103 (2013).
[CrossRef]

R. J. B. Dietz, M. Gerhard, D. Stanze, M. Koch, B. Sartorius, M. Schell, “THz generation at 1.55 µm excitation: six-fold increase in THz conversion efficiency by separated photoconductive and trapping regions,” Opt. Express 19(27), 25911–25917 (2011).
[CrossRef] [PubMed]

Globisch, B.

R. J. B. Dietz, R. Wilk, B. Globisch, H. Roehle, D. Stanze, S. Ullrich, S. Schumann, N. Born, M. Koch, B. Sartorius, M. Schell, “Low temperature grown Be-doped InGaAs/InAlAs photoconductive antennas excited at 1030 nm,” J. Infrared Millimeter Waves 34(3–4), 231–237 (2013).
[CrossRef]

R. J. B. Dietz, B. Globisch, M. Gerhard, A. Velauthapillai, D. Stanze, H. Roehle, M. Koch, T. Gobel, M. Schell, “64 µW pulsed terahertz emission from growth optimized InGaAs/InAlAs heterostructures with separated photoconductive and trapping regions,” Appl. Phys. Lett. 103(6), 061103 (2013).
[CrossRef]

Gobel, T.

R. J. B. Dietz, B. Globisch, M. Gerhard, A. Velauthapillai, D. Stanze, H. Roehle, M. Koch, T. Gobel, M. Schell, “64 µW pulsed terahertz emission from growth optimized InGaAs/InAlAs heterostructures with separated photoconductive and trapping regions,” Appl. Phys. Lett. 103(6), 061103 (2013).
[CrossRef]

Gordon, K. C.

M. Haaser, Y. Karrout, C. Velghe, Y. Cuppok, K. C. Gordon, M. Pepper, J. Siepmann, T. Rades, P. F. Taday, C. J. Strachan, “Application of terahertz pulsed imaging to analyse film coating characteristics of sustained-release coated pellets,” Int. J. Pharm. 457(2), 521–526 (2013).
[CrossRef] [PubMed]

Grischkowsky, D.

Gupta, M.

D. M. Mittleman, M. Gupta, R. Neelamani, R. G. Baraniuk, J. V. Rudd, M. Koch, “Recent advances in terahertz imaging,” Appl. Phys. B 68(6), 1085–1094 (1999).
[CrossRef]

Haaser, M.

M. Haaser, Y. Karrout, C. Velghe, Y. Cuppok, K. C. Gordon, M. Pepper, J. Siepmann, T. Rades, P. F. Taday, C. J. Strachan, “Application of terahertz pulsed imaging to analyse film coating characteristics of sustained-release coated pellets,” Int. J. Pharm. 457(2), 521–526 (2013).
[CrossRef] [PubMed]

Hensel, H. J.

Herrmann, M.

M. Herrmann, M. Tani, K. Sakai, M. Watanabe, “Towards multi-channel time-domain terahertz imaging with photoconductive antennas,” in International Topical Meeting on Microwave Photonics (2002).
[CrossRef]

Hochrein, T.

Jacobsen, R. H.

D. M. Mittleman, R. H. Jacobsen, M. C. Nuss, “T-ray imaging,” IEEE J. Sel. Top. Quantum Electron. 2(3), 679–692 (1996).
[CrossRef]

Jansen, C.

Jördens, C.

Karrout, Y.

M. Haaser, Y. Karrout, C. Velghe, Y. Cuppok, K. C. Gordon, M. Pepper, J. Siepmann, T. Rades, P. F. Taday, C. J. Strachan, “Application of terahertz pulsed imaging to analyse film coating characteristics of sustained-release coated pellets,” Int. J. Pharm. 457(2), 521–526 (2013).
[CrossRef] [PubMed]

Kawase, K.

B. Pradarutti, C. Rau, G. Torosyan, R. Beigang, K. Kawase, “Plasmonic response in a one-dimensional periodic structure of metallic rods,” Appl. Phys. Lett. 87(20), 204105 (2005).
[CrossRef]

Khosrofian, J. M.

Koch, M.

R. J. B. Dietz, B. Globisch, M. Gerhard, A. Velauthapillai, D. Stanze, H. Roehle, M. Koch, T. Gobel, M. Schell, “64 µW pulsed terahertz emission from growth optimized InGaAs/InAlAs heterostructures with separated photoconductive and trapping regions,” Appl. Phys. Lett. 103(6), 061103 (2013).
[CrossRef]

R. J. B. Dietz, R. Wilk, B. Globisch, H. Roehle, D. Stanze, S. Ullrich, S. Schumann, N. Born, M. Koch, B. Sartorius, M. Schell, “Low temperature grown Be-doped InGaAs/InAlAs photoconductive antennas excited at 1030 nm,” J. Infrared Millimeter Waves 34(3–4), 231–237 (2013).
[CrossRef]

R. J. B. Dietz, M. Gerhard, D. Stanze, M. Koch, B. Sartorius, M. Schell, “THz generation at 1.55 µm excitation: six-fold increase in THz conversion efficiency by separated photoconductive and trapping regions,” Opt. Express 19(27), 25911–25917 (2011).
[CrossRef] [PubMed]

C. Jansen, S. Wietzke, O. Peters, M. Scheller, N. Vieweg, M. Salhi, N. Krumbholz, C. Jördens, T. Hochrein, M. Koch, “Terahertz imaging: applications and perspectives,” Appl. Opt. 49(19), E48–E57 (2010).
[CrossRef] [PubMed]

D. M. Mittleman, M. Gupta, R. Neelamani, R. G. Baraniuk, J. V. Rudd, M. Koch, “Recent advances in terahertz imaging,” Appl. Phys. B 68(6), 1085–1094 (1999).
[CrossRef]

Krumbholz, N.

Kunz, M.

A. Brahm, M. Kunz, S. Riehemann, G. Notni, A. Tünnermann, “Volumetric spectral analysis of materials using terahertz-tomography techniques,” Appl. Phys. B 100(1), 151–158 (2010).
[CrossRef]

Künzel, H.

Limpert, J.

B. Pradarutti, G. Matthäus, C. Brückner, J. Limpert, S. Riehemann, G. Notni, S. Nolte, A. Tünnermann, “Electrooptical sampling of ultrashort THz pulses by fs-laser pulses at 1060 nm,” Appl. Phys. B 85(1), 59–62 (2006).
[CrossRef]

G. Matthäus, T. Schreiber, J. Limpert, S. Nolte, G. Torosyan, R. Beigang, S. Riehemann, G. Notni, A. Tünnermann, “Surface-emitted THz generation using a compact ultrashort pulse fiber amplifier at 1060 nm,” Opt. Commun. 261(1), 114–117 (2006).
[CrossRef]

Matthäus, G.

B. Pradarutti, R. Müller, W. Freese, G. Matthäus, S. Riehemann, G. Notni, S. Nolte, A. Tünnermann, “Terahertz line detection by a microlens array coupled photoconductive antenna array,” Opt. Express 16(22), 18443–18450 (2008).
[CrossRef] [PubMed]

B. Pradarutti, G. Matthäus, S. Riehemann, G. Notni, S. Nolte, A. Tünnermann, “Advanced analysis concepts for terahertz time domain imaging,” Opt. Commun. 279(2), 248–254 (2007).
[CrossRef]

G. Matthäus, T. Schreiber, J. Limpert, S. Nolte, G. Torosyan, R. Beigang, S. Riehemann, G. Notni, A. Tünnermann, “Surface-emitted THz generation using a compact ultrashort pulse fiber amplifier at 1060 nm,” Opt. Commun. 261(1), 114–117 (2006).
[CrossRef]

B. Pradarutti, G. Matthäus, C. Brückner, J. Limpert, S. Riehemann, G. Notni, S. Nolte, A. Tünnermann, “Electrooptical sampling of ultrashort THz pulses by fs-laser pulses at 1060 nm,” Appl. Phys. B 85(1), 59–62 (2006).
[CrossRef]

Mittleman, D. M.

D. M. Mittleman, M. Gupta, R. Neelamani, R. G. Baraniuk, J. V. Rudd, M. Koch, “Recent advances in terahertz imaging,” Appl. Phys. B 68(6), 1085–1094 (1999).
[CrossRef]

D. M. Mittleman, R. H. Jacobsen, M. C. Nuss, “T-ray imaging,” IEEE J. Sel. Top. Quantum Electron. 2(3), 679–692 (1996).
[CrossRef]

Müller, R.

Neelamani, R.

D. M. Mittleman, M. Gupta, R. Neelamani, R. G. Baraniuk, J. V. Rudd, M. Koch, “Recent advances in terahertz imaging,” Appl. Phys. B 68(6), 1085–1094 (1999).
[CrossRef]

Nolte, S.

B. Pradarutti, R. Müller, W. Freese, G. Matthäus, S. Riehemann, G. Notni, S. Nolte, A. Tünnermann, “Terahertz line detection by a microlens array coupled photoconductive antenna array,” Opt. Express 16(22), 18443–18450 (2008).
[CrossRef] [PubMed]

B. Pradarutti, G. Matthäus, S. Riehemann, G. Notni, S. Nolte, A. Tünnermann, “Advanced analysis concepts for terahertz time domain imaging,” Opt. Commun. 279(2), 248–254 (2007).
[CrossRef]

B. Pradarutti, G. Matthäus, C. Brückner, J. Limpert, S. Riehemann, G. Notni, S. Nolte, A. Tünnermann, “Electrooptical sampling of ultrashort THz pulses by fs-laser pulses at 1060 nm,” Appl. Phys. B 85(1), 59–62 (2006).
[CrossRef]

G. Matthäus, T. Schreiber, J. Limpert, S. Nolte, G. Torosyan, R. Beigang, S. Riehemann, G. Notni, A. Tünnermann, “Surface-emitted THz generation using a compact ultrashort pulse fiber amplifier at 1060 nm,” Opt. Commun. 261(1), 114–117 (2006).
[CrossRef]

Notni, G.

C. Brückner, G. Notni, A. Tünnermann, “Optimal arrangement of 90° off-axis parabolic mirrors,” Opt. Int. J. Light Electron. Opt. 121(1), 113–119 (2010).
[CrossRef]

A. Brahm, M. Kunz, S. Riehemann, G. Notni, A. Tünnermann, “Volumetric spectral analysis of materials using terahertz-tomography techniques,” Appl. Phys. B 100(1), 151–158 (2010).
[CrossRef]

B. Pradarutti, R. Müller, W. Freese, G. Matthäus, S. Riehemann, G. Notni, S. Nolte, A. Tünnermann, “Terahertz line detection by a microlens array coupled photoconductive antenna array,” Opt. Express 16(22), 18443–18450 (2008).
[CrossRef] [PubMed]

C. Brückner, B. Pradarutti, R. Müller, S. Riehemann, G. Notni, A. Tünnermann, “Design and evaluation of a THz time domain imaging system using standard optical design software,” Appl. Opt. 47(27), 4994–5006 (2008).
[CrossRef] [PubMed]

B. Pradarutti, G. Matthäus, S. Riehemann, G. Notni, S. Nolte, A. Tünnermann, “Advanced analysis concepts for terahertz time domain imaging,” Opt. Commun. 279(2), 248–254 (2007).
[CrossRef]

G. Matthäus, T. Schreiber, J. Limpert, S. Nolte, G. Torosyan, R. Beigang, S. Riehemann, G. Notni, A. Tünnermann, “Surface-emitted THz generation using a compact ultrashort pulse fiber amplifier at 1060 nm,” Opt. Commun. 261(1), 114–117 (2006).
[CrossRef]

B. Pradarutti, G. Matthäus, C. Brückner, J. Limpert, S. Riehemann, G. Notni, S. Nolte, A. Tünnermann, “Electrooptical sampling of ultrashort THz pulses by fs-laser pulses at 1060 nm,” Appl. Phys. B 85(1), 59–62 (2006).
[CrossRef]

Nuss, M. C.

D. M. Mittleman, R. H. Jacobsen, M. C. Nuss, “T-ray imaging,” IEEE J. Sel. Top. Quantum Electron. 2(3), 679–692 (1996).
[CrossRef]

Pepper, M.

M. Haaser, Y. Karrout, C. Velghe, Y. Cuppok, K. C. Gordon, M. Pepper, J. Siepmann, T. Rades, P. F. Taday, C. J. Strachan, “Application of terahertz pulsed imaging to analyse film coating characteristics of sustained-release coated pellets,” Int. J. Pharm. 457(2), 521–526 (2013).
[CrossRef] [PubMed]

Peters, O.

Pradarutti, B.

C. Brückner, B. Pradarutti, R. Müller, S. Riehemann, G. Notni, A. Tünnermann, “Design and evaluation of a THz time domain imaging system using standard optical design software,” Appl. Opt. 47(27), 4994–5006 (2008).
[CrossRef] [PubMed]

B. Pradarutti, R. Müller, W. Freese, G. Matthäus, S. Riehemann, G. Notni, S. Nolte, A. Tünnermann, “Terahertz line detection by a microlens array coupled photoconductive antenna array,” Opt. Express 16(22), 18443–18450 (2008).
[CrossRef] [PubMed]

B. Pradarutti, G. Matthäus, S. Riehemann, G. Notni, S. Nolte, A. Tünnermann, “Advanced analysis concepts for terahertz time domain imaging,” Opt. Commun. 279(2), 248–254 (2007).
[CrossRef]

B. Pradarutti, G. Matthäus, C. Brückner, J. Limpert, S. Riehemann, G. Notni, S. Nolte, A. Tünnermann, “Electrooptical sampling of ultrashort THz pulses by fs-laser pulses at 1060 nm,” Appl. Phys. B 85(1), 59–62 (2006).
[CrossRef]

B. Pradarutti, C. Rau, G. Torosyan, R. Beigang, K. Kawase, “Plasmonic response in a one-dimensional periodic structure of metallic rods,” Appl. Phys. Lett. 87(20), 204105 (2005).
[CrossRef]

Rades, T.

M. Haaser, Y. Karrout, C. Velghe, Y. Cuppok, K. C. Gordon, M. Pepper, J. Siepmann, T. Rades, P. F. Taday, C. J. Strachan, “Application of terahertz pulsed imaging to analyse film coating characteristics of sustained-release coated pellets,” Int. J. Pharm. 457(2), 521–526 (2013).
[CrossRef] [PubMed]

Rau, C.

B. Pradarutti, C. Rau, G. Torosyan, R. Beigang, K. Kawase, “Plasmonic response in a one-dimensional periodic structure of metallic rods,” Appl. Phys. Lett. 87(20), 204105 (2005).
[CrossRef]

Riehemann, S.

A. Brahm, M. Kunz, S. Riehemann, G. Notni, A. Tünnermann, “Volumetric spectral analysis of materials using terahertz-tomography techniques,” Appl. Phys. B 100(1), 151–158 (2010).
[CrossRef]

B. Pradarutti, R. Müller, W. Freese, G. Matthäus, S. Riehemann, G. Notni, S. Nolte, A. Tünnermann, “Terahertz line detection by a microlens array coupled photoconductive antenna array,” Opt. Express 16(22), 18443–18450 (2008).
[CrossRef] [PubMed]

C. Brückner, B. Pradarutti, R. Müller, S. Riehemann, G. Notni, A. Tünnermann, “Design and evaluation of a THz time domain imaging system using standard optical design software,” Appl. Opt. 47(27), 4994–5006 (2008).
[CrossRef] [PubMed]

B. Pradarutti, G. Matthäus, S. Riehemann, G. Notni, S. Nolte, A. Tünnermann, “Advanced analysis concepts for terahertz time domain imaging,” Opt. Commun. 279(2), 248–254 (2007).
[CrossRef]

B. Pradarutti, G. Matthäus, C. Brückner, J. Limpert, S. Riehemann, G. Notni, S. Nolte, A. Tünnermann, “Electrooptical sampling of ultrashort THz pulses by fs-laser pulses at 1060 nm,” Appl. Phys. B 85(1), 59–62 (2006).
[CrossRef]

G. Matthäus, T. Schreiber, J. Limpert, S. Nolte, G. Torosyan, R. Beigang, S. Riehemann, G. Notni, A. Tünnermann, “Surface-emitted THz generation using a compact ultrashort pulse fiber amplifier at 1060 nm,” Opt. Commun. 261(1), 114–117 (2006).
[CrossRef]

Roehle, H.

R. J. B. Dietz, B. Globisch, M. Gerhard, A. Velauthapillai, D. Stanze, H. Roehle, M. Koch, T. Gobel, M. Schell, “64 µW pulsed terahertz emission from growth optimized InGaAs/InAlAs heterostructures with separated photoconductive and trapping regions,” Appl. Phys. Lett. 103(6), 061103 (2013).
[CrossRef]

R. J. B. Dietz, R. Wilk, B. Globisch, H. Roehle, D. Stanze, S. Ullrich, S. Schumann, N. Born, M. Koch, B. Sartorius, M. Schell, “Low temperature grown Be-doped InGaAs/InAlAs photoconductive antennas excited at 1030 nm,” J. Infrared Millimeter Waves 34(3–4), 231–237 (2013).
[CrossRef]

H. Roehle, R. J. B. Dietz, H. J. Hensel, J. Böttcher, H. Künzel, D. Stanze, M. Schell, B. Sartorius, “Next generation 1.5 microm terahertz antennas: mesa-structuring of InGaAs/InAlAs photoconductive layers,” Opt. Express 18(3), 2296–2301 (2010).
[CrossRef] [PubMed]

B. Sartorius, H. Roehle, H. Künzel, J. Böttcher, M. Schlak, D. Stanze, H. Venghaus, M. Schell, “All-fiber terahertz time-domain spectrometer operating at 1.5 microm telecom wavelengths,” Opt. Express 16(13), 9565–9570 (2008).
[CrossRef] [PubMed]

Rudd, J. V.

D. M. Mittleman, M. Gupta, R. Neelamani, R. G. Baraniuk, J. V. Rudd, M. Koch, “Recent advances in terahertz imaging,” Appl. Phys. B 68(6), 1085–1094 (1999).
[CrossRef]

Sakai, K.

M. Herrmann, M. Tani, K. Sakai, M. Watanabe, “Towards multi-channel time-domain terahertz imaging with photoconductive antennas,” in International Topical Meeting on Microwave Photonics (2002).
[CrossRef]

Salhi, M.

Sartorius, B.

Schell, M.

R. J. B. Dietz, R. Wilk, B. Globisch, H. Roehle, D. Stanze, S. Ullrich, S. Schumann, N. Born, M. Koch, B. Sartorius, M. Schell, “Low temperature grown Be-doped InGaAs/InAlAs photoconductive antennas excited at 1030 nm,” J. Infrared Millimeter Waves 34(3–4), 231–237 (2013).
[CrossRef]

R. J. B. Dietz, B. Globisch, M. Gerhard, A. Velauthapillai, D. Stanze, H. Roehle, M. Koch, T. Gobel, M. Schell, “64 µW pulsed terahertz emission from growth optimized InGaAs/InAlAs heterostructures with separated photoconductive and trapping regions,” Appl. Phys. Lett. 103(6), 061103 (2013).
[CrossRef]

R. J. B. Dietz, M. Gerhard, D. Stanze, M. Koch, B. Sartorius, M. Schell, “THz generation at 1.55 µm excitation: six-fold increase in THz conversion efficiency by separated photoconductive and trapping regions,” Opt. Express 19(27), 25911–25917 (2011).
[CrossRef] [PubMed]

H. Roehle, R. J. B. Dietz, H. J. Hensel, J. Böttcher, H. Künzel, D. Stanze, M. Schell, B. Sartorius, “Next generation 1.5 microm terahertz antennas: mesa-structuring of InGaAs/InAlAs photoconductive layers,” Opt. Express 18(3), 2296–2301 (2010).
[CrossRef] [PubMed]

B. Sartorius, H. Roehle, H. Künzel, J. Böttcher, M. Schlak, D. Stanze, H. Venghaus, M. Schell, “All-fiber terahertz time-domain spectrometer operating at 1.5 microm telecom wavelengths,” Opt. Express 16(13), 9565–9570 (2008).
[CrossRef] [PubMed]

Scheller, M.

Schlak, M.

Schreiber, T.

G. Matthäus, T. Schreiber, J. Limpert, S. Nolte, G. Torosyan, R. Beigang, S. Riehemann, G. Notni, A. Tünnermann, “Surface-emitted THz generation using a compact ultrashort pulse fiber amplifier at 1060 nm,” Opt. Commun. 261(1), 114–117 (2006).
[CrossRef]

Schumann, S.

R. J. B. Dietz, R. Wilk, B. Globisch, H. Roehle, D. Stanze, S. Ullrich, S. Schumann, N. Born, M. Koch, B. Sartorius, M. Schell, “Low temperature grown Be-doped InGaAs/InAlAs photoconductive antennas excited at 1030 nm,” J. Infrared Millimeter Waves 34(3–4), 231–237 (2013).
[CrossRef]

Siepmann, J.

M. Haaser, Y. Karrout, C. Velghe, Y. Cuppok, K. C. Gordon, M. Pepper, J. Siepmann, T. Rades, P. F. Taday, C. J. Strachan, “Application of terahertz pulsed imaging to analyse film coating characteristics of sustained-release coated pellets,” Int. J. Pharm. 457(2), 521–526 (2013).
[CrossRef] [PubMed]

Stanze, D.

R. J. B. Dietz, R. Wilk, B. Globisch, H. Roehle, D. Stanze, S. Ullrich, S. Schumann, N. Born, M. Koch, B. Sartorius, M. Schell, “Low temperature grown Be-doped InGaAs/InAlAs photoconductive antennas excited at 1030 nm,” J. Infrared Millimeter Waves 34(3–4), 231–237 (2013).
[CrossRef]

R. J. B. Dietz, B. Globisch, M. Gerhard, A. Velauthapillai, D. Stanze, H. Roehle, M. Koch, T. Gobel, M. Schell, “64 µW pulsed terahertz emission from growth optimized InGaAs/InAlAs heterostructures with separated photoconductive and trapping regions,” Appl. Phys. Lett. 103(6), 061103 (2013).
[CrossRef]

R. J. B. Dietz, M. Gerhard, D. Stanze, M. Koch, B. Sartorius, M. Schell, “THz generation at 1.55 µm excitation: six-fold increase in THz conversion efficiency by separated photoconductive and trapping regions,” Opt. Express 19(27), 25911–25917 (2011).
[CrossRef] [PubMed]

H. Roehle, R. J. B. Dietz, H. J. Hensel, J. Böttcher, H. Künzel, D. Stanze, M. Schell, B. Sartorius, “Next generation 1.5 microm terahertz antennas: mesa-structuring of InGaAs/InAlAs photoconductive layers,” Opt. Express 18(3), 2296–2301 (2010).
[CrossRef] [PubMed]

B. Sartorius, H. Roehle, H. Künzel, J. Böttcher, M. Schlak, D. Stanze, H. Venghaus, M. Schell, “All-fiber terahertz time-domain spectrometer operating at 1.5 microm telecom wavelengths,” Opt. Express 16(13), 9565–9570 (2008).
[CrossRef] [PubMed]

Strachan, C. J.

M. Haaser, Y. Karrout, C. Velghe, Y. Cuppok, K. C. Gordon, M. Pepper, J. Siepmann, T. Rades, P. F. Taday, C. J. Strachan, “Application of terahertz pulsed imaging to analyse film coating characteristics of sustained-release coated pellets,” Int. J. Pharm. 457(2), 521–526 (2013).
[CrossRef] [PubMed]

Taday, P. F.

M. Haaser, Y. Karrout, C. Velghe, Y. Cuppok, K. C. Gordon, M. Pepper, J. Siepmann, T. Rades, P. F. Taday, C. J. Strachan, “Application of terahertz pulsed imaging to analyse film coating characteristics of sustained-release coated pellets,” Int. J. Pharm. 457(2), 521–526 (2013).
[CrossRef] [PubMed]

Tani, M.

M. Herrmann, M. Tani, K. Sakai, M. Watanabe, “Towards multi-channel time-domain terahertz imaging with photoconductive antennas,” in International Topical Meeting on Microwave Photonics (2002).
[CrossRef]

Tonouchi, M.

M. Tonouchi, “Cutting-edge terahertz technology,” Nat. Photonics 1(2), 97–105 (2007).
[CrossRef]

Torosyan, G.

G. Matthäus, T. Schreiber, J. Limpert, S. Nolte, G. Torosyan, R. Beigang, S. Riehemann, G. Notni, A. Tünnermann, “Surface-emitted THz generation using a compact ultrashort pulse fiber amplifier at 1060 nm,” Opt. Commun. 261(1), 114–117 (2006).
[CrossRef]

B. Pradarutti, C. Rau, G. Torosyan, R. Beigang, K. Kawase, “Plasmonic response in a one-dimensional periodic structure of metallic rods,” Appl. Phys. Lett. 87(20), 204105 (2005).
[CrossRef]

Tünnermann, A.

C. Brückner, G. Notni, A. Tünnermann, “Optimal arrangement of 90° off-axis parabolic mirrors,” Opt. Int. J. Light Electron. Opt. 121(1), 113–119 (2010).
[CrossRef]

A. Brahm, M. Kunz, S. Riehemann, G. Notni, A. Tünnermann, “Volumetric spectral analysis of materials using terahertz-tomography techniques,” Appl. Phys. B 100(1), 151–158 (2010).
[CrossRef]

B. Pradarutti, R. Müller, W. Freese, G. Matthäus, S. Riehemann, G. Notni, S. Nolte, A. Tünnermann, “Terahertz line detection by a microlens array coupled photoconductive antenna array,” Opt. Express 16(22), 18443–18450 (2008).
[CrossRef] [PubMed]

C. Brückner, B. Pradarutti, R. Müller, S. Riehemann, G. Notni, A. Tünnermann, “Design and evaluation of a THz time domain imaging system using standard optical design software,” Appl. Opt. 47(27), 4994–5006 (2008).
[CrossRef] [PubMed]

B. Pradarutti, G. Matthäus, S. Riehemann, G. Notni, S. Nolte, A. Tünnermann, “Advanced analysis concepts for terahertz time domain imaging,” Opt. Commun. 279(2), 248–254 (2007).
[CrossRef]

G. Matthäus, T. Schreiber, J. Limpert, S. Nolte, G. Torosyan, R. Beigang, S. Riehemann, G. Notni, A. Tünnermann, “Surface-emitted THz generation using a compact ultrashort pulse fiber amplifier at 1060 nm,” Opt. Commun. 261(1), 114–117 (2006).
[CrossRef]

B. Pradarutti, G. Matthäus, C. Brückner, J. Limpert, S. Riehemann, G. Notni, S. Nolte, A. Tünnermann, “Electrooptical sampling of ultrashort THz pulses by fs-laser pulses at 1060 nm,” Appl. Phys. B 85(1), 59–62 (2006).
[CrossRef]

Ullrich, S.

R. J. B. Dietz, R. Wilk, B. Globisch, H. Roehle, D. Stanze, S. Ullrich, S. Schumann, N. Born, M. Koch, B. Sartorius, M. Schell, “Low temperature grown Be-doped InGaAs/InAlAs photoconductive antennas excited at 1030 nm,” J. Infrared Millimeter Waves 34(3–4), 231–237 (2013).
[CrossRef]

Velauthapillai, A.

R. J. B. Dietz, B. Globisch, M. Gerhard, A. Velauthapillai, D. Stanze, H. Roehle, M. Koch, T. Gobel, M. Schell, “64 µW pulsed terahertz emission from growth optimized InGaAs/InAlAs heterostructures with separated photoconductive and trapping regions,” Appl. Phys. Lett. 103(6), 061103 (2013).
[CrossRef]

Velghe, C.

M. Haaser, Y. Karrout, C. Velghe, Y. Cuppok, K. C. Gordon, M. Pepper, J. Siepmann, T. Rades, P. F. Taday, C. J. Strachan, “Application of terahertz pulsed imaging to analyse film coating characteristics of sustained-release coated pellets,” Int. J. Pharm. 457(2), 521–526 (2013).
[CrossRef] [PubMed]

Venghaus, H.

Vieweg, N.

Watanabe, M.

M. Herrmann, M. Tani, K. Sakai, M. Watanabe, “Towards multi-channel time-domain terahertz imaging with photoconductive antennas,” in International Topical Meeting on Microwave Photonics (2002).
[CrossRef]

Wietzke, S.

Wilk, R.

R. J. B. Dietz, R. Wilk, B. Globisch, H. Roehle, D. Stanze, S. Ullrich, S. Schumann, N. Born, M. Koch, B. Sartorius, M. Schell, “Low temperature grown Be-doped InGaAs/InAlAs photoconductive antennas excited at 1030 nm,” J. Infrared Millimeter Waves 34(3–4), 231–237 (2013).
[CrossRef]

Zhang, J.

Zhang, W.

Zhang, X. C.

X. C. Zhang, “Terahertz wave imaging: horizons and hurdles,” Phys. Med. Biol. 47(21), 3667–3677 (2002).
[CrossRef] [PubMed]

Appl. Opt. (3)

Appl. Phys. B (3)

B. Pradarutti, G. Matthäus, C. Brückner, J. Limpert, S. Riehemann, G. Notni, S. Nolte, A. Tünnermann, “Electrooptical sampling of ultrashort THz pulses by fs-laser pulses at 1060 nm,” Appl. Phys. B 85(1), 59–62 (2006).
[CrossRef]

D. M. Mittleman, M. Gupta, R. Neelamani, R. G. Baraniuk, J. V. Rudd, M. Koch, “Recent advances in terahertz imaging,” Appl. Phys. B 68(6), 1085–1094 (1999).
[CrossRef]

A. Brahm, M. Kunz, S. Riehemann, G. Notni, A. Tünnermann, “Volumetric spectral analysis of materials using terahertz-tomography techniques,” Appl. Phys. B 100(1), 151–158 (2010).
[CrossRef]

Appl. Phys. Lett. (2)

R. J. B. Dietz, B. Globisch, M. Gerhard, A. Velauthapillai, D. Stanze, H. Roehle, M. Koch, T. Gobel, M. Schell, “64 µW pulsed terahertz emission from growth optimized InGaAs/InAlAs heterostructures with separated photoconductive and trapping regions,” Appl. Phys. Lett. 103(6), 061103 (2013).
[CrossRef]

B. Pradarutti, C. Rau, G. Torosyan, R. Beigang, K. Kawase, “Plasmonic response in a one-dimensional periodic structure of metallic rods,” Appl. Phys. Lett. 87(20), 204105 (2005).
[CrossRef]

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

D. M. Mittleman, R. H. Jacobsen, M. C. Nuss, “T-ray imaging,” IEEE J. Sel. Top. Quantum Electron. 2(3), 679–692 (1996).
[CrossRef]

Int. J. Pharm. (1)

M. Haaser, Y. Karrout, C. Velghe, Y. Cuppok, K. C. Gordon, M. Pepper, J. Siepmann, T. Rades, P. F. Taday, C. J. Strachan, “Application of terahertz pulsed imaging to analyse film coating characteristics of sustained-release coated pellets,” Int. J. Pharm. 457(2), 521–526 (2013).
[CrossRef] [PubMed]

J. Infrared Millimeter Waves (1)

R. J. B. Dietz, R. Wilk, B. Globisch, H. Roehle, D. Stanze, S. Ullrich, S. Schumann, N. Born, M. Koch, B. Sartorius, M. Schell, “Low temperature grown Be-doped InGaAs/InAlAs photoconductive antennas excited at 1030 nm,” J. Infrared Millimeter Waves 34(3–4), 231–237 (2013).
[CrossRef]

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

Nat. Photonics (1)

M. Tonouchi, “Cutting-edge terahertz technology,” Nat. Photonics 1(2), 97–105 (2007).
[CrossRef]

Opt. Commun. (2)

G. Matthäus, T. Schreiber, J. Limpert, S. Nolte, G. Torosyan, R. Beigang, S. Riehemann, G. Notni, A. Tünnermann, “Surface-emitted THz generation using a compact ultrashort pulse fiber amplifier at 1060 nm,” Opt. Commun. 261(1), 114–117 (2006).
[CrossRef]

B. Pradarutti, G. Matthäus, S. Riehemann, G. Notni, S. Nolte, A. Tünnermann, “Advanced analysis concepts for terahertz time domain imaging,” Opt. Commun. 279(2), 248–254 (2007).
[CrossRef]

Opt. Express (4)

Opt. Int. J. Light Electron. Opt. (1)

C. Brückner, G. Notni, A. Tünnermann, “Optimal arrangement of 90° off-axis parabolic mirrors,” Opt. Int. J. Light Electron. Opt. 121(1), 113–119 (2010).
[CrossRef]

Phys. Med. Biol. (1)

X. C. Zhang, “Terahertz wave imaging: horizons and hurdles,” Phys. Med. Biol. 47(21), 3667–3677 (2002).
[CrossRef] [PubMed]

Other (9)

M. Herrmann, M. Tani, K. Sakai, M. Watanabe, “Towards multi-channel time-domain terahertz imaging with photoconductive antennas,” in International Topical Meeting on Microwave Photonics (2002).
[CrossRef]

S. Wohnsiedler, M. Kolano, J. Klier, M. Herrmann, J. Jonuscheit, R. Beigang, E. Peytavit, and J. - Lampin, “Multichannel THz imaging using arrays of photoconductive antennas,” in 35th International Conference on Infrared Millimeter and Terahertz Waves (IRMMW-THz) (2010).

A. Brahm, S. Scharnowski, B. Pradarutti, G. Matthaus, C. Brückner, S. Riehemann, S. Nolte, G. Notni, and A. Tünnermann, “128 channel THz ultrashort pulse system, ” in European Quantum Electronics Conference in Lasers and Electro-Optics (2009).

C. Gerth, R. J. B. Dietz, T. Göbel, M. Schell, A. Brahm, G. Notni, and A. Tünnermann, “Highly efficient terahertz photoconductive switch at 1060nm excitation wavelength,” in 38th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) (2013).
[CrossRef]

R. Wilk, S. Kocur, T. Hochrein, M. Mei, and R. Holzwarth, “Imaging with THz OSCAT spectrometer,” in 36th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz) (2011).
[CrossRef]

C. Brückner, B. Pradarutti, S. Riehemann, G. Notni, and A. Tünnermann, “Design of a THz optics for a 128 channel THz imaging system,” in 34th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) (2009).
[CrossRef]

A. Brahm, M. Müller, C. Gerth, and G. Notni, “Development of a multichannel lock-in amplifier for Terahertz time-domain systems,” in 37th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) (2012).
[CrossRef]

J. Magnes, D. Odera, J. Hartke, M. Fountain, L. Florence, and V. Davis, “Quantitative and qualitative study of gaussian beam visualization techniques,” arXiv:physics/0605102 v1 (2006).

B. Dörband, H. Müller, and H. Gross, Handbook of Optical Systems, Metrology of Optical Components and Systems, 5th ed. (John Wiley, 2012).

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Figures (14)

Fig. 1
Fig. 1

Experimental setup of the multichannel THz TDS system: (1) Beam splitter (90:10), (2) Optical delay stage, (3) Aspheric lens, (4) THz emitter, (5) THz optics, (6) Telescope, (7) Cylinder lens, (8) THz detector.

Fig. 2
Fig. 2

Setup of the THz optics: SL Em – THz emitter with silicon lens, PM – parabolic mirror, CM – cylinder mirror, LF – THz line focus, ZL – Zeonex® lenses, CL Det – THz detector and silicon cylinder lens.

Fig. 3
Fig. 3

Photoconductive detector array 15 dipole antennas: metal electrode (green color).

Fig. 4
Fig. 4

Beam profile of the THz line focus: (a) Values of the maximum THz pulse amplitude; (b) Time delay of the THz pulses.

Fig. 5
Fig. 5

THz measurement with 15 detector channels: The pulses are shifted by 2 ps for a better overview.

Fig. 6
Fig. 6

Extracted values of the THz pulses: (a) Maximum THz amplitude values, (b) Positions of the maximum THz amplitudes.

Fig. 7
Fig. 7

THz signals of channel 8 and a one channel TDS system (TDS reference): (a) The THz pulse of channel 8 is shown 500 times larger for a better comparison to the TDS reference, (b) Spectra of channel 8 and the one channel TDS system.

Fig. 8
Fig. 8

Knife edge measurement in the line focus of the THz optics: (a) Maximum pulse amplitudes – sample shifted in vertical direction (y), (b) maximum pulse amplitudes - sample shifted in horizontal direction (x).

Fig. 9
Fig. 9

Measured beam profiles (dotted) of channel 8 and fit functions of a Gaussian beam waist (line).

Fig. 10
Fig. 10

Resolution measurement: (a) Metallic sample with different gap sizes from 5 mm to 100 µm; (b) Measurement results of channel 8 and 13 for a horizontal (x) and vertical (y) measurement with a step width of 0.1 mm.

Fig. 11
Fig. 11

Metallic Siemens star.

Fig. 12
Fig. 12

THz imaging of a metallic Siemens star: (a) THz absorption image with a scan resolution of 1 mm in x (horizontal) and y (vertical) direction; (b) THz absorption image with a scan resolution of 250 µm in x and y direction.

Fig. 13
Fig. 13

Picture of a pump wheel made of plastic.

Fig. 14
Fig. 14

Pump wheel made of plastic: (a) Extraction of the maximum THz pulse amplitude, (b) Extraction of the time information of the maximum THz pulse amplitude.

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