Abstract

We have developed a rapid scanning terahertz (THz) spectrometer based on a synchronized two-fiber-laser system. When the system is set to the asynchronous optical sampling mode, THz spectra extending to 3THz can be acquired within 1μs at a signal-to-noise ratio of the electric field of better than 20. Signal averaging results in a dynamic range of more than 60dB, and frequency components of more than 4THz can be detected. When the lasers are set to the same repetition rate, electronically controlled optical sampling at a rate of 2.5kHz is demonstrated, making the system versatile for different spectroscopic applications. Finally, we compare the THz emission spectra of a photoconductive switch that is pumped at 780nm and a nonlinear DAST crystal excited at 1550nm. We find that the spectral range of the spectrometer is significantly enhanced at higher frequencies, while the dynamic range remains constant.

© 2010 Optical Society of America

Full Article  |  PDF Article

References

  • View by:
  • |
  • |
  • |

  1. M. Tonouchi, Nat. Photon. 1, 97 (2007).
    [CrossRef]
  2. F. Ellrich, D. Molter, T. Weinland, M. Theuer, J. Jonuscheit, and R. Beigang, in IEEE Proceedings of the 33rd International Conference on Infrared, Millimeter, and Terahertz Waves (IEEE, 2008).
    [PubMed]
  3. P. A. Elzinga, F. E. Lytle, Y. Jian, G. B. King, and N. M. Laurendeau, Appl. Opt. 26, 4303 (1987).
    [CrossRef] [PubMed]
  4. A. Bartels, R. Cerna, C. Kistner, A. Thoma, F. Hudert, C. Janke, and T. Dekorsy, Rev. Sci. Instrum. 78, 035107 (2007).
    [CrossRef] [PubMed]
  5. F. Tauser, C. Rausch, J. H. Posthumus, and F. Lison, Proc. SPIE 6881, 68810O (2008).
    [CrossRef]
  6. T. Yasui, E. Saneyoshi, and T. Araki, Appl. Phys. Lett. 87, 061101 (2005).
    [CrossRef]
  7. A. Dreyhaupt, S. Winnerl, M. Helm, and T. Dekorsy, Opt. Lett. 31, 1546 (2006).
    [CrossRef] [PubMed]
  8. G. Klatt, R. Gebs, C. Janke, T. Dekorsy, and A. Bartels, Opt. Express 17, 22847 (2009).
    [CrossRef]
  9. T. Yasui, M. Nose, A. Ihara, K. Kawamoto, S. Yokoyama, H. Inaba, K. Minoshima, and T. Araki, Opt. Lett. 35, 1689 (2010).
    [CrossRef] [PubMed]
  10. B. Pradarutti, G. Matthäus, S. Riehemann, G. Notni, S. Nolte, and A. Tünnermann, Opt. Commun. 281, 5031(2008).
    [CrossRef]
  11. M. Nagaia, K. Tanaka, H. Ohtake, T. Bessho, T. Sugiura, T. Hirosumi, and M. Yoshida, Appl. Phys. Lett. 85, 3974 (2004).
    [CrossRef]
  12. A. Schneider, M. Stillhart, and P. Günter, Opt. Express 14, 5376 (2006).
    [CrossRef] [PubMed]

2010 (1)

2009 (1)

2008 (2)

F. Tauser, C. Rausch, J. H. Posthumus, and F. Lison, Proc. SPIE 6881, 68810O (2008).
[CrossRef]

B. Pradarutti, G. Matthäus, S. Riehemann, G. Notni, S. Nolte, and A. Tünnermann, Opt. Commun. 281, 5031(2008).
[CrossRef]

2007 (2)

A. Bartels, R. Cerna, C. Kistner, A. Thoma, F. Hudert, C. Janke, and T. Dekorsy, Rev. Sci. Instrum. 78, 035107 (2007).
[CrossRef] [PubMed]

M. Tonouchi, Nat. Photon. 1, 97 (2007).
[CrossRef]

2006 (2)

2005 (1)

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

2004 (1)

M. Nagaia, K. Tanaka, H. Ohtake, T. Bessho, T. Sugiura, T. Hirosumi, and M. Yoshida, Appl. Phys. Lett. 85, 3974 (2004).
[CrossRef]

1987 (1)

Araki, T.

Bartels, A.

G. Klatt, R. Gebs, C. Janke, T. Dekorsy, and A. Bartels, Opt. Express 17, 22847 (2009).
[CrossRef]

A. Bartels, R. Cerna, C. Kistner, A. Thoma, F. Hudert, C. Janke, and T. Dekorsy, Rev. Sci. Instrum. 78, 035107 (2007).
[CrossRef] [PubMed]

Beigang, R.

F. Ellrich, D. Molter, T. Weinland, M. Theuer, J. Jonuscheit, and R. Beigang, in IEEE Proceedings of the 33rd International Conference on Infrared, Millimeter, and Terahertz Waves (IEEE, 2008).
[PubMed]

Bessho, T.

M. Nagaia, K. Tanaka, H. Ohtake, T. Bessho, T. Sugiura, T. Hirosumi, and M. Yoshida, Appl. Phys. Lett. 85, 3974 (2004).
[CrossRef]

Cerna, R.

A. Bartels, R. Cerna, C. Kistner, A. Thoma, F. Hudert, C. Janke, and T. Dekorsy, Rev. Sci. Instrum. 78, 035107 (2007).
[CrossRef] [PubMed]

Dekorsy, T.

Dreyhaupt, A.

Ellrich, F.

F. Ellrich, D. Molter, T. Weinland, M. Theuer, J. Jonuscheit, and R. Beigang, in IEEE Proceedings of the 33rd International Conference on Infrared, Millimeter, and Terahertz Waves (IEEE, 2008).
[PubMed]

Elzinga, P. A.

Gebs, R.

Günter, P.

Helm, M.

Hirosumi, T.

M. Nagaia, K. Tanaka, H. Ohtake, T. Bessho, T. Sugiura, T. Hirosumi, and M. Yoshida, Appl. Phys. Lett. 85, 3974 (2004).
[CrossRef]

Hudert, F.

A. Bartels, R. Cerna, C. Kistner, A. Thoma, F. Hudert, C. Janke, and T. Dekorsy, Rev. Sci. Instrum. 78, 035107 (2007).
[CrossRef] [PubMed]

Ihara, A.

Inaba, H.

Janke, C.

G. Klatt, R. Gebs, C. Janke, T. Dekorsy, and A. Bartels, Opt. Express 17, 22847 (2009).
[CrossRef]

A. Bartels, R. Cerna, C. Kistner, A. Thoma, F. Hudert, C. Janke, and T. Dekorsy, Rev. Sci. Instrum. 78, 035107 (2007).
[CrossRef] [PubMed]

Jian, Y.

Jonuscheit, J.

F. Ellrich, D. Molter, T. Weinland, M. Theuer, J. Jonuscheit, and R. Beigang, in IEEE Proceedings of the 33rd International Conference on Infrared, Millimeter, and Terahertz Waves (IEEE, 2008).
[PubMed]

Kawamoto, K.

King, G. B.

Kistner, C.

A. Bartels, R. Cerna, C. Kistner, A. Thoma, F. Hudert, C. Janke, and T. Dekorsy, Rev. Sci. Instrum. 78, 035107 (2007).
[CrossRef] [PubMed]

Klatt, G.

Laurendeau, N. M.

Lison, F.

F. Tauser, C. Rausch, J. H. Posthumus, and F. Lison, Proc. SPIE 6881, 68810O (2008).
[CrossRef]

Lytle, F. E.

Matthäus, G.

B. Pradarutti, G. Matthäus, S. Riehemann, G. Notni, S. Nolte, and A. Tünnermann, Opt. Commun. 281, 5031(2008).
[CrossRef]

Minoshima, K.

Molter, D.

F. Ellrich, D. Molter, T. Weinland, M. Theuer, J. Jonuscheit, and R. Beigang, in IEEE Proceedings of the 33rd International Conference on Infrared, Millimeter, and Terahertz Waves (IEEE, 2008).
[PubMed]

Nagaia, M.

M. Nagaia, K. Tanaka, H. Ohtake, T. Bessho, T. Sugiura, T. Hirosumi, and M. Yoshida, Appl. Phys. Lett. 85, 3974 (2004).
[CrossRef]

Nolte, S.

B. Pradarutti, G. Matthäus, S. Riehemann, G. Notni, S. Nolte, and A. Tünnermann, Opt. Commun. 281, 5031(2008).
[CrossRef]

Nose, M.

Notni, G.

B. Pradarutti, G. Matthäus, S. Riehemann, G. Notni, S. Nolte, and A. Tünnermann, Opt. Commun. 281, 5031(2008).
[CrossRef]

Ohtake, H.

M. Nagaia, K. Tanaka, H. Ohtake, T. Bessho, T. Sugiura, T. Hirosumi, and M. Yoshida, Appl. Phys. Lett. 85, 3974 (2004).
[CrossRef]

Posthumus, J. H.

F. Tauser, C. Rausch, J. H. Posthumus, and F. Lison, Proc. SPIE 6881, 68810O (2008).
[CrossRef]

Pradarutti, B.

B. Pradarutti, G. Matthäus, S. Riehemann, G. Notni, S. Nolte, and A. Tünnermann, Opt. Commun. 281, 5031(2008).
[CrossRef]

Rausch, C.

F. Tauser, C. Rausch, J. H. Posthumus, and F. Lison, Proc. SPIE 6881, 68810O (2008).
[CrossRef]

Riehemann, S.

B. Pradarutti, G. Matthäus, S. Riehemann, G. Notni, S. Nolte, and A. Tünnermann, Opt. Commun. 281, 5031(2008).
[CrossRef]

Saneyoshi, E.

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

Schneider, A.

Stillhart, M.

Sugiura, T.

M. Nagaia, K. Tanaka, H. Ohtake, T. Bessho, T. Sugiura, T. Hirosumi, and M. Yoshida, Appl. Phys. Lett. 85, 3974 (2004).
[CrossRef]

Tanaka, K.

M. Nagaia, K. Tanaka, H. Ohtake, T. Bessho, T. Sugiura, T. Hirosumi, and M. Yoshida, Appl. Phys. Lett. 85, 3974 (2004).
[CrossRef]

Tauser, F.

F. Tauser, C. Rausch, J. H. Posthumus, and F. Lison, Proc. SPIE 6881, 68810O (2008).
[CrossRef]

Theuer, M.

F. Ellrich, D. Molter, T. Weinland, M. Theuer, J. Jonuscheit, and R. Beigang, in IEEE Proceedings of the 33rd International Conference on Infrared, Millimeter, and Terahertz Waves (IEEE, 2008).
[PubMed]

Thoma, A.

A. Bartels, R. Cerna, C. Kistner, A. Thoma, F. Hudert, C. Janke, and T. Dekorsy, Rev. Sci. Instrum. 78, 035107 (2007).
[CrossRef] [PubMed]

Tonouchi, M.

M. Tonouchi, Nat. Photon. 1, 97 (2007).
[CrossRef]

Tünnermann, A.

B. Pradarutti, G. Matthäus, S. Riehemann, G. Notni, S. Nolte, and A. Tünnermann, Opt. Commun. 281, 5031(2008).
[CrossRef]

Weinland, T.

F. Ellrich, D. Molter, T. Weinland, M. Theuer, J. Jonuscheit, and R. Beigang, in IEEE Proceedings of the 33rd International Conference on Infrared, Millimeter, and Terahertz Waves (IEEE, 2008).
[PubMed]

Winnerl, S.

Yasui, T.

Yokoyama, S.

Yoshida, M.

M. Nagaia, K. Tanaka, H. Ohtake, T. Bessho, T. Sugiura, T. Hirosumi, and M. Yoshida, Appl. Phys. Lett. 85, 3974 (2004).
[CrossRef]

Appl. Opt. (1)

Appl. Phys. Lett. (2)

M. Nagaia, K. Tanaka, H. Ohtake, T. Bessho, T. Sugiura, T. Hirosumi, and M. Yoshida, Appl. Phys. Lett. 85, 3974 (2004).
[CrossRef]

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

Nat. Photon. (1)

M. Tonouchi, Nat. Photon. 1, 97 (2007).
[CrossRef]

Opt. Commun. (1)

B. Pradarutti, G. Matthäus, S. Riehemann, G. Notni, S. Nolte, and A. Tünnermann, Opt. Commun. 281, 5031(2008).
[CrossRef]

Opt. Express (2)

Opt. Lett. (2)

Proc. SPIE (1)

F. Tauser, C. Rausch, J. H. Posthumus, and F. Lison, Proc. SPIE 6881, 68810O (2008).
[CrossRef]

Rev. Sci. Instrum. (1)

A. Bartels, R. Cerna, C. Kistner, A. Thoma, F. Hudert, C. Janke, and T. Dekorsy, Rev. Sci. Instrum. 78, 035107 (2007).
[CrossRef] [PubMed]

Other (1)

F. Ellrich, D. Molter, T. Weinland, M. Theuer, J. Jonuscheit, and R. Beigang, in IEEE Proceedings of the 33rd International Conference on Infrared, Millimeter, and Terahertz Waves (IEEE, 2008).
[PubMed]

Cited By

OSA participates in CrossRef's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.

Alert me when this article is cited.


Figures (3)

Fig. 1
Fig. 1

Layout of the THz spectrometer. The two synchronized 1550 nm fiber lasers B and A serve for THz generation and detection, respectively. When a PCA is used for THz generation, the frequency-doubled output of laser B is used for excitation. The secondary output ports of the lasers are focused onto a 1-mm-thick β - Ba B 2 O 4 crystal to generate a cross-correlation signal, providing the trigger for data acquisition. Laser A is frequency doubled in a periodically poled L i N b O 3 (PPLN) crystal to generate the 780 nm sampling pulses.

Fig. 2
Fig. 2

Amplitude spectra of the purged setup for different averaging times and the noise spectrum for 400 s . The inset shows a single scan, taken within 1 μs .

Fig. 3
Fig. 3

THz waveforms acquired in ECOPS mode with 1000 averages ( 400 ms acquisition time). The solid curves in the graph are taken from a photoconductive emitter excited with 780 nm pulses. The dashed curves were taken when 1550 nm pulses generated THz in a DAST crystal.

Metrics