Abstract

For photoconductive (PC) antennae used as terahertz (THz) detectors, traditional data processing methods should be improved because the space-charge and radiation field screening effects and the time dependence of photocarriers density have not been considered. Through developing a double-probe-pulse THz detection technique and using an equivalent-circuit model to describe PC antennae, we present a new method to restore the THz-field wave shape from the measurement data of currents between two electrodes on the antenna. This method is verified to be effective through building a special THz time-domain spectroscopy system with double probes. This work is significant for the accurate determination of pulse THz fields.

© 2013 Optical Society of America

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  1. K. J. Siebert, A. Lisauskas, T. Löffler, and H. G. Roskos, Jpn. J. Appl. Phys. Part 1 43, 1038 (2004).
    [CrossRef]
  2. G. C. Loata, T. Löffler, and H. G. Roskos, Appl. Phys. Lett. 90, 052101 (2007).
    [CrossRef]
  3. R. Yano, H. Gotoh, Y. Hirayama, and S. Miyashita, J. Appl. Phys. 96, 3635 (2004).
    [CrossRef]
  4. G. C. Loata, M. D. Thomson, T. Löffler, and H. G. Roskos, Appl. Phys. Lett. 91, 232506 (2007).
    [CrossRef]
  5. J. E. Pedersen, V. G. Lyssenko, J. M. Hvam, P. Uhd Jepsen, S. R. Keiding, C. B. Sørensen, and P. E. Lindelof, Appl. Phys. Lett. 62, 1265 (1993).
    [CrossRef]
  6. R. H. Jacobsen, K. Birkelund, T. Holst, P. Uhd Jepsen, and S. R. Keiding, J. Appl. Phys. 79, 2649 (1996).
    [CrossRef]
  7. P. Uhd Jepsen, R. H. Jacobsen, and S. R. Keiding, J. Opt. Soc. Am. B 13, 2424 (1996).
    [CrossRef]
  8. G. C. Loata, “Investigation of low-temperature- grown GaAs photoconductive antennae for continous-wave and pulsed terahertz generation,” Ph.D. thesis (Goethe-University, Frankfut am Main, 2007).
  9. N. Khiabani, Y. Huang, Y.-C. Shen, and S. J. Boyes, IEEE Trans. Antennas Propag. 61, 1538 (2013).
  10. X.-C. Zhang and J. Xu, Introduction to THz Wave Photonics (Springer Science+Business Media, 2010), Chap. 2.

2013

N. Khiabani, Y. Huang, Y.-C. Shen, and S. J. Boyes, IEEE Trans. Antennas Propag. 61, 1538 (2013).

2007

G. C. Loata, T. Löffler, and H. G. Roskos, Appl. Phys. Lett. 90, 052101 (2007).
[CrossRef]

G. C. Loata, M. D. Thomson, T. Löffler, and H. G. Roskos, Appl. Phys. Lett. 91, 232506 (2007).
[CrossRef]

2004

R. Yano, H. Gotoh, Y. Hirayama, and S. Miyashita, J. Appl. Phys. 96, 3635 (2004).
[CrossRef]

K. J. Siebert, A. Lisauskas, T. Löffler, and H. G. Roskos, Jpn. J. Appl. Phys. Part 1 43, 1038 (2004).
[CrossRef]

1996

R. H. Jacobsen, K. Birkelund, T. Holst, P. Uhd Jepsen, and S. R. Keiding, J. Appl. Phys. 79, 2649 (1996).
[CrossRef]

P. Uhd Jepsen, R. H. Jacobsen, and S. R. Keiding, J. Opt. Soc. Am. B 13, 2424 (1996).
[CrossRef]

1993

J. E. Pedersen, V. G. Lyssenko, J. M. Hvam, P. Uhd Jepsen, S. R. Keiding, C. B. Sørensen, and P. E. Lindelof, Appl. Phys. Lett. 62, 1265 (1993).
[CrossRef]

Birkelund, K.

R. H. Jacobsen, K. Birkelund, T. Holst, P. Uhd Jepsen, and S. R. Keiding, J. Appl. Phys. 79, 2649 (1996).
[CrossRef]

Boyes, S. J.

N. Khiabani, Y. Huang, Y.-C. Shen, and S. J. Boyes, IEEE Trans. Antennas Propag. 61, 1538 (2013).

Gotoh, H.

R. Yano, H. Gotoh, Y. Hirayama, and S. Miyashita, J. Appl. Phys. 96, 3635 (2004).
[CrossRef]

Hirayama, Y.

R. Yano, H. Gotoh, Y. Hirayama, and S. Miyashita, J. Appl. Phys. 96, 3635 (2004).
[CrossRef]

Holst, T.

R. H. Jacobsen, K. Birkelund, T. Holst, P. Uhd Jepsen, and S. R. Keiding, J. Appl. Phys. 79, 2649 (1996).
[CrossRef]

Huang, Y.

N. Khiabani, Y. Huang, Y.-C. Shen, and S. J. Boyes, IEEE Trans. Antennas Propag. 61, 1538 (2013).

Hvam, J. M.

J. E. Pedersen, V. G. Lyssenko, J. M. Hvam, P. Uhd Jepsen, S. R. Keiding, C. B. Sørensen, and P. E. Lindelof, Appl. Phys. Lett. 62, 1265 (1993).
[CrossRef]

Jacobsen, R. H.

R. H. Jacobsen, K. Birkelund, T. Holst, P. Uhd Jepsen, and S. R. Keiding, J. Appl. Phys. 79, 2649 (1996).
[CrossRef]

P. Uhd Jepsen, R. H. Jacobsen, and S. R. Keiding, J. Opt. Soc. Am. B 13, 2424 (1996).
[CrossRef]

Keiding, S. R.

P. Uhd Jepsen, R. H. Jacobsen, and S. R. Keiding, J. Opt. Soc. Am. B 13, 2424 (1996).
[CrossRef]

R. H. Jacobsen, K. Birkelund, T. Holst, P. Uhd Jepsen, and S. R. Keiding, J. Appl. Phys. 79, 2649 (1996).
[CrossRef]

J. E. Pedersen, V. G. Lyssenko, J. M. Hvam, P. Uhd Jepsen, S. R. Keiding, C. B. Sørensen, and P. E. Lindelof, Appl. Phys. Lett. 62, 1265 (1993).
[CrossRef]

Khiabani, N.

N. Khiabani, Y. Huang, Y.-C. Shen, and S. J. Boyes, IEEE Trans. Antennas Propag. 61, 1538 (2013).

Lindelof, P. E.

J. E. Pedersen, V. G. Lyssenko, J. M. Hvam, P. Uhd Jepsen, S. R. Keiding, C. B. Sørensen, and P. E. Lindelof, Appl. Phys. Lett. 62, 1265 (1993).
[CrossRef]

Lisauskas, A.

K. J. Siebert, A. Lisauskas, T. Löffler, and H. G. Roskos, Jpn. J. Appl. Phys. Part 1 43, 1038 (2004).
[CrossRef]

Loata, G. C.

G. C. Loata, T. Löffler, and H. G. Roskos, Appl. Phys. Lett. 90, 052101 (2007).
[CrossRef]

G. C. Loata, M. D. Thomson, T. Löffler, and H. G. Roskos, Appl. Phys. Lett. 91, 232506 (2007).
[CrossRef]

G. C. Loata, “Investigation of low-temperature- grown GaAs photoconductive antennae for continous-wave and pulsed terahertz generation,” Ph.D. thesis (Goethe-University, Frankfut am Main, 2007).

Löffler, T.

G. C. Loata, T. Löffler, and H. G. Roskos, Appl. Phys. Lett. 90, 052101 (2007).
[CrossRef]

G. C. Loata, M. D. Thomson, T. Löffler, and H. G. Roskos, Appl. Phys. Lett. 91, 232506 (2007).
[CrossRef]

K. J. Siebert, A. Lisauskas, T. Löffler, and H. G. Roskos, Jpn. J. Appl. Phys. Part 1 43, 1038 (2004).
[CrossRef]

Lyssenko, V. G.

J. E. Pedersen, V. G. Lyssenko, J. M. Hvam, P. Uhd Jepsen, S. R. Keiding, C. B. Sørensen, and P. E. Lindelof, Appl. Phys. Lett. 62, 1265 (1993).
[CrossRef]

Miyashita, S.

R. Yano, H. Gotoh, Y. Hirayama, and S. Miyashita, J. Appl. Phys. 96, 3635 (2004).
[CrossRef]

Pedersen, J. E.

J. E. Pedersen, V. G. Lyssenko, J. M. Hvam, P. Uhd Jepsen, S. R. Keiding, C. B. Sørensen, and P. E. Lindelof, Appl. Phys. Lett. 62, 1265 (1993).
[CrossRef]

Roskos, H. G.

G. C. Loata, M. D. Thomson, T. Löffler, and H. G. Roskos, Appl. Phys. Lett. 91, 232506 (2007).
[CrossRef]

G. C. Loata, T. Löffler, and H. G. Roskos, Appl. Phys. Lett. 90, 052101 (2007).
[CrossRef]

K. J. Siebert, A. Lisauskas, T. Löffler, and H. G. Roskos, Jpn. J. Appl. Phys. Part 1 43, 1038 (2004).
[CrossRef]

Shen, Y.-C.

N. Khiabani, Y. Huang, Y.-C. Shen, and S. J. Boyes, IEEE Trans. Antennas Propag. 61, 1538 (2013).

Siebert, K. J.

K. J. Siebert, A. Lisauskas, T. Löffler, and H. G. Roskos, Jpn. J. Appl. Phys. Part 1 43, 1038 (2004).
[CrossRef]

Sørensen, C. B.

J. E. Pedersen, V. G. Lyssenko, J. M. Hvam, P. Uhd Jepsen, S. R. Keiding, C. B. Sørensen, and P. E. Lindelof, Appl. Phys. Lett. 62, 1265 (1993).
[CrossRef]

Thomson, M. D.

G. C. Loata, M. D. Thomson, T. Löffler, and H. G. Roskos, Appl. Phys. Lett. 91, 232506 (2007).
[CrossRef]

Uhd Jepsen, P.

R. H. Jacobsen, K. Birkelund, T. Holst, P. Uhd Jepsen, and S. R. Keiding, J. Appl. Phys. 79, 2649 (1996).
[CrossRef]

P. Uhd Jepsen, R. H. Jacobsen, and S. R. Keiding, J. Opt. Soc. Am. B 13, 2424 (1996).
[CrossRef]

J. E. Pedersen, V. G. Lyssenko, J. M. Hvam, P. Uhd Jepsen, S. R. Keiding, C. B. Sørensen, and P. E. Lindelof, Appl. Phys. Lett. 62, 1265 (1993).
[CrossRef]

Xu, J.

X.-C. Zhang and J. Xu, Introduction to THz Wave Photonics (Springer Science+Business Media, 2010), Chap. 2.

Yano, R.

R. Yano, H. Gotoh, Y. Hirayama, and S. Miyashita, J. Appl. Phys. 96, 3635 (2004).
[CrossRef]

Zhang, X.-C.

X.-C. Zhang and J. Xu, Introduction to THz Wave Photonics (Springer Science+Business Media, 2010), Chap. 2.

Appl. Phys. Lett.

G. C. Loata, M. D. Thomson, T. Löffler, and H. G. Roskos, Appl. Phys. Lett. 91, 232506 (2007).
[CrossRef]

J. E. Pedersen, V. G. Lyssenko, J. M. Hvam, P. Uhd Jepsen, S. R. Keiding, C. B. Sørensen, and P. E. Lindelof, Appl. Phys. Lett. 62, 1265 (1993).
[CrossRef]

G. C. Loata, T. Löffler, and H. G. Roskos, Appl. Phys. Lett. 90, 052101 (2007).
[CrossRef]

IEEE Trans. Antennas Propag.

N. Khiabani, Y. Huang, Y.-C. Shen, and S. J. Boyes, IEEE Trans. Antennas Propag. 61, 1538 (2013).

J. Appl. Phys.

R. Yano, H. Gotoh, Y. Hirayama, and S. Miyashita, J. Appl. Phys. 96, 3635 (2004).
[CrossRef]

R. H. Jacobsen, K. Birkelund, T. Holst, P. Uhd Jepsen, and S. R. Keiding, J. Appl. Phys. 79, 2649 (1996).
[CrossRef]

J. Opt. Soc. Am. B

Jpn. J. Appl. Phys. Part 1

K. J. Siebert, A. Lisauskas, T. Löffler, and H. G. Roskos, Jpn. J. Appl. Phys. Part 1 43, 1038 (2004).
[CrossRef]

Other

G. C. Loata, “Investigation of low-temperature- grown GaAs photoconductive antennae for continous-wave and pulsed terahertz generation,” Ph.D. thesis (Goethe-University, Frankfut am Main, 2007).

X.-C. Zhang and J. Xu, Introduction to THz Wave Photonics (Springer Science+Business Media, 2010), Chap. 2.

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Figures (4)

Fig. 1.
Fig. 1.

Experimental setup. (a) Light-path diagram and (b) detection antenna structure diagram.

Fig. 2.
Fig. 2.

Normalized current J as a function of τ. Insets, corresponding Fourier transform amplitude. (observation, black curves with dots; simulation, red solid curves), (a) Wp1=20mW and Wp2=0, (b) Wp1=20mW and Wp2=4mW, (c) Wp1=10mW and Wp2=2mW.

Fig. 3.
Fig. 3.

Comparison between the measured J(s)(ν) and the calculated ETHz(ν).

Fig. 4.
Fig. 4.

Comparisons among the calculated J(s), JTHz(s), Jrad(s) and Jsc(s) in (a) the time domain and (b) the frequency domain.

Equations (6)

Equations on this page are rendered with MathJax. Learn more.

J(τ)=eμeTrep0Trepnf(t,τ)[ETHz(t)Erad(t,τ)Esc(t,τ)]dt,
Erad(t,τ)=eμenf(t,τ)E(t,τ)AdZa,
nf(t,τ)=12ηhνVνpexp(T024τc2tτc){Wp1[1+erf(tT0T02τc+τT0)]exp(ττc)+Wp2[1+erf(tT0T02τc)]},
Esc(t,τ)=P(t,τ)κε,
P(t,τ)t=P(t,τ)τr+enf(t,τ)μeE(t,τ),
ETHz(t)=A0t[a(t+t0)+b]exp(t2T2),

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