Abstract

The near-field propagation behavior of terahertz (THz) pulses generated by a planar large-aperture photoconducting THz transmitter has been characterized. A simulation model based on Huygens–Fresnel diffraction theory has been developed that permits accurate prediction of the spatiotemporal profiles of the THz beam everywhere and gives excellent agreement with experimental measurements. Two key conclusions emerge from this research, namely, the realization that for practical laboratory setups one is always working in the near-field regime and that the proper temporal shape of the THz field at the antenna is one that rises rapidly but decays slowly.

© 1998 Optical Society of America

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References

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  1. E. Budiarto, J. Corson, R. Mallozzi, J. Orenstein, J. Bokor, E. Danskter, J. Clarke, I. Bozovic, and J. Eckstein, in Quantum Electronics and Laser Science Conference, Vol. 12 of 1997 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1997), pp. 41–42.
  2. R. R. Jones, D. You, and P. H. Bucksbaum, Phys. Rev. Lett. 70, 1236 (1993).
    [CrossRef] [PubMed]
  3. E. Budiarto, J. Margolies, S. Jeong, J. Son, and J. Bokor, IEEE J. Quantum Electron. 32, 1839 (1996).
    [CrossRef]
  4. Q. Wu and X. C. Zhang, Appl. Phys. Lett. 68, 1604 (1996).
    [CrossRef]
  5. S. E. Harris, J. J. Macklin, and T. W. Hänsch, Opt. Commun. 100, 487 (1993).
    [CrossRef]
  6. J. Goodman, Introduction to Fourier Optics, 2nd ed. (McGraw-Hill, New York, 1995), p. 47.
  7. M. van Exter, Ch. Fattinger, and D. Grischkowsky, Opt. Lett. 14, 1128 (1989).
    [CrossRef]

1996 (2)

E. Budiarto, J. Margolies, S. Jeong, J. Son, and J. Bokor, IEEE J. Quantum Electron. 32, 1839 (1996).
[CrossRef]

Q. Wu and X. C. Zhang, Appl. Phys. Lett. 68, 1604 (1996).
[CrossRef]

1993 (2)

S. E. Harris, J. J. Macklin, and T. W. Hänsch, Opt. Commun. 100, 487 (1993).
[CrossRef]

R. R. Jones, D. You, and P. H. Bucksbaum, Phys. Rev. Lett. 70, 1236 (1993).
[CrossRef] [PubMed]

1989 (1)

Bokor, J.

E. Budiarto, J. Margolies, S. Jeong, J. Son, and J. Bokor, IEEE J. Quantum Electron. 32, 1839 (1996).
[CrossRef]

E. Budiarto, J. Corson, R. Mallozzi, J. Orenstein, J. Bokor, E. Danskter, J. Clarke, I. Bozovic, and J. Eckstein, in Quantum Electronics and Laser Science Conference, Vol. 12 of 1997 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1997), pp. 41–42.

Bozovic, I.

E. Budiarto, J. Corson, R. Mallozzi, J. Orenstein, J. Bokor, E. Danskter, J. Clarke, I. Bozovic, and J. Eckstein, in Quantum Electronics and Laser Science Conference, Vol. 12 of 1997 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1997), pp. 41–42.

Bucksbaum, P. H.

R. R. Jones, D. You, and P. H. Bucksbaum, Phys. Rev. Lett. 70, 1236 (1993).
[CrossRef] [PubMed]

Budiarto, E.

E. Budiarto, J. Margolies, S. Jeong, J. Son, and J. Bokor, IEEE J. Quantum Electron. 32, 1839 (1996).
[CrossRef]

E. Budiarto, J. Corson, R. Mallozzi, J. Orenstein, J. Bokor, E. Danskter, J. Clarke, I. Bozovic, and J. Eckstein, in Quantum Electronics and Laser Science Conference, Vol. 12 of 1997 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1997), pp. 41–42.

Clarke, J.

E. Budiarto, J. Corson, R. Mallozzi, J. Orenstein, J. Bokor, E. Danskter, J. Clarke, I. Bozovic, and J. Eckstein, in Quantum Electronics and Laser Science Conference, Vol. 12 of 1997 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1997), pp. 41–42.

Corson, J.

E. Budiarto, J. Corson, R. Mallozzi, J. Orenstein, J. Bokor, E. Danskter, J. Clarke, I. Bozovic, and J. Eckstein, in Quantum Electronics and Laser Science Conference, Vol. 12 of 1997 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1997), pp. 41–42.

Danskter, E.

E. Budiarto, J. Corson, R. Mallozzi, J. Orenstein, J. Bokor, E. Danskter, J. Clarke, I. Bozovic, and J. Eckstein, in Quantum Electronics and Laser Science Conference, Vol. 12 of 1997 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1997), pp. 41–42.

Eckstein, J.

E. Budiarto, J. Corson, R. Mallozzi, J. Orenstein, J. Bokor, E. Danskter, J. Clarke, I. Bozovic, and J. Eckstein, in Quantum Electronics and Laser Science Conference, Vol. 12 of 1997 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1997), pp. 41–42.

Fattinger, Ch.

Goodman, J.

J. Goodman, Introduction to Fourier Optics, 2nd ed. (McGraw-Hill, New York, 1995), p. 47.

Grischkowsky, D.

Hänsch, T. W.

S. E. Harris, J. J. Macklin, and T. W. Hänsch, Opt. Commun. 100, 487 (1993).
[CrossRef]

Harris, S. E.

S. E. Harris, J. J. Macklin, and T. W. Hänsch, Opt. Commun. 100, 487 (1993).
[CrossRef]

Jeong, S.

E. Budiarto, J. Margolies, S. Jeong, J. Son, and J. Bokor, IEEE J. Quantum Electron. 32, 1839 (1996).
[CrossRef]

Jones, R. R.

R. R. Jones, D. You, and P. H. Bucksbaum, Phys. Rev. Lett. 70, 1236 (1993).
[CrossRef] [PubMed]

Macklin, J. J.

S. E. Harris, J. J. Macklin, and T. W. Hänsch, Opt. Commun. 100, 487 (1993).
[CrossRef]

Mallozzi, R.

E. Budiarto, J. Corson, R. Mallozzi, J. Orenstein, J. Bokor, E. Danskter, J. Clarke, I. Bozovic, and J. Eckstein, in Quantum Electronics and Laser Science Conference, Vol. 12 of 1997 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1997), pp. 41–42.

Margolies, J.

E. Budiarto, J. Margolies, S. Jeong, J. Son, and J. Bokor, IEEE J. Quantum Electron. 32, 1839 (1996).
[CrossRef]

Orenstein, J.

E. Budiarto, J. Corson, R. Mallozzi, J. Orenstein, J. Bokor, E. Danskter, J. Clarke, I. Bozovic, and J. Eckstein, in Quantum Electronics and Laser Science Conference, Vol. 12 of 1997 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1997), pp. 41–42.

Son, J.

E. Budiarto, J. Margolies, S. Jeong, J. Son, and J. Bokor, IEEE J. Quantum Electron. 32, 1839 (1996).
[CrossRef]

van Exter, M.

Wu, Q.

Q. Wu and X. C. Zhang, Appl. Phys. Lett. 68, 1604 (1996).
[CrossRef]

You, D.

R. R. Jones, D. You, and P. H. Bucksbaum, Phys. Rev. Lett. 70, 1236 (1993).
[CrossRef] [PubMed]

Zhang, X. C.

Q. Wu and X. C. Zhang, Appl. Phys. Lett. 68, 1604 (1996).
[CrossRef]

Appl. Phys. Lett. (1)

Q. Wu and X. C. Zhang, Appl. Phys. Lett. 68, 1604 (1996).
[CrossRef]

IEEE J. Quantum Electron. (1)

E. Budiarto, J. Margolies, S. Jeong, J. Son, and J. Bokor, IEEE J. Quantum Electron. 32, 1839 (1996).
[CrossRef]

Opt. Commun. (1)

S. E. Harris, J. J. Macklin, and T. W. Hänsch, Opt. Commun. 100, 487 (1993).
[CrossRef]

Opt. Lett. (1)

Phys. Rev. Lett. (1)

R. R. Jones, D. You, and P. H. Bucksbaum, Phys. Rev. Lett. 70, 1236 (1993).
[CrossRef] [PubMed]

Other (2)

E. Budiarto, J. Corson, R. Mallozzi, J. Orenstein, J. Bokor, E. Danskter, J. Clarke, I. Bozovic, and J. Eckstein, in Quantum Electronics and Laser Science Conference, Vol. 12 of 1997 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1997), pp. 41–42.

J. Goodman, Introduction to Fourier Optics, 2nd ed. (McGraw-Hill, New York, 1995), p. 47.

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Figures (4)

Fig. 1
Fig. 1

Schematic diagram of the simulation model, shown in two dimensions. The aperture has a size of 3 cm×3 cm. The lens is placed 17  cm from the aperture. The lens aperture is 6 cm×6 cm.

Fig. 2
Fig. 2

(a) Experimental and (b) simulation results for the THz pulse shape at a distance z directly behind the antenna. See text for explanation. Time 0.0  ps has been set arbitrarily at the peak of the pulse.

Fig. 3
Fig. 3

(a) Experimental and (b) simulation results for the spatiotemporal profile of the THz pulse at the focal plane of a 11.43-cm focal-length parabolic mirror.

Fig. 4
Fig. 4

(a) Experimental and (b) simulation results for the THz pulse shape at a distance z from the focus of a 11.43-cm focal-length parabolic mirror. Time 0.0  ps has been set arbitrarily at the zero crossing.

Equations (1)

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uP0, t=Σcosn^r012πcr01ddtuP1, t-r01cdξ.

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