Abstract

We present the results of a direct measurement of the temporal response of a terahertz (THz) photoconductive receiver obtained by dithered-edge sampling. The receiver response has structure that accounts for the negative-going leading edge of the pulse shape that is often seen in measurements made with these receivers in a conventional sampling arrangement. We show that the THz pulse shape measured by conventional photoconductive sampling is indeed a cross correlation of the pulse with the measured receiver’s response.

© 1999 Optical Society of America

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    [CrossRef]

1999 (1)

J. Bromage, I. A. Walmsley, and C. R. Stroud, Appl. Phys. Lett. 75, 2181 (1999).
[CrossRef]

1996 (2)

1995 (2)

B. Hu and M. Nuss, Opt. Lett. 20, 1716 (1995).
[CrossRef]

R. A. Cheville and D. Grischkowsky, Appl. Phys. Lett. 67, 1960 (1995).
[CrossRef]

1993 (1)

J. T. Darrow, D. H. Auston, and J. D. Morse, Proc. SPIE 1861, 186 (1993).
[CrossRef]

1992 (1)

P. N. Saeta, J. F. Federici, B. I. Greene, and D. R. Dykaar, Appl. Phys. Lett. 60, 1477 (1992).
[CrossRef]

1990 (1)

1984 (1)

D. H. Auston, K. P. Cheung, and P. R. Smith, Appl. Phys. Lett. 45, 284 (1984).
[CrossRef]

1968 (1)

Auston, D. H.

J. T. Darrow, D. H. Auston, and J. D. Morse, Proc. SPIE 1861, 186 (1993).
[CrossRef]

D. H. Auston, K. P. Cheung, and P. R. Smith, Appl. Phys. Lett. 45, 284 (1984).
[CrossRef]

Bromage, J.

J. Bromage, I. A. Walmsley, and C. R. Stroud, Appl. Phys. Lett. 75, 2181 (1999).
[CrossRef]

Cheung, K. P.

D. H. Auston, K. P. Cheung, and P. R. Smith, Appl. Phys. Lett. 45, 284 (1984).
[CrossRef]

Cheville, R. A.

R. A. Cheville and D. Grischkowsky, Appl. Phys. Lett. 67, 1960 (1995).
[CrossRef]

Darrow, J. T.

J. T. Darrow, D. H. Auston, and J. D. Morse, Proc. SPIE 1861, 186 (1993).
[CrossRef]

Dykaar, D. R.

P. N. Saeta, J. F. Federici, B. I. Greene, and D. R. Dykaar, Appl. Phys. Lett. 60, 1477 (1992).
[CrossRef]

Fattinger, Ch.

Federici, J. F.

P. N. Saeta, J. F. Federici, B. I. Greene, and D. R. Dykaar, Appl. Phys. Lett. 60, 1477 (1992).
[CrossRef]

Greene, B. I.

P. N. Saeta, J. F. Federici, B. I. Greene, and D. R. Dykaar, Appl. Phys. Lett. 60, 1477 (1992).
[CrossRef]

Grischkowsky, D.

Hu, B.

Jacobsen, R. H.

Jones, R. A.

Keiding, S.

Keiding, S. R.

Morse, J. D.

J. T. Darrow, D. H. Auston, and J. D. Morse, Proc. SPIE 1861, 186 (1993).
[CrossRef]

Nuss, M.

Saeta, P. N.

P. N. Saeta, J. F. Federici, B. I. Greene, and D. R. Dykaar, Appl. Phys. Lett. 60, 1477 (1992).
[CrossRef]

Smith, P. R.

D. H. Auston, K. P. Cheung, and P. R. Smith, Appl. Phys. Lett. 45, 284 (1984).
[CrossRef]

Stroud, C. R.

J. Bromage, I. A. Walmsley, and C. R. Stroud, Appl. Phys. Lett. 75, 2181 (1999).
[CrossRef]

Uhd Jepsen, P.

van Exter, M.

Walmsley, I. A.

J. Bromage, I. A. Walmsley, and C. R. Stroud, Appl. Phys. Lett. 75, 2181 (1999).
[CrossRef]

Wu, Q.

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

Zhang, X.-C.

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

Appl. Opt. (1)

Appl. Phys. Lett. (5)

P. N. Saeta, J. F. Federici, B. I. Greene, and D. R. Dykaar, Appl. Phys. Lett. 60, 1477 (1992).
[CrossRef]

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

R. A. Cheville and D. Grischkowsky, Appl. Phys. Lett. 67, 1960 (1995).
[CrossRef]

D. H. Auston, K. P. Cheung, and P. R. Smith, Appl. Phys. Lett. 45, 284 (1984).
[CrossRef]

J. Bromage, I. A. Walmsley, and C. R. Stroud, Appl. Phys. Lett. 75, 2181 (1999).
[CrossRef]

J. Opt. Soc. Am. B (2)

Opt. Lett. (1)

Proc. SPIE (1)

J. T. Darrow, D. H. Auston, and J. D. Morse, Proc. SPIE 1861, 186 (1993).
[CrossRef]

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Figures (4)

Fig. 1
Fig. 1

Schematic of the experimental setup, showing the THz emitter (E), the triggered attenuator (TA), and the receiver under test (R). The lock-in amplifier was locked at the frequency of the delay dither.

Fig. 2
Fig. 2

Temporal response of the receiver. Inset, the electric field of the THz pulse from the large-aperture emitter, measured with a variant of DES.

Fig. 3
Fig. 3

Comparison of the PCS measurement of the THz pulse shape with the prediction calculated by use of the measured receiver response.

Fig. 4
Fig. 4

(a) Schematic of the angle-broadening experiment. The THz pulse is polarized along the axis of rotation. (b) THz pulse shapes measured by the receiver in PCS mode. (c) THz pulse shapes predicted from DES measurement of receiver’s response.

Equations (3)

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Sτ=-EtRt-τdt,
Sτ=E0--τRtdt,
R-τdSdττ.

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