Abstract

We describe a new four-wave rectification method for the generation of intense, ultrafast terahertz (THz) pulses from gases. The fundamental and second-harmonic output of an amplified Ti:sapphire laser is focused to a peak intensity of ~5×10<sup>14</sup>W/cm <sup>2</sup> . Under these conditions, peak THz fields estimated at 2 kV/cm have been observed; the measured power spectrum peaks near 2 THz. Phase-dependent measurements show that this is a coherent process and is sensitive to the relative phases of the fundamental and second-harmonic pulses. Comparable THz signals have been observed from nitrogen and argon as well as from air.

© 2000 Optical Society of America

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1999

D. Côté, J. M. Fraser, M. DeCamp, P. H. Bucksbaum, and H. M. van Driel, Appl. Phys. Lett. 75, 3959 (1999).

A. Talebpour, J. Yang, and S. L. Chin, Opt. Commun. 163, 29 (1999).

1998

1997

C. Winnewisser, P. U. Jepsen, M. Schall, V. Schyja, and H. Helm, Appl. Phys. Lett. 70, 3069 (1997).

1993

H. Hamster, A. Sullivan, S. Gordon, W. White, and R. W. Falcone, Phys. Rev. Lett. 71, 2725 (1993).

1992

X.-C. Zhang, Y. Jin, and X. F. Ma, Appl. Phys. Lett. 61, 2764 (1992) ; T. Yajima and N. Takeuchi, Jpn. J. Appl. Phys. 9, 1361 (1970).

1991

D. J. Cook, J. X. Chen, E. A. Morlino, and R. M. Hochstrasser, Chem. Phys. Lett. 309, 221 (1991).

1990

Auston, D. H.

Bakker, H. J.

Bucksbaum, P. H.

D. Côté, J. M. Fraser, M. DeCamp, P. H. Bucksbaum, and H. M. van Driel, Appl. Phys. Lett. 75, 3959 (1999).

Chen, J. X.

D. J. Cook, J. X. Chen, E. A. Morlino, and R. M. Hochstrasser, Chem. Phys. Lett. 309, 221 (1991).

Chin, S. L.

A. Talebpour, J. Yang, and S. L. Chin, Opt. Commun. 163, 29 (1999).

Cho, G. C.

Cook, D. J.

D. J. Cook, J. X. Chen, E. A. Morlino, and R. M. Hochstrasser, Chem. Phys. Lett. 309, 221 (1991).

Côté, D.

D. Côté, J. M. Fraser, M. DeCamp, P. H. Bucksbaum, and H. M. van Driel, Appl. Phys. Lett. 75, 3959 (1999).

Darrow, J. T.

DeCamp, M.

D. Côté, J. M. Fraser, M. DeCamp, P. H. Bucksbaum, and H. M. van Driel, Appl. Phys. Lett. 75, 3959 (1999).

Falcone, R. W.

H. Hamster, A. Sullivan, S. Gordon, W. White, and R. W. Falcone, Phys. Rev. Lett. 71, 2725 (1993).

Fattinger, C.

Fraser, J. M.

D. Côté, J. M. Fraser, M. DeCamp, P. H. Bucksbaum, and H. M. van Driel, Appl. Phys. Lett. 75, 3959 (1999).

Gordon, S.

H. Hamster, A. Sullivan, S. Gordon, W. White, and R. W. Falcone, Phys. Rev. Lett. 71, 2725 (1993).

Grischkowsky, D.

Hamster, H.

H. Hamster, A. Sullivan, S. Gordon, W. White, and R. W. Falcone, Phys. Rev. Lett. 71, 2725 (1993).

Helm, H.

C. Winnewisser, P. U. Jepsen, M. Schall, V. Schyja, and H. Helm, Appl. Phys. Lett. 70, 3069 (1997).

Hochstrasser, R. M.

D. J. Cook, J. X. Chen, E. A. Morlino, and R. M. Hochstrasser, Chem. Phys. Lett. 309, 221 (1991).

Hu, B. B.

Jepsen, P. U.

C. Winnewisser, P. U. Jepsen, M. Schall, V. Schyja, and H. Helm, Appl. Phys. Lett. 70, 3069 (1997).

Jin, Y.

X.-C. Zhang, Y. Jin, and X. F. Ma, Appl. Phys. Lett. 61, 2764 (1992) ; T. Yajima and N. Takeuchi, Jpn. J. Appl. Phys. 9, 1361 (1970).

Kurz, H.

Ma, X. F.

X.-C. Zhang, Y. Jin, and X. F. Ma, Appl. Phys. Lett. 61, 2764 (1992) ; T. Yajima and N. Takeuchi, Jpn. J. Appl. Phys. 9, 1361 (1970).

Morlino, E. A.

D. J. Cook, J. X. Chen, E. A. Morlino, and R. M. Hochstrasser, Chem. Phys. Lett. 309, 221 (1991).

Schall, M.

C. Winnewisser, P. U. Jepsen, M. Schall, V. Schyja, and H. Helm, Appl. Phys. Lett. 70, 3069 (1997).

Schyja, V.

C. Winnewisser, P. U. Jepsen, M. Schall, V. Schyja, and H. Helm, Appl. Phys. Lett. 70, 3069 (1997).

Shelton, D. P.

D. P. Shelton, Phys. Rev. A 42, 2578 (1990).

Sullivan, A.

H. Hamster, A. Sullivan, S. Gordon, W. White, and R. W. Falcone, Phys. Rev. Lett. 71, 2725 (1993).

Takeuchi, N.

X.-C. Zhang, Y. Jin, and X. F. Ma, Appl. Phys. Lett. 61, 2764 (1992) ; T. Yajima and N. Takeuchi, Jpn. J. Appl. Phys. 9, 1361 (1970).

Talebpour, A.

A. Talebpour, J. Yang, and S. L. Chin, Opt. Commun. 163, 29 (1999).

van Driel, H. M.

D. Côté, J. M. Fraser, M. DeCamp, P. H. Bucksbaum, and H. M. van Driel, Appl. Phys. Lett. 75, 3959 (1999).

White, W.

H. Hamster, A. Sullivan, S. Gordon, W. White, and R. W. Falcone, Phys. Rev. Lett. 71, 2725 (1993).

Winnewisser, C.

C. Winnewisser, P. U. Jepsen, M. Schall, V. Schyja, and H. Helm, Appl. Phys. Lett. 70, 3069 (1997).

Wu, Q.

Yajima, T.

X.-C. Zhang, Y. Jin, and X. F. Ma, Appl. Phys. Lett. 61, 2764 (1992) ; T. Yajima and N. Takeuchi, Jpn. J. Appl. Phys. 9, 1361 (1970).

Yang, J.

A. Talebpour, J. Yang, and S. L. Chin, Opt. Commun. 163, 29 (1999).

Zhang, X.-C.

Appl. Phys. Lett.

C. Winnewisser, P. U. Jepsen, M. Schall, V. Schyja, and H. Helm, Appl. Phys. Lett. 70, 3069 (1997).

D. Côté, J. M. Fraser, M. DeCamp, P. H. Bucksbaum, and H. M. van Driel, Appl. Phys. Lett. 75, 3959 (1999).

X.-C. Zhang, Y. Jin, and X. F. Ma, Appl. Phys. Lett. 61, 2764 (1992) ; T. Yajima and N. Takeuchi, Jpn. J. Appl. Phys. 9, 1361 (1970).

Chem. Phys. Lett.

D. J. Cook, J. X. Chen, E. A. Morlino, and R. M. Hochstrasser, Chem. Phys. Lett. 309, 221 (1991).

J. Opt. Soc. Am. B

Opt. Commun.

A. Talebpour, J. Yang, and S. L. Chin, Opt. Commun. 163, 29 (1999).

Opt. Lett.

Phys. Rev. A

D. P. Shelton, Phys. Rev. A 42, 2578 (1990).

Phys. Rev. Lett.

H. Hamster, A. Sullivan, S. Gordon, W. White, and R. W. Falcone, Phys. Rev. Lett. 71, 2725 (1993).

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