Abstract

Forward and backward terahertz emission by ionizing two-color laser pulses in gas is investigated by means of a simple semianalytical model based on Jefimenko’s equations and rigorous Maxwell simulations in one and two dimensions. We find the emission in the backward direction has a much smaller spectral bandwidth than in the forward direction and explain this by interference effects. Forward terahertz radiation is generated predominantly at the ionization front and is thus almost not affected by the opacity of the plasma, in excellent agreement with results obtained from a unidirectional pulse propagation model.

© 2011 Optical Society of America

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2010

I. Babushkin, W. Kuehn, C. Köhler, S. Skupin, L. Bergé, K. Reimann, M. Woerner, J. Herrmann, and T. Elsaesser, Phys. Rev. Lett. 105, 053903 (2010).
[CrossRef]

J. Peñano, P. Sprangle, B. Hafizi, D. Gordon, and P. Serafim, Phys. Rev. E 81, 026407 (2010).
[CrossRef]

I. Babushkin, S. Skupin, and J. Herrmann, Opt. Express 18, 9658 (2010).
[CrossRef]

2007

K.-Y. Kim, J. H. Glownia, A. J. Taylor, and G. Rodriguez, Opt. Express 15, 4577 (2007).
[CrossRef]

M. D. Thomson, M. Kress, T. Löffler, and H. G. Roskos, Laser Photonics Rev. 1, 349 (2007).
[CrossRef]

2006

J. Dai, X. Xie, and X.-C. Zhang, Phys. Rev. Lett. 97, 103903(2006).
[CrossRef]

2005

2004

M. Kolesik and J. V. Moloney, Phys. Rev. E 70, 036604(2004).
[CrossRef]

2000

1997

R. M. Joseph and A. Taflove, IEEE Trans. Antennas Propag. 45, 364 (1997).
[CrossRef]

1966

O. D. Jefimenko, Electricity and Magnetism: An Introduction to the Theory of Electric and Magnetic Fields(Appleton-Century-Crofts, 1966).

1960

A. Dalgarno and A. E. Kingston, Proc. R. Soc. A 259, 424(1960).
[CrossRef]

Babushkin, I.

I. Babushkin, S. Skupin, and J. Herrmann, Opt. Express 18, 9658 (2010).
[CrossRef]

I. Babushkin, W. Kuehn, C. Köhler, S. Skupin, L. Bergé, K. Reimann, M. Woerner, J. Herrmann, and T. Elsaesser, Phys. Rev. Lett. 105, 053903 (2010).
[CrossRef]

Bartel, T.

Bergé, L.

I. Babushkin, W. Kuehn, C. Köhler, S. Skupin, L. Bergé, K. Reimann, M. Woerner, J. Herrmann, and T. Elsaesser, Phys. Rev. Lett. 105, 053903 (2010).
[CrossRef]

Cook, D. J.

Dai, J.

J. Dai, X. Xie, and X.-C. Zhang, Phys. Rev. Lett. 97, 103903(2006).
[CrossRef]

Dalgarno, A.

A. Dalgarno and A. E. Kingston, Proc. R. Soc. A 259, 424(1960).
[CrossRef]

Elsaesser, T.

I. Babushkin, W. Kuehn, C. Köhler, S. Skupin, L. Bergé, K. Reimann, M. Woerner, J. Herrmann, and T. Elsaesser, Phys. Rev. Lett. 105, 053903 (2010).
[CrossRef]

T. Bartel, P. Gaal, K. Reimann, M. Woerner, and T. Elsaesser, Opt. Lett. 30, 2805 (2005).
[CrossRef]

Gaal, P.

Glownia, J. H.

Gordon, D.

J. Peñano, P. Sprangle, B. Hafizi, D. Gordon, and P. Serafim, Phys. Rev. E 81, 026407 (2010).
[CrossRef]

Hafizi, B.

J. Peñano, P. Sprangle, B. Hafizi, D. Gordon, and P. Serafim, Phys. Rev. E 81, 026407 (2010).
[CrossRef]

Herrmann, J.

I. Babushkin, W. Kuehn, C. Köhler, S. Skupin, L. Bergé, K. Reimann, M. Woerner, J. Herrmann, and T. Elsaesser, Phys. Rev. Lett. 105, 053903 (2010).
[CrossRef]

I. Babushkin, S. Skupin, and J. Herrmann, Opt. Express 18, 9658 (2010).
[CrossRef]

Hochstrasser, R. M.

Jefimenko, O. D.

O. D. Jefimenko, Electricity and Magnetism: An Introduction to the Theory of Electric and Magnetic Fields(Appleton-Century-Crofts, 1966).

Joseph, R. M.

R. M. Joseph and A. Taflove, IEEE Trans. Antennas Propag. 45, 364 (1997).
[CrossRef]

Kim, K.-Y.

Kingston, A. E.

A. Dalgarno and A. E. Kingston, Proc. R. Soc. A 259, 424(1960).
[CrossRef]

Köhler, C.

I. Babushkin, W. Kuehn, C. Köhler, S. Skupin, L. Bergé, K. Reimann, M. Woerner, J. Herrmann, and T. Elsaesser, Phys. Rev. Lett. 105, 053903 (2010).
[CrossRef]

Kolesik, M.

M. Kolesik and J. V. Moloney, Phys. Rev. E 70, 036604(2004).
[CrossRef]

Kress, M.

M. D. Thomson, M. Kress, T. Löffler, and H. G. Roskos, Laser Photonics Rev. 1, 349 (2007).
[CrossRef]

Kuehn, W.

I. Babushkin, W. Kuehn, C. Köhler, S. Skupin, L. Bergé, K. Reimann, M. Woerner, J. Herrmann, and T. Elsaesser, Phys. Rev. Lett. 105, 053903 (2010).
[CrossRef]

Löffler, T.

M. D. Thomson, M. Kress, T. Löffler, and H. G. Roskos, Laser Photonics Rev. 1, 349 (2007).
[CrossRef]

Moloney, J. V.

M. Kolesik and J. V. Moloney, Phys. Rev. E 70, 036604(2004).
[CrossRef]

Peñano, J.

J. Peñano, P. Sprangle, B. Hafizi, D. Gordon, and P. Serafim, Phys. Rev. E 81, 026407 (2010).
[CrossRef]

Reimann, K.

I. Babushkin, W. Kuehn, C. Köhler, S. Skupin, L. Bergé, K. Reimann, M. Woerner, J. Herrmann, and T. Elsaesser, Phys. Rev. Lett. 105, 053903 (2010).
[CrossRef]

T. Bartel, P. Gaal, K. Reimann, M. Woerner, and T. Elsaesser, Opt. Lett. 30, 2805 (2005).
[CrossRef]

Rodriguez, G.

Roskos, H. G.

M. D. Thomson, M. Kress, T. Löffler, and H. G. Roskos, Laser Photonics Rev. 1, 349 (2007).
[CrossRef]

Serafim, P.

J. Peñano, P. Sprangle, B. Hafizi, D. Gordon, and P. Serafim, Phys. Rev. E 81, 026407 (2010).
[CrossRef]

Skupin, S.

I. Babushkin, W. Kuehn, C. Köhler, S. Skupin, L. Bergé, K. Reimann, M. Woerner, J. Herrmann, and T. Elsaesser, Phys. Rev. Lett. 105, 053903 (2010).
[CrossRef]

I. Babushkin, S. Skupin, and J. Herrmann, Opt. Express 18, 9658 (2010).
[CrossRef]

Sprangle, P.

J. Peñano, P. Sprangle, B. Hafizi, D. Gordon, and P. Serafim, Phys. Rev. E 81, 026407 (2010).
[CrossRef]

Taflove, A.

R. M. Joseph and A. Taflove, IEEE Trans. Antennas Propag. 45, 364 (1997).
[CrossRef]

Taylor, A. J.

Thomson, M. D.

M. D. Thomson, M. Kress, T. Löffler, and H. G. Roskos, Laser Photonics Rev. 1, 349 (2007).
[CrossRef]

Woerner, M.

I. Babushkin, W. Kuehn, C. Köhler, S. Skupin, L. Bergé, K. Reimann, M. Woerner, J. Herrmann, and T. Elsaesser, Phys. Rev. Lett. 105, 053903 (2010).
[CrossRef]

T. Bartel, P. Gaal, K. Reimann, M. Woerner, and T. Elsaesser, Opt. Lett. 30, 2805 (2005).
[CrossRef]

Xie, X.

J. Dai, X. Xie, and X.-C. Zhang, Phys. Rev. Lett. 97, 103903(2006).
[CrossRef]

Zhang, X.-C.

J. Dai, X. Xie, and X.-C. Zhang, Phys. Rev. Lett. 97, 103903(2006).
[CrossRef]

IEEE Trans. Antennas Propag.

R. M. Joseph and A. Taflove, IEEE Trans. Antennas Propag. 45, 364 (1997).
[CrossRef]

Laser Photonics Rev.

M. D. Thomson, M. Kress, T. Löffler, and H. G. Roskos, Laser Photonics Rev. 1, 349 (2007).
[CrossRef]

Opt. Express

Opt. Lett.

Phys. Rev. E

M. Kolesik and J. V. Moloney, Phys. Rev. E 70, 036604(2004).
[CrossRef]

J. Peñano, P. Sprangle, B. Hafizi, D. Gordon, and P. Serafim, Phys. Rev. E 81, 026407 (2010).
[CrossRef]

Phys. Rev. Lett.

J. Dai, X. Xie, and X.-C. Zhang, Phys. Rev. Lett. 97, 103903(2006).
[CrossRef]

I. Babushkin, W. Kuehn, C. Köhler, S. Skupin, L. Bergé, K. Reimann, M. Woerner, J. Herrmann, and T. Elsaesser, Phys. Rev. Lett. 105, 053903 (2010).
[CrossRef]

Proc. R. Soc. A

A. Dalgarno and A. E. Kingston, Proc. R. Soc. A 259, 424(1960).
[CrossRef]

Other

O. D. Jefimenko, Electricity and Magnetism: An Introduction to the Theory of Electric and Magnetic Fields(Appleton-Century-Crofts, 1966).

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