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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Vol. 21, Iss. 8 — Aug. 1, 2004
  • pp: 1559–1567

Femtosecond pump-probe study of preformed plasma channels

Rafal Zgadzaj, Erhard W. Gaul, Nicholas H. Matlis, Gennady Shvets, and Michael C. Downer  »View Author Affiliations

JOSA B, Vol. 21, Issue 8, pp. 1559-1567 (2004)

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We report femtosecond pump–probe experiments in He plasma waveguides using 800-nm, 80-fs pump pulses of 0.2×1018 W/cm2 peak guided intensity and single orthogonally polarized 800-nm probe pulses ~0.1% as intense as the pump. Single-shot spectra and spatial profiles of the probe pulses exiting the channels are measured through a crossed-polarization analyzer at various pump–probe time delays Δt. At |Δt|≳100 fs, we observe frequency-domain interference between the probe and a weak component of the exiting pump created by hybridization of its polarization state through interaction with the channel. Frequency-domain interference measurements show this “depolarized” component differs substantially in mode structure from the injected pump pulse. This component is nearly undetectable by direct measurements of pump leakage without the probe. We analyze possible causes of depolarization within the channel and near its entrance and exit regions. At Δt≲0, i.e., the probe pulse propagates in the leading edge of the pump pulse, we observe spectral blueshifts in the transmitted-probe spectrum that are not evident in the transmitted pump. The evidence indicates that pump depolarization and probe blueshifts both originate primarily near the channel entrance.

© 2004 Optical Society of America

OCIS Codes
(230.7380) Optical devices : Waveguides, channeled
(320.0320) Ultrafast optics : Ultrafast optics
(320.7100) Ultrafast optics : Ultrafast measurements
(350.5400) Other areas of optics : Plasmas

Rafal Zgadzaj, Erhard W. Gaul, Nicholas H. Matlis, Gennady Shvets, and Michael C. Downer, "Femtosecond pump-probe study of preformed plasma channels," J. Opt. Soc. Am. B 21, 1559-1567 (2004)

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  1. P. Sprangle and B. Hafizi, “Guiding and stability of short laser pulses in partially stripped ionizing plasmas,” Phys. Plasmas 6, 1683–1689 (1999), and references therein.
  2. Y. Ehrlich, C. Cohen, A. Zigler, J. Krall, P. Sprangle, and E. Esarey, “Guiding of high-intensity laser pulses in straight and curved plasma channel experiments,” Phys. Rev. Lett. 77, 4186–4189 (1996).
  3. D. Kaganovich, P. Sasorov, C. Cohen, and A. Zigler, “Variable profile capillary discharge for improved phase matching in a laser wakefield accelerator,” Appl. Phys. Lett. 75, 772–774 (1999).
  4. T. Hosokai, M. Kando, H. Dewa, H. Kotaki, S. Kondo, N. Hasegawa, K. Nakajima, and K. Horioka, “Optical guidance of terawatt laser pulses by the implosion phase of a fast Z-pinch discharge in a gas-filled capillary,” Opt. Lett. 25, 10–12 (2000).
  5. A. Butler, D. J. Spence, and S. M. Hooker, “Guiding of high-intensity laser pulses with a hydrogen-filled capillary discharge waveguide,” Phys. Rev. Lett. 89, 185003 (2002).
  6. C. G. Durfee III, J. Lynch, and H. M. Milchberg, “Development of a plasma waveguide for high-intensity laser pulses,” Phys. Rev. E 51, 2368–2389 (1995).
  7. E. W. Gaul, S. P. Le Blanc, A. R. Rundquist, R. Zgadzaj, H. Langhoff, and M. C. Downer, “Production and characterization of a fully ionized He plasma channel,” Appl. Phys. Lett. 77, 4112–4114 (2000).
  8. P. Volfbeyn, E. Esarey, and W. P. Leemans, “Guiding of laser pulses in plasma channels created by the ignitor-heater technique,” Phys. Plasmas 6, 2269–2277 (1999).
  9. S. P. Nikitin, I. Alexeev, J. Fan, and H. M. Milchberg, “High efficiency coupling and guiding of intense femtosecond laser pulses in preformed plasma channels in an elongated gas jet,” Phys. Rev. E 59, R3839–R3842 (1999).
  10. W. M. Wood, C. W. Siders, and M. C. Downer, “Measurement of femtosecond ionization dynamics of atmospheric density gases by spectral blueshifting,” Phys. Rev. Lett. 67, 3523–3526 (1991).
  11. P. Blanc, P. Audebert, F. Fallies, J. P. Geindre, J. C. Gauthier, A. Dos Santos, A. Mysyrowicz, and A. Antonetti, “Phase dynamics of reflected probe pulses from sub-100-fs laser-produced plasmas,” J. Opt. Soc. Am. B 13, 118–124 (1996).
  12. M. K. Grimes, A. R. Rundquist, Y.-S. Lee, and M. C. Downer, “Experimental identification of vacuum heating at femtosecond-laser-irradiated metal surfaces,” Phys. Rev. Lett. 82, 4010–4013 (1999).
  13. K. Y. Kim, I. Alexeev, E. Parra, and H. M. Milchberg, “Time-resolved explosion of intense-laser-heated clusters,” Phys. Rev. Lett. 90, 023401 (2003).
  14. C. W. Siders, S. P. Le Blanc, D. Fisher, T. Tajima, M. C. Downer, A. Babine, A. Stepanov, and A. Sergeev, “Laser wakefield excitation and measurement by femtosecond longitudinal interferometry,” Phys. Rev. Lett. 76, 3570–3573 (1996).
  15. J. R. Marques, R. Dorchies, F. Amiranoff, P. Audebert, J. C. Gauthier, J. P. Geindre, A. Antonetti, T. M. Antonsen, P. Chessa, and P. Mora, “Laser wakefield: experimental study of nonlinear radial electron oscillations,” Phys. Plasmas 5, 1162–1177 (1998).
  16. S. P. Le Blanc, M. C. Downer, R. Wagner, S.-Y. Chen, A. Maksimchuk, G. Mourou, and D. Umstadter, “Temporal characterization of a self-modulated laser wakefield,” Phys. Rev. Lett. 77, 5381–5384 (1996).
  17. A. Ting, K. Krushelnick, C. I. Moore, H. R. Burris, E. Esarey, J. Krall, and P. Sprangle, “Temporal evolution of self-modulated laser wakefields measured by coherent Thomson scattering,” Phys. Rev. Lett. 77, 5377–5380 (1996).
  18. H. Kotaki, M. Kando, T. Oketa, S. Masuda, J. K. Koga, S. Kondo, S. Kanazawa, T. Yokoyama, T. Matoba, and K. Nakajima, “Direct measurement of coherent ultrahigh wake-fields excited by intense ultrashort laser pulses in a gas-jet plasma,” Phys. Plasmas 9, 1392–1400 (2002).
  19. S. P. Le Blanc, E. W. Gaul, N. M. Matlis, A. R. Rundquist, and M. C. Downer, “Single-shot measurement of temporal phase shifts by frequency-domain holography,” Opt. Lett. 25, 764–766 (2000).
  20. K. Y. Kim, I. Alexeev, and H. M. Milchberg, “Single-shot supercontinuum spectral interferometry,” Appl. Phys. Lett. 81, 4124–4126 (2002).
  21. S. C. Wilks, J. M. Dawson, W. B. Mori, T. Katsouleas, and M. E. Jones, “Photon accelerator,” Phys. Rev. Lett. 62, 2600–2603 (1989).
  22. J. M. Dias, L. Oliveira e Silva, and J. T. Mendonca, “Photon accelerator and interferometry diagnostics of laser wakefields,” in Proceedings of the 1st JAERI-Kansai International Workshop on Ultrashort-Pulse Ultrahigh-Power Lasers and Simulation for Laser–Plasma Interactions (Japan Atomic Energy Research Institute, Tokai, 1997), pp. 1–24.
  23. L. Lepetit, G. Cheriaux, and M. Joffre, “Linear techniques of phase measurement by femtosecond spectral interferometry for applications in spectroscopy,” J. Opt. Soc. Am. B 12, 2467–2474 (1995).
  24. S. Augst, D. Strickland, D. D. Meyerhofer, S. L. Chin, and J. H. Eberly, “Tunneling ionization of noble gases in a high-intensity laser field,” Phys. Rev. Lett. 63, 2212 (1989).
  25. W. K. Burns, Robert P. Moeller, and Chin-lin Chen, “Depolarization in a single-mode optical fiber,” J. Lightwave Technol. LT-1, 44–49 (1983).
  26. A. W. Snyder and J. D. Love, Optical Waveguide Theory (Kluwer Academic, Dordrecht, The Netherlands, 1983).
  27. K. Y. Kim, I. Alexeev, J. Fan, E. Parra, and H. M. Milchberg, “Plasma waveguides: addition of end funnels and generation in clustered gases,” in Advanced Accelerator Concepts, Tenth Workshop, C. E. Clayton and P. Muggli, eds. (American Institute of Physics, Melville, N.Y., 2002), pp. 646–653.

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