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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Vol. 15, Iss. 1 — Jan. 1, 1998
  • pp: 186–192

Spectral-spatial measurements of fundamental and third-harmonic light of intense 25-fs laser pulses focused in a gas cell

J. Peatross, S. Backus, J. Zhou, M. M. Murnane, and H. C. Kapteyn  »View Author Affiliations

JOSA B, Vol. 15, Issue 1, pp. 186-192 (1998)

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We present spatially and spectrally resolved measurements of light emerging from the focus of an intense 25-fs laser pulse in gaseous media. The pulses are focused inside a chamber backfilled with either argon or air to nominal vacuum intensities of up to 5×1015 W/cm2, far in excess of that necessary for ionization. We have recorded spectral-spatial maps for various pressures and pulse energies and have compared the results of argon and air. This survey is done in the regime where 0.1% of the laser light is converted into the third harmonic, which is of practical importance since it is the largest conversion efficiency measured to date while maintaining such a short pulse duration. These measurements are, to our knowledge, the first of their type and are performed with a laser beam of very high spatial quality. The dynamics of an intense laser focusing into a gas cell is complicated, and these measurements provide a way to compare numerical simulations with an array of experimental information. The experiments also determine the conditions for optimal third-harmonic spatial beam quality in this regime.

© 1998 Optical Society of America

OCIS Codes
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.5530) Nonlinear optics : Pulse propagation and temporal solitons
(190.7110) Nonlinear optics : Ultrafast nonlinear optics
(320.7120) Ultrafast optics : Ultrafast phenomena

J. Peatross, S. Backus, J. Zhou, M. M. Murnane, and H. C. Kapteyn, "Spectral-spatial measurements of fundamental and third-harmonic light of intense 25-fs laser pulses focused in a gas cell," J. Opt. Soc. Am. B 15, 186-192 (1998)

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  1. S. Backus, J. Peatross, E. Zeek, A. Rundquist, G. Taft, M. M. Murnane, and H. C. Kapteyn, “16 femtosecond, 1 μJ ultraviolet pulses generated by third-harmonic conversion in air,” Opt. Lett. 21, 665 (1996). [CrossRef] [PubMed]
  2. S. Backus, J. Peatross, C. P. Huang, M. M. Murnane, and H. C. Kapteyn, “Ti:sapphire amplifier producing millijoule-level, 21-fs pulses at 1 kHz,” Opt. Lett. 20, 2000 (1995). [CrossRef] [PubMed]
  3. J. F. Ward and G. H. C. New, “Optical third harmonic generation in gases by a focused laser beam,” Phys. Rev. 185, 57 (1969). [CrossRef]
  4. G. C. Bjorklund, “Effects of focusing on third-order nonlinear processes in isotropic media,” IEEE J. Quantum Electron. QE-11, 287 (1975). [CrossRef]
  5. R. Eramo and M. Matera, “Third-harmonic generation in positively dispersive gases with a novel cell,” Appl. Opt. 33, 1691 (1994). [CrossRef] [PubMed]
  6. D. S. Bethune and C. T. Rettner, “Optical harmonic generation in nonuniform gaseous media with application to frequency tripling in free-jet expansions,” IEEE J. Quantum Electron. QE-23, 1348 (1987). [CrossRef]
  7. A. L’Huillier, L. A. Lompre, M. Ferray, S. F. Li, G. Mainfray, and C. Manus, “Third-harmonic generation in xenon in a pulsed jet and a gas cell,” Europhys. Lett. 5, 601 (1988). [CrossRef]
  8. M. S. Malcuit, R. W. Boyd, W. V. Davis, and K. Rzazewski, “Anomalies in optical harmonic generation using high-intensity laser radiation,” Phys. Rev. A 41, 3822 (1990). [CrossRef] [PubMed]
  9. C. W. Siders, N. C. Turner III, M. C. Downer, A. Babine, A. Stepanov, and A. M. Sergeev, “Blueshifted third harmonic generation and correlated self-guiding during ultrafast barrier suppression ionization of subatmospheric density noble gases,” J. Opt. Soc. Am. B 13, 330 (1996). [CrossRef]
  10. E. Esarey, P. Sprangle, M. Pilloff, and J. Krall, “Theory and group velocity of ultrashort, tightly-focused laser pulses,” J. Opt. Soc. Am. B 12, 1695 (1995). [CrossRef]
  11. 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 (1991). [CrossRef] [PubMed]
  12. T. Auguste, P. Monot, L.-A. Lompre, G. Mainfray, and C. Manus, “Defocusing effects of a picosecond terawatt laser pulse in an underdense plasma,” Opt. Commun. 89, 145 (1992). [CrossRef]
  13. B. M. Penetrante, J. N. Bardsley, W. M. Wood, C. W. Siders, and M. C. Downer, “Ionization-induced frequency shifts in intense femtosecond laser pulses,” J. Opt. Soc. Am. B 9, 2032 (1992). [CrossRef]
  14. S. C. Rae and K. Burnett, “Detailed simulations of plasma-induced spectral blueshifting,” Phys. Rev. A 46, 1084 (1992). [CrossRef] [PubMed]
  15. S. P. Le Blanc, R. Sauerbrey, S. C. Rae, and K. Burnett, “Spectral blue shifting of a femtosecond laser pulse propagating through a high-pressure gas,” J. Opt. Soc. Am. B 10, 1801 (1993). [CrossRef]
  16. S. C. Rae, “Ionization-induced defocusing of intense laser pulses in high-pressure gases,” Opt. Commun. 97, 25 (1993). [CrossRef]
  17. S. C. Rae, “Spectral blueshifting and spatial defocusing of intense laser pulses in dense gases,” Opt. Commun. 104, 330 (1994). [CrossRef]
  18. E. E. Fill, “Focusing limits of ultrashort laser pulses: analytical theory,” J. Opt. Soc. Am. B 11, 2241 (1994). [CrossRef]
  19. E. T. J. Nibbering, P. F. Curley, G. Grillon, B. S. Prade, M. A. Franco, F. Salin, and A. Mysyrowicz, “Conical emission from self-guided femtosecond pulses in air,” Opt. Lett. 21, 62 (1996). [CrossRef] [PubMed]
  20. J. Zhou, C.-P. Huang, M. M. Murnane, and H. C. Kapteyn, “Amplification of 26-fs, 2-TW pulses near the gain-narrowing limit in Ti:sapphire,” Opt. Lett. 20, 64 (1995). [CrossRef] [PubMed]
  21. 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). [CrossRef] [PubMed]
  22. P. B. Corkum and C. Rolland, “Self-focusing and continuum generation in gases,” in The Supercontinuum Laser Source, R. R. Alfano, ed. (Springer-Verlag, New York, 1989), pp. 318–336.
  23. A. E. Siegman, Lasers (University Science, Mill Valley, Calif., 1986), pp. 647–648.

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