Phys. Rev. Lett. 67, 3523 - 3526 (1991)Measurement of femtosecond ionization dynamics of atmospheric density gases by spectral blueshifting |
Wm. M. Wood, C. W. Siders, and M. C. Downer
Department of Physics, University of Texas at Austin, Austin, Texas 78712
Received 5 August 1991
The new plasma diagnostic technique of spectral blueshifting of femtosecond pulses is used for the first time to analyze quantitatively the ionization of noble gases under the influence of intense, femtosecond illumination. The two processes of strong-field tunneling ionization and electron impact ionization are found to play competing roles on these time scales.
©1991 The American Physical Society
URL: http://link.aps.org/abstract/PRL/v67/p3523
DOI: 10.1103/PhysRevLett.67.3523
PACS: 52.40.Nk, 32.80.-t, 34.80.Dp, 52.25.Jm
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