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Phys. Rev. Lett. 73, 78 - 81 (1994)

Subpicosecond Thomson Scattering Measurements of Optically Ionized Helium Plasmas

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T. E. Glover, T. D. Donnelly, E. A. Lipman, A. Sullivan, and R. W. Falcone
Department of Physics, University of California at Berkeley, Berkeley, California 94720

 See Also: Erratum

Received 2 February 1994

We present the first subpicosecond time-resolved temperature measurements of plasmas produced by high-intensity optical ionization. Thomson scattering is used to measure electron and ion temperatures of helium plasmas created by 125 fs, 800 nm laser pulses focused to an intensity of 2 × 1017 W/cm2. We find that the electron temperature is accurately predicted by a tunneling ionization model. The measured ion temperature is consistent with direct heating by the laser pulse.


©1994 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevLett.73.78
DOI: 10.1103/PhysRevLett.73.78
PACS: 52.40.Nk, 52.25.Rv, 52.50.Jm

See Also

Erratum: T. E. Glover, T. D. Donnelly, E. A. Lipman, A. Sullivan, and R. W. Falcone, Subpicosecond Thomson Scattering Measurements of Optically Ionized Helium Plasmas, Phys. Rev. Lett. 73, 2939 (1994)

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