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Plasma density determination by transmission of laser-generated surface harmonics

P. Gibbon 1 D. Altenbernd 1 U. Teubner 1 E. Förster 1 Patrick Audebert 2 Jean-Paul Geindre 2 Jean-Claude Gauthier 2 André Mysyrowicz 3
1 Abteilung Röntgenoptik
2 LULI - Laboratoire pour l'utilisation des lasers intenses
3 LOA - Laboratoire d'optique appliquée
Abstract : A diagnostic is proposed for determining the density of laser-generated plasmas. The scheme exploits surface harmonics generated by short, intense laser pulses reflected from an overdense plasma layer. At sufficiently high intensities (Iλ2>1018 W cm-2), the reflected spectrum contains harmonics well above the plasma frequency, corresponding to the maximum plasma density. The transmitted spectrum, on the other hand, exhibits a low-frequency cutoff for ω<ωp, offering a simple means of deducing the plasma density.
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https://hal-polytechnique.archives-ouvertes.fr/hal-00465609
Contributor : Aurélien Houard <>
Submitted on : Saturday, March 20, 2010 - 12:18:02 AM
Last modification on : Friday, March 5, 2021 - 3:01:23 PM

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P. Gibbon, D. Altenbernd, U. Teubner, E. Förster, Patrick Audebert, et al.. Plasma density determination by transmission of laser-generated surface harmonics. Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, American Physical Society, 1997, 55 (6), pp.R6352-R6355. ⟨10.1103/PhysRevE.55.R6352⟩. ⟨hal-00465609⟩

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