Polychromatic x-ray production in helium from a femtosecond high-intensity laser system

Kim Ta Phuoc 1 Antoine Rousse 1 L. Notebaert 1 M. Pittman 1 Jean-Philippe Rousseau 1 Victor Malka 1 S. Fritzler 1 Stéphane Sebban 1 Philippe Balcou 1 D. Hulin 1 J.R. Marques 2 P. G. David 2
1 LOA - Laboratoire d'optique appliquée
2 LULI - Laboratoire pour l'utilisation des lasers intenses
Abstract : Polychromatic x-ray radiation has been produced during the relativistic interaction of a 50-TW femtosecond laser with a helium gas jet. We have characterized the spectrum and the angular distribution of the x-ray emission as well as its dependency on the laser polarization and on the plasma electronic density. We have observed a broad continuous spectrum peaking at 0.15 keV with a significant tail up to 2 keV. The radiation was fairly collimated.
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https://hal-polytechnique.archives-ouvertes.fr/hal-00521140
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Submitted on : Saturday, September 25, 2010 - 10:34:44 PM
Last modification on : Monday, October 21, 2019 - 4:00:05 PM

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Kim Ta Phuoc, Antoine Rousse, L. Notebaert, M. Pittman, Jean-Philippe Rousseau, et al.. Polychromatic x-ray production in helium from a femtosecond high-intensity laser system. Journal of the Optical Society of America. B, Optical Physics, The Society, 2003, 20 (1), pp.221-223. ⟨10.1364/JOSAB.20.000221⟩. ⟨hal-00521140⟩

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