Production of ultracollimated bunches of multi-MeV electrons by 35 fs laser pulses propagating in exploding-foil plasmas

Danilo Giulietti 1 M. Galimberti 1 Antonio Giulietti 1 L. A. Gizzi 1 R. Numico 1 Pascale Tomassini 1 M. Borghesi 2 Victor Malka 3 S. Fritzler 3 M. Pittman 4 Kim Ta Phuoc 4 A. Pukhov 5
1 Intense Laser Irradiation Laboratory–IPCF
2 Department of Pure and Applied Physics [Belfast]
3 LULI - Laboratoire pour l'utilisation des lasers intenses
4 LOA - Laboratoire d'optique appliquée
5 MPQ - Max-Planck-Institut für Quantenoptik
Abstract : Very collimated bunches of high energy electrons have been produced by focusing super-intense femtosecond laser pulses in submillimeter under-dense plasmas. The density of the plasma, preformed with the laser exploding-foil technique, was mapped using Nomarski interferometry. The electron beam was fully characterized: up to 10^9 electrons per shot were accelerated, most of which in a beam of aperture below 10^−3 sterad, with energies up to 40 MeV. These measurements, which are well modeled by three-dimensional numerical simulations, validate a reliable method to generate ultrashort and ultracollimated electron bunches.
Keywords : exploding wires plasma light propagation electron beams plasma density plasma production particle beam bunching optical focusing light interferometry plasma diagnostics high-speed optical techniques plasma simulation electron sources particle beam diagnostics
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Journal articles
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https://hal-polytechnique.archives-ouvertes.fr/hal-00572539
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Submitted on : Tuesday, March 1, 2011 - 4:57:49 PM
Last modification on : Friday, November 22, 2019 - 4:06:09 PM

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Danilo Giulietti, M. Galimberti, Antonio Giulietti, L. A. Gizzi, R. Numico, et al.. Production of ultracollimated bunches of multi-MeV electrons by 35 fs laser pulses propagating in exploding-foil plasmas. Physics of Plasmas, American Institute of Physics, 2002, 9 (9), pp.3655. ⟨10.1063/1.1498116⟩. ⟨hal-00572539⟩

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