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

Year: 2002

Authors: Giulietti D., Galimberti M., Giulietti A., Gizzi LA., Numico R., Tomassini P., Borghesi M., Malka V., Fritzler S., Pittman M., Phouc KT., Pukhov A.

Autors Affiliation: CNR, Area Ric, IPCF, Intense Laser Irradiat Lab, I-56124 Pisa, Italy;
Queens Univ Belfast, Dept Pure & Appl Phys, Belfast BT7 1NN, Antrim North Ireland;
Lab Utilisat Lasers Intenses, Palaiseau, France,
ENSTA, Lab Opt Appl, Palaiseau, France;
Max Planck Inst Quantum Opt, Garching, Germany;
Univ Pisa, Dipartimento Fis, Unita INFM, Pisa, Italy

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. (C) 2002 American Institute of Physics.


Volume: 9 (9)      Pages from: 3655  to: 3658

KeyWords: accelleration; channels; light
DOI: 10.1063/1.1498116

Citations: 66
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