High-energy electron beam production by femtosecond laser interactions with exploding-foil plasmas

Danilo Giulietti 1 M. Galimberti 1 Antonio Giulietti 1 L. A. Gizzi 1 M. Borghesi 2 Philippe Balcou 3 Antoine Rousse 3 Jean-Philippe Rousseau 3
1 Intense Laser Irradiation Laboratory–IPCF
2 Department of Pure and Applied Physics [Belfast]
3 LOA - Laboratoire d'optique appliquée
Abstract : The interaction of an ultraintense, 30-fs laser pulse with a preformed plasma was investigated as a method of producing a beam of high-energy electrons. We used thin foil targets that are exploded by the laser amplified spontaneous emission preceding the main pulse. Optical diagnostics show that the main pulse interacts with a plasma whose density is well below the critical density. By varying the foil thickness, we were able to obtain a substantial emission of electrons in a narrow cone along the laser direction with a typical energy well above the laser ponderomotive potential. These results are explained in terms of wake-field acceleration.
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Submitted on : Tuesday, October 5, 2010 - 3:38:30 PM
Last modification on : Monday, October 21, 2019 - 4:00:15 PM

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Danilo Giulietti, M. Galimberti, Antonio Giulietti, L. A. Gizzi, M. Borghesi, et al.. High-energy electron beam production by femtosecond laser interactions with exploding-foil plasmas. Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, American Physical Society, 2001, 64 (1), pp.R015402. ⟨10.1103/PhysRevE.64.015402⟩. ⟨hal-00523538⟩

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