Enhanced surface acceleration of fast electrons by using sub-wavelength grating targets

Details Enhanced surface acceleration of fast electrons by using sub-wavelength grating targets Enhanced surface acceleration of fast electrons by using sub-wavelength grating targets

2010-03-13

arxiv.org/abs/1003.2668v1

Physics

Plasma Physics

14 pages, 4figures

Scientific paper

Surface acceleration of fast electrons in intense laser-plasma interaction is improved by using sub-wavelength grating targets. The fast electron beam emitted along the target surface was enhanced by more than three times relative to that by using planar target. The total number of the fast electrons ejected from the front side of target was also increased by about one time. The method to enhance the surface acceleration of fast electron is effective for various targets with sub-wavelength structured surface, and can be applied widely in the cone-guided fast ignition, energetic ion acceleration, plasma device, and other high energy density physics experiments.

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