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Schematics of the various nanolayered targets: (a) planar (NT), (b) canonical (CNT), and (c) oblique (ONT), a p-polarized laser pulse introduces along the axis from the left of the simulation box, the targets with wide of the plasma layers and wide of the interlayer vacuum spacing.
Field energy density () at the time of . (a) NT corresponding to the CNT with open angle of 180°, (b) CNT with open angle of 60°, (c) ONT.
(a) Coupling efficiencies between laser and hot electrons (0.5–10.0 MeV) of CNT and ONT; for the ONT, the open angle is twice the angle between the laser axis and the oblique side. (b) Hot electron distributions at different open angles for both ONT and CNT. Hot electrons with energy of 0.5–10 MeV through the rear of the target are included. The open angle of the ONTs is twice the angle between the laser axis and the oblique side. The relation of open angle and incident angle is , where and are incident angle and open angle, respectively.
Distributions of hot electrons in the transverse direction for NT (red curve) and CNT with open angle of 75° (black curve), only the hot electrons (0.5–10.0 MeV) propagating through the rear of the targets are included.
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