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Collimated proton beam generation from ultraintense laser-irradiated hole target

  • X.H. Yang (a1), Y.Y. Ma (a1) (a2) (a3), F.Q. Shao (a1), H. Xu (a4), M.Y. Yu (a5) (a6), Y.Q. Gu (a2), T.P. Yu (a1), Y. Yin (a1), C.L. Tian (a1) and S. Kawata (a3)...


Collimated proton beams from laser interaction with a slab having a hole on its backside are investigated using particle-in-cell simulation. The hot target electrons driven by the laser expand rapidly into the hole. However, at the hole's corners the electrons are strongly compressed and an intense electron jet is emitted from each corner, tightly followed by the ions. The plasma jets focus and collimate along the axis of the hole and can propagate without divergence within the hole. The effect of the hole diameter on the collimated proton beam is considered.


Corresponding author

Address correspondence and reprint requests to: Y.Y. Ma, Department of Physics, National University of Defense Technology, Changsha 410073, China. E-mail:


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Collimated proton beam generation from ultraintense laser-irradiated hole target

  • X.H. Yang (a1), Y.Y. Ma (a1) (a2) (a3), F.Q. Shao (a1), H. Xu (a4), M.Y. Yu (a5) (a6), Y.Q. Gu (a2), T.P. Yu (a1), Y. Yin (a1), C.L. Tian (a1) and S. Kawata (a3)...


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