Laser ion acceleration via control of the near-critical density target.
Laser ion acceleration via control of the near-critical density target.
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DOI：
10.1103/physreve.77.016401
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发表时间：
2008-01
期刊：
影响因子：
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通讯作者：
A. Yogo;H. Daido;S. V. Bulanov;K. Nemoto;Y. Oishi;T. Nayuki;T. Fujii;K. Ogura;S. Orimo;A. Sagisaka;Jl Ma;T. Esirkepov;M. Mori;M. Nishiuchi;A. Pirozhkov;S. Nakamura;A. Noda;H. Nagatomo;T. Kimura;T. Tajima
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文献类型：
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作者：
A. Yogo;H. Daido;S. V. Bulanov;K. Nemoto;Y. Oishi;T. Nayuki;T. Fujii;K. Ogura;S. Orimo;A. Sagisaka;Jl Ma;T. Esirkepov;M. Mori;M. Nishiuchi;A. Pirozhkov;S. Nakamura;A. Noda;H. Nagatomo;T. Kimura;T. Tajima
强度为 10(13) W/cm(2) 的持续时间控制放大自发发射用于将 7.5 微米厚的聚酰亚胺箔转化为近临界等离子体，其中 p 偏振、45-fs、10(19) -Wcm(2) 激光脉冲产生 3.8-MeV 质子，以目标法线与 45 度激光传播方向之间的某个角度发射。细胞内粒子模拟表明，有效的质子加速是由于在目标后侧产生准静态磁场，并通过磁压力感应和维持电荷分离静电场。
Duration-controlled amplified spontaneous emission with an intensity of 10(13) W/cm(2) is used to convert a 7.5-microm -thick polyimide foil into a near-critical plasma, in which the p -polarized, 45-fs , 10(19) -Wcm (2) laser pulse generates 3.8-MeV protons, emitted at some angle between the target normal and the laser propagation direction of 45 degrees . Particle-in-cell simulations reveal that the efficient proton acceleration is due to the generation of a quasistatic magnetic field on the target rear side with magnetic pressure inducing and sustaining a charge separation electrostatic field.