中国物理B ›› 2009, Vol. 18 ›› Issue (12): 5395-.doi: 10.1088/1674-1056/18/12/045

• PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES • 上一篇    下一篇

Energetic-ion generation by the combination of laser pressure and Coulomb explosion

金张英, 沈百飞, 张晓梅, 王凤超, 吉亮亮   

  1. State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, The Chinese Academy of Sciences, Shanghai 201800, China
  • 收稿日期:2008-12-04 修回日期:2009-02-20 出版日期:2009-12-20 发布日期:2009-12-20
  • 基金资助:
    Project supported by National Natural Science Foundation of China (Grant Nos 10675155 and 10834008), the 973 Program (Grant No 2006CB806004), and Japan--Korea--China Cooperative Project on High Energy Density Sciences for Laser Fusion Energy.

Energetic-ion generation by the combination of laser pressure and Coulomb explosion

Jin Zhang-Ying(金张英)†, Shen Bai-Fei(沈百飞),Zhang Xiao-Mei(张晓梅), Wang Feng-Chao(王凤超), and Ji Liang-Liang(吉亮亮)   

  1. State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, The Chinese Academy of Sciences, Shanghai 201800, China
  • Received:2008-12-04 Revised:2009-02-20 Online:2009-12-20 Published:2009-12-20
  • Supported by:
    Project supported by National Natural Science Foundation of China (Grant Nos 10675155 and 10834008), the 973 Program (Grant No 2006CB806004), and Japan--Korea--China Cooperative Project on High Energy Density Sciences for Laser Fusion Energy.

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摘要： A scheme of generating energetic ions by the interaction of an ultrahigh-intensity laser pulse and a thin solid foil is studied. The combination of the effects of radiation pressure and Coulomb explosion makes the ion acceleration more effective. The maximum ion velocity variation with time is predicted theoretically while the temporal evolution of the electrostatic field due to the Coulomb explosion is taken into consideration. Two-dimensional particle-in-cell simulations are done to verify the theory.

Abstract: A scheme of generating energetic ions by the interaction of an ultrahigh-intensity laser pulse and a thin solid foil is studied. The combination of the effects of radiation pressure and Coulomb explosion makes the ion acceleration more effective. The maximum ion velocity variation with time is predicted theoretically while the temporal evolution of the electrostatic field due to the Coulomb explosion is taken into consideration. Two-dimensional particle-in-cell simulations are done to verify the theory.

Key words: interaction of ultrastrong laser pulses and plasmas, ion acceleration, Coulomb explosion

中图分类号:  (Laser-plasma acceleration of electrons and ions)

  • 52.38.Kd
52.65.Rr (Particle-in-cell method)