Efficient GeV ion generation by ultraintense circularly polarized laser pulse

被引：128

作者：

Zhang, Xiaomei ^{[1
]}

Shen, Baifei ^{[1
]}

Li, Xuemei ^{[1
]}

Jin, Zhangying ^{[1
]}

Wang, Fengchao ^{[1
]}

Wen, Meng ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, State Key Lab High Field Laser Phys, Shanghai 201800, Peoples R China

来源：

PHYSICS OF PLASMAS | 2007年 / 14卷 / 12期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1063/1.2817087

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

The interaction of an ultraintense circularly polarized laser pulse and a solid target is studied by one-dimensional particle-in-cell simulations. Ions at the front of the target are reflected by a moving quasisteady electrostatic field and obtain a relativistic velocity. At a laser intensity of 10(22) W/cm(2), almost half of the laser energy is transferred to ions and GeV ions are obtained. Effects of laser polarization state and target thickness on the laser energy conversion are investigated. It is found that a circularly polarized laser pulse can accelerate ions more efficiently than a linearly polarized laser pulse at the same laser and target parameters. A monoenergetic ion bunch is obtained for the ultrathin target, which is accelerated as a single entity. (c) 2007 American Institute of Physics.

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页数：6

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