Characterization of relativistic electrons generated by a cone guiding laser pulse

We demonstrated the interaction of a gold cone target with a femto second（fs） laser pulse above the relativistic intensity of 1.37×10 18 μm 2 W/cm 2.Relativistic electrons with energy above 2 MeV were observed.A 25%-40% increase of the electron temperature is achieved compared to the case when a pla...

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Published inChinese physics B Vol. 21; no. 5; pp. 1 - 5
Main Author 刘红杰 谷渝秋 周维民 余金清 朱斌 吴玉迟 单连强 温贤伦 李芳 钱凤 曹磊峰 张保汉 郑志坚
Format Journal Article
LanguageEnglish
Published 01.05.2012
Subjects
Electron temperature
Gold
Laser beams
Lasers
Magnetic fields
Planes
Simulation
光脉冲产生
准静态磁场
引导
毫微微秒
激光脉冲
电子温度
相对论电子
表征
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ISSN1674-1056
2058-3834
1741-4199
DOI10.1088/1674-1056/21/5/055207

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Summary:We demonstrated the interaction of a gold cone target with a femto second（fs） laser pulse above the relativistic intensity of 1.37×10 18 μm 2 W/cm 2.Relativistic electrons with energy above 2 MeV were observed.A 25%-40% increase of the electron temperature is achieved compared to the case when a plane gold target is used.The electron temperature increase results from the guiding of the laser beam at the tip and the intense quasistatic magnetic field in the cone geometry.The behavior of the relativistic electrons is verified in our 2D-PIC simulations.
Bibliography:Liu Hong-Jie ,Gu Yu-Qiu,Zhou Wei-Min,Yu Jin-Qing ,Zhu Bin ,Wu Yu-Chi,Shan Lian-Qiang,Wen Xian-Lun ,Li Fang,Qian Feng ,Cao Lei-Feng,Zhang Bao-Han ,and Zheng Zhi-Jiana a） Laser Fusion Research Center,China Academy of Engineering Physics,Mianyang 621900,China b） National Key Laboratory of Plasma Physics,Mianyang 621900,China c） College of Optoelectronic Engineering,Chongqing University,Chongqing 400044,China
We demonstrated the interaction of a gold cone target with a femto second（fs） laser pulse above the relativistic intensity of 1.37×10 18 μm 2 W/cm 2.Relativistic electrons with energy above 2 MeV were observed.A 25%-40% increase of the electron temperature is achieved compared to the case when a plane gold target is used.The electron temperature increase results from the guiding of the laser beam at the tip and the intense quasistatic magnetic field in the cone geometry.The behavior of the relativistic electrons is verified in our 2D-PIC simulations.
relativistic electrons, gold cone, guiding laser, electron temperature
11-5639/O4
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/21/5/055207