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Characterization of relativistic electrons generated by a cone guiding laser pulse |
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| Authors: | 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-Jian |
| Affiliation: | [1]Laser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, China [2]National Key Laboratory of Plasma Physics, Mianyang 621900, China [3]College of Optoeleetronic Engineering, Chongqing University, Chongqing 400044, China |
| Abstract: | 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. |
| Keywords: | relativistic electrons gold cone guiding laser electron temperature |
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