维普中文期刊产品整合服务

Electron pulse train accelerated by a linearly polarized Laguerre-Gaussian laser beam

查看全文 作　　者：Yin [1,2]Shi;David [2]RBlackman;Ping [3]Zhu;Alexey [2]Arefiev 高影响力作者 机构地区：[1]Department of Plasma Physics and Fusion Engineering,University of Science and Technology of China,Hefei,China;[2]Department of Mechanical and Aerospace Engineering,University of California San Diego,La Jolla,CA,USA;[3]Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai,China高影响力机构 出　　处：《High Power Laser Science and Engineering》索引2022年第10卷第6期,共13页高影响力期刊 基　　金：Y.S. acknowledges the support by USTC Research Funds of the Double First-Class Initiative, Strategic Priority Research Program of CAS (Grant No. XDA25010200);CAS Project for Young Scientists in Basic Research (Grant No. YSBR060);Newton International Fellows Alumni follow-on funding;D.R.B. and A.A. acknowledge the support by the National Science Foundation (Grant No. PHY 1903098)。 摘　　要：A linearly polarized Laguerre–Gaussian(LP-LG)laser beam with a twist index l=−1 has field structure that fundamentally differs from the field structure of a conventional linearly polarized Gaussian beam.Close to the axis of the LP-LG beam,the longitudinal electric and magnetic fields dominate over the transverse components.This structure offers an attractive opportunity to accelerate electrons in vacuum.It is shown,using three-dimensional particle-in-cell simulations,that this scenario can be realized by reflecting an LP-LG laser off a plasma with a sharp density gradient.The simulations indicate that a 600 TW LP-LG laser beam effectively injects electrons into the beam during the reflection.The electrons that are injected close to the laser axis experience a prolonged longitudinal acceleration by the longitudinal laser electric field.The electrons form distinct monoenergetic bunches with a small divergence angle.The energy in the most energetic bunch is 0.29 GeV.The bunch charge is 6 pC and its duration is approximately 270 as.The divergence angle is just 0.57°(10 mrad).By using a linearly polarized rather than a circularly polarized Laguerre–Gaussian beam,our scheme makes it easier to demonstrate the electron acceleration experimentally at a high-power laser facility. 关 键 词：laser driven electron acceleration laser-plasma interaction Laguerre-Gaussian lasers
相关文献

参考文献(55)

引证文献(2)

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1　渝公网安备 50019002500403号　违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费