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Self-Injection and Acceleration of Monoenergetic Electron Beams from Laser Wakefield Accelerators in a Highly Relativistic Regime |
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| Authors: | H. Yoshitama T. Kameshima GU Yu-Qiu GUO Yi JIAO Chun-Ye LIU Hong-Jie PENG Han-Sheng TANG Chuan-Ming WANG Xiao-Dong WEN Xian-Lun WEN Tian-Shu WU Yu-Chi ZHANG Bao-Han ZHU Qi-Hua HUANG Xiao-Jun AN Wei-Min HUNG Wen-Hui TANG Chuan-Xiang LIN Yu-Zheng WANG Xiao-Dong CHEN Li-Ming H.Kotaki M.Kando K.Nakajima |
| Affiliation: | H. Yoshitama,T. Kameshima,GU Yu-Qiu,GUO Yi,JIAO Chun-Ye,LIU Hong-Jie,PENG Han-Sheng,TANG Chuan-Ming,WANG Xiao-Dong,WEN Xian-Lun,WEN Tian-Shu,WU Yu-Chi,ZHANG Bao-Han,ZHU Qi-Hua,HUANG Xiao-Jun,AN Wei-Min,HUNG Wen-Hui,TANG Chuan-Xiang,LIN Yu-Zheng,WANG Xiao-Dong,CHEN Li-Ming,H.~Kotaki,M.~Kando,K.~Nakajima |
| Abstract: | Self-injection and acceleration of monoenergetic electron beams from laser wakefield accelerators are first investigated in the highly relativistic regime, using 100TW class, 27fs laser pulses. Quasi-monoenergetic multi-bunched beams with energies as high as multi-hundredMeV are observed with simultaneous measurements of side-scattering emissions that indicate the formation of self-channelling and self-injection of electrons into a plasma wake, referred to as a `bubble'. The three-dimensional particle-in-cell simulations confirmed multiple self-injection of electron bunches into the bubble and their beam acceleration with gradient of 1.5GeV/cm. |
| Keywords: | 52.38.Kd')" >52.38.Kd 41.75.Jv 52.38.Hb ')" > 52.38.-r |
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