Experimental Demonstration of Laser Guiding and Wakefield Acceleration in a Curved Plasma Channel

Curved plasma channels have been proposed to guide intense lasers for various applications, such as x-ray laser emission, compact synchrotron radiation, and multistage laser wakefield acceleration [e.g. J. Luo et al., Phys. Rev. Lett. 120, 154801 (2018)PRLTAO0031-900710.1103/PhysRevLett.120.154801]....

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Bibliographic Details
Published in:Physical review letters 2023-05, Vol.130 (21), p.215001-215001, Article 215001
Main Authors: Zhu, Xinzhe, Li, Boyuan, Liu, Feng, Li, Jianlong, Bi, Zewu, Ge, Xulei, Deng, Hongyang, Zhang, Ziyang, Cui, Peilin, Lu, Lin, Yan, Wenchao, Yuan, Xiaohui, Chen, Liming, Cao, Qiang, Liu, Zhenyu, Sheng, Zhengming, Chen, Min, Zhang, Jie
Format: Article
Language:English
Subjects:
Acceleration
Electrons
Heart Rate
Lasers
Plasma
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Summary:Curved plasma channels have been proposed to guide intense lasers for various applications, such as x-ray laser emission, compact synchrotron radiation, and multistage laser wakefield acceleration [e.g. J. Luo et al., Phys. Rev. Lett. 120, 154801 (2018)PRLTAO0031-900710.1103/PhysRevLett.120.154801]. Here, a carefully designed experiment shows evidences of intense laser guidance and wakefield acceleration in a centimeter-scale curved plasma channel. Both experiments and simulations indicate that when the channel curvature radius is gradually increased and the laser incidence offset is optimized, the transverse oscillation of the laser beam can be mitigated, and the stably guided laser pulse excites wakefields and accelerates electrons along the curved plasma channel to a maximum energy of 0.7 GeV. Our results also show that such a channel exhibits good potential for seamless multistage laser wakefield acceleration.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.130.215001