Hybrid capillary discharge waveguide for laser wakefield acceleration

Qin, Zhiyong and Li, Wentao and Liu, Jiansheng and Liu, Jiaqi and Yu, Changhai and Wang, Wentao and Qi, Rong and Zhang, Zhijun and Fang, Ming and Feng, Ke and Wu, Ying and Ke, Lintong and Chen, Yu and Wang, Cheng and Li, Ruxin and Xu, Zhizhan (2018) Hybrid capillary discharge waveguide for laser wakefield acceleration. Physics of Plasmas, 25 (7). ISSN 1070-664X (https://doi.org/10.1063/1.5025847)

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Abstract

A hybrid capillary discharge waveguide formed by injecting low-pressure hydrogen (< 3.8 Torr) into a pure ablative capillary is presented to supply the stable guiding for multi-GeV laser wakefield acceleration. The injected low-pressure gas only provides the seed plasma for ablative discharge breakdown, like the adsorbed gas in the inner wall of the ablative capillary. With this hybrid capillary, a stable discharge with low jitter (~ 5 ns) can be achieved in a simple way, and the plasma density inside can also be controlled in a range of ~0.7 x 1018cm-3-1.2 x 1018cm-3 within a 150-ns plasma channel temporal window. Furthermore, the hybrid capillary can also be easily extended to a longer length by adding multiple segments, and femtosecond laser pulses can be well guided both in the single and multiple segments mode. With these advantages, the hybrid capillary may provide an attractive plasma channel for multi-GeV-scale laser wakefield acceleration.

  • Item type:Article
    ID code:64760
    Dates:
    Date
    Event
    3 July 2018
    Published
    15 June 2018
    Accepted
    Notes:This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. The following article appeared in Qin, Z, Li, W, Liu, J, Liu, J, Yu, C, Wang, W, Qi, R, Zhang, Z, Fang, M, Feng, K, Wu, Y, Ke, L, Chen, Y, Wang, C, Li, R & Xu, Z 2018, 'Hybrid capillary discharge waveguide for laser wakefield acceleration' Physics of Plasmas, vol 25, no. 7 and may be found at https://doi.org/10.1063/1.5025847.
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:10 Jul 2018 13:40
    Last modified:11 Nov 2024 12:03
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/64760
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