The Effect of Ion Motion on Laser-Driven Plasma Wake in Capillary
Author(s): ZHOU Suyun, CHEN Hui, LI Yanfang, School of Material and Electromechanical Engineering, Jiangxi Science and Technology Normal University, Department of Physics, Nanchang University
Pages: 86-89
Year: 2016 Issue: 1
Journal: Plasma Science and Technology
Keyword: plasma wake; ion motion; capillary;
Abstract: The effect of ion motion in capillary-guided laser-driven plasma wake is investigated through rebuilding a two-dimensional analytical model. It is shown that laser pulse with the same power can excite more intense wakefield in the capillary of a smaller radius. When laser intensity exceeds a critical value, the effect of ion motion reducing the wakefield rises, which becomes significant with a decrease of capillary radius. This phenomenon can be attributed to plasma ions in smaller capillary obtaining more energy from the plasma wake. The dependence of the difference value between maximal scalar potential of wake for two cases of ion rest and ion motion on the radius of the capillary is discussed.
Pages: 86-89
Year: 2016 Issue: 1
Journal: Plasma Science and Technology
Keyword: plasma wake; ion motion; capillary;
Abstract: The effect of ion motion in capillary-guided laser-driven plasma wake is investigated through rebuilding a two-dimensional analytical model. It is shown that laser pulse with the same power can excite more intense wakefield in the capillary of a smaller radius. When laser intensity exceeds a critical value, the effect of ion motion reducing the wakefield rises, which becomes significant with a decrease of capillary radius. This phenomenon can be attributed to plasma ions in smaller capillary obtaining more energy from the plasma wake. The dependence of the difference value between maximal scalar potential of wake for two cases of ion rest and ion motion on the radius of the capillary is discussed.
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