外文题目: Direct acceleration of electrons by a CO2 laser in a curved plasma waveguide
作者: Yi, Longqing; Pukhov, Alexander; Shen, Baifei
刊名: Sci Rep
年: 2016 卷: 6 文章编号：28147
英文关键词:

BEAMS; PULSES; ENERGY; DIFFRACTION; PHYSICS; PROTON
英文摘要:
Laser plasma interaction with micro-engineered targets at relativistic intensities has been greatly promoted by recent progress in the high contrast lasers and the manufacture of advanced micro- and nano-structures. This opens new possibilities for the physics of laser-matter interaction. Here we propose a novel approach that leverages the advantages of high-pressure CO2 laser, laser-waveguide interaction, as well as micro- engineered plasma structure to accelerate electrons to peak energy greater than 1 GeV with narrow slice energy spread (similar to 1%) and high overall efficiency. The acceleration gradient is 26 GV/m for a 1.3 TW CO2 laser system. The micro- bunching of a long electron beam leads to the generation of a chain of ultrashort electron bunches with the duration roughly equal to half-laser-cycle. These results open a way for developing a compact and economic electron source for diverse applications.


文献类型: 期刊论文
正文语种: English
收录类别: SCI
DOI: 10.1038/srep28147


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