期刊
PHYSICAL REVIEW LETTERS
卷 86, 期 23, 页码 5274-5277出版社
AMERICAN PHYSICAL SOC
DOI: 10.1103/PhysRevLett.86.5274
关键词
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A novel approach for the generation of ultrabright attosecond electron bunches is proposed, based on acceleration in vacuum, by a short laser pulse. The laser-pulse profile is tailored such that the electrons are both focused and accelerated by the ponderomotive force of the light. Using time-averaged equations of motion, analytical criteria for optimal regime of acceleration are found. It is shown that for realistic laser parameters, a beam with up to 10(6) particles and normalized transverse and longitudinal emittances < 10(-8) m can be produced.
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