量研学術機関リポジトリ「QST-Repository」は、国立研究開発法人 量子科学技術研究開発機構に所属する職員等が生み出した学術成果（学会誌発表論文、学会発表、研究開発報告書、特許等）を集積しインターネット上で広く公開するサービスです。 Welcome to QST-Repository where we accumulates and discloses the academic research results(Journal Publications, Conference presentation, Research and Development Report, Patent, etc.) of the members of National Institutes for Quantum Science and Technology.
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We report on an experimental investigation of the jitter of electrons from laser wakefield acceleration. The relative arrival timings of the generated
electron bunches were detected via electro-optic spatial decoding on the coherent transition radiation emitted when the electrons pass through a
100 μm thick stainless steel foil. The standard deviation of electron timing was measured to be 7 fs at a position outside the plasma. Preliminary
analysis suggested that the electron bunches might have durations of a few tens of femtoseconds. This research demonstrated the potential of
laser wakefield acceleration for femtosecond pump–probe studies.
Experimental demonstration of 7-femtosecond electron timing fluctuation in laser wakefield acceleration
