Experimental demonstration of 7-femtosecond electron timing fluctuation in laser wakefield acceleration. (1st March 2022)

• Record Type: Journal Article
• Authors: Huang, Kai; Jin, Zhan; Nakanii, Nobuhiko; Hosokai, Tomonao; Kando, Masaki
• Is Part Of: Applied physics express. Volume 15:Number 3(2022)
• Publication Date: 2022-03-01
• Subjects: laser -- electron acceleration -- EO sampling; Physics -- Periodicals; Technology -- Periodicals; 621.05
• DOI: 10.35848/1882-0786/ac5237
• Languages: English
• ISSNs: 1882-0778

Abstract

Abstract: 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 μ m 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.