title: Ultrashort electron pulses as a four-dimensional diagnosis of plasma dynamics.
authors.affiliation: Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China.
authors.forename: P F
authors.initials: PF
authors.lastname: Zhu
authors.forename: Z C
authors.initials: ZC
authors.lastname: Zhang
authors.forename: L
authors.initials: L
authors.lastname: Chen
authors.forename: R Z
authors.initials: RZ
authors.lastname: Li
authors.forename: J J
authors.initials: JJ
authors.lastname: Li
authors.forename: X
authors.initials: X
authors.lastname: Wang
authors.forename: J M
authors.initials: JM
authors.lastname: Cao
authors.forename: Z M
authors.initials: ZM
authors.lastname: Sheng
authors.forename: J
authors.initials: J
authors.lastname: Zhang