title: Note: Single-shot continuously time-resolved MeV ultrafast electron diffraction.
abstract: We have demonstrated single-shot continuously time-resolved MeV ultrafast electron diffraction using a static single crystal gold sample. An MeV high density electron pulse was used to probe the sample and then streaked by an rf deflecting cavity. The single-shot, high quality, streaked diffraction pattern allowed structural information within several picoseconds to be continuously temporally resolved with an approximately 200 fs resolution. The temporal resolution can be straightforwardly improved to 100 fs by increasing the streaking strength. We foresee that this system would become a powerful tool for ultrafast structural dynamics studies.
authors.affiliation: Department of Engineering Physics, Tsinghua University, Beijing 100084, China. lrk@mails.thu.edu.cn
authors.forename: Renkai
authors.initials: R
authors.lastname: Li
authors.forename: Wenhui
authors.initials: W
authors.lastname: Huang
authors.forename: Yingchao
authors.initials: Y
authors.lastname: Du
authors.forename: Lixin
authors.initials: L
authors.lastname: Yan
authors.forename: Qiang
authors.initials: Q
authors.lastname: Du
authors.forename: Jiaru
authors.initials: J
authors.lastname: Shi
authors.forename: Jianfei
authors.initials: J
authors.lastname: Hua
authors.forename: Huaibi
authors.initials: H
authors.lastname: Chen
authors.forename: Taibin
authors.initials: T
authors.lastname: Du
authors.forename: Haisheng
authors.initials: H
authors.lastname: Xu
authors.forename: Chuanxiang
authors.initials: C
authors.lastname: Tang
mesh_terms: D006046:Gold; D007834:Lasers; D046529:Microscopy, Electron, Transmission / Q000295:instrumentation* / Q000379:methods*; D013997:Time Factors
chemical_list: D006046:Gold