Imaging nanoscale spatial modulation of a relativistic electron beam with a MeV ultrafast electron microscope

Lu, Chao1,2; Jiang, Tao1,2; Liu, Shengguang1,2; Wang, Rui1,2; Zhao, Lingrong1,2; Zhu, Pengfei1,2; Liu, Yaqi3; Xu, Jun3; Yu, Dapeng3,4; Wan, Weishi5; Zhu, Yimei6,7; Xiang, Dao1,2,8; Zhang, Jie1,2

2018-03-12

10.1063/1.5023179

APPLIED PHYSICS LETTERS   影响因子和分区

0003-6951

1077-3118

An accelerator-based MeV ultrafast electron microscope (MUEM) has been proposed as a promising tool to the study structural dynamics at the nanometer spatial scale and the picosecond temporal scale. Here, we report experimental tests of a prototype MUEM where high quality images with nanoscale fine structures were recorded with a pulsed similar to 3MeV picosecond electron beam. The temporal and spatial resolutions of the MUEM operating in the single-shot mode are about 4 ps (FWHM) and 100 nm (FWHM), corresponding to a temporal-spatial resolution of 4 x 10(-19) sm, about 2 orders of magnitude higher than that achieved with state-of-the-art single-shot keV UEM. Using this instrument, we offer the demonstration of visualizing the nanoscale periodic spatial modulation of an electron beam, which may be converted into longitudinal density modulation through emittance exchange to enable production of high-power coherent radiation at short wave-lengths. Our results mark a great step towards single-shot nanometer-resolution MUEMs and compact intense x-ray sources that may have widespread applications in many areas of science. Published by AIP Publishing.

SCI ; EI

英语

NI期刊

其他

office of Science and Technology, Shanghai Municipal Government[16DZ2260200]

Physics

Physics, Applied

WOS:000428456800028

AMER INST PHYSICS

20181204917038

Electromagnetic wave emission ; Electron beams ; Electron microscopes ; Electrons ; Nanotechnology ; Structural dynamics

Structural Design:408 ; Electromagnetic Waves:711 ; Nanotechnology:761

PHYSICS

Web of Science

1.Shanghai Jiao Tong Univ, Sch Phys & Astron, Key Lab Laser Plasmas, Minist Educ, Shanghai 200240, Peoples R China
2.Shanghai Jiao Tong Univ, Collaborat Innovat Ctr IFSA CICIFSA, Shanghai 200240, Peoples R China
3.Peking Univ, Sch Phys, Beijing 100871, Peoples R China
4.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China
5.Shanghai Tech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China
6.Brookhaven Natl Lab, Div Condensed Matter Phys & Mat Sci, Upton, NY 11973 USA
7.SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA
8.Tsung Dao Lee Inst, Shanghai 200240, Peoples R China

Lu, Chao,Jiang, Tao,Liu, Shengguang,et al. Imaging nanoscale spatial modulation of a relativistic electron beam with a MeV ultrafast electron microscope[J]. APPLIED PHYSICS LETTERS,2018,112(11).

Lu, Chao.,Jiang, Tao.,Liu, Shengguang.,Wang, Rui.,Zhao, Lingrong.,...&Zhang, Jie.(2018).Imaging nanoscale spatial modulation of a relativistic electron beam with a MeV ultrafast electron microscope.APPLIED PHYSICS LETTERS,112(11).

Lu, Chao,et al."Imaging nanoscale spatial modulation of a relativistic electron beam with a MeV ultrafast electron microscope".APPLIED PHYSICS LETTERS 112.11(2018).