TY  - JOUR
AU  - Wang, Wei-Min
AU  - Sheng, Zheng-Ming
AU  - Gibbon, Paul
AU  - Chen, Li-Ming
AU  - Li, Yu-Tong
AU  - Zhang, Jie
TI  - Collimated ultrabright gamma rays from electron wiggling along a petawatt laser-irradiated wire in the QED regime
JO  - Proceedings of the National Academy of Sciences of the United States of America
VL  - 115
IS  - 40
SN  - 1091-6490
CY  - Washington, DC
PB  - National Acad. of Sciences
M1  - FZJ-2018-05446
SP  - 9911-9916
PY  - 2018
AB  - Even though bright X-rays below mega-electron volt photon energy can be obtained from X-ray free electron lasers and synchrotron radiation facilities, it remains a great challenge to generate collimated bright gamma-ray beams over 10 mega-electron volts. We propose a scheme to efficiently generate such beams from submicron wires irradiated by petawatt lasers, where electron accelerating and wiggling are achieved simultaneously. With significant quantum electrodynamics effects existing even with petawatt lasers, our full 3D simulations show that directional gamma rays can be generated with thousand-fold higher brilliance and thousand-fold higher photon energy than those from synchrotron radiation facilities. In addition, the photon yield efficiency approaches 10%, 100,000-fold higher than those typical from betatron radiation and Compton scattering based on laser-wakefield accelerators.
LB  - PUB:(DE-HGF)16
C6  - pmid:30224456
UR  - <Go to ISI:>//WOS:000446078700047
DO  - DOI:10.1073/pnas.1809649115
UR  - https://juser.fz-juelich.de/record/852518
ER  -