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Betatron radiation polarization control by using an off-axis ionization injection in a laser wakefield acceleration
- Source :
- Optics Express. 28:29927
- Publication Year :
- 2020
- Publisher :
- Optica Publishing Group, 2020.
-
Abstract
- Tunable X-ray sources from a laser-driven wakefield have wide applications. However, due to the difficulty of electron dynamics control, currently the tunability of laser wakefield–based X-ray sources is still difficult. By using three-dimensional particle-in-cell simulations, we propose a scheme to realize controllable electron dynamics and X-ray radiation. In the scheme, a long wavelength drive pulse excites a plasma wake and an off-axis laser pulse with a short wavelength co-propagates with the drive pulse and ionizes the K-shell electrons of the background high-Z gas. The electrons can be injected in the wakefield with controllable transverse positions and residual momenta. These injected electrons experience controllable oscillations in the wake, leading to tunable radiations both in intensity and polarization.
- Subjects :
- Physics
business.industry
Physics::Optics
Synchrotron radiation
02 engineering and technology
Plasma
Electron
Radiation
021001 nanoscience & nanotechnology
Laser
Betatron
01 natural sciences
Atomic and Molecular Physics, and Optics
law.invention
Pulse (physics)
010309 optics
Optics
law
Ionization
0103 physical sciences
Physics::Accelerator Physics
0210 nano-technology
business
QC
Subjects
Details
- ISSN :
- 10944087
- Volume :
- 28
- Database :
- OpenAIRE
- Journal :
- Optics Express
- Accession number :
- edsair.doi.dedup.....72b959bd85585b824f84469c7b023730