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Polarized Ultrashort Brilliant Multi-GeV γ Rays via Single-Shot Laser-Electron Interaction
- Source :
- Physical Review Letters
- Publication Year :
- 2020
- Publisher :
- American Physical Society (APS), 2020.
-
Abstract
- Generation of circularly polarized (CP) and linearly polarized (LP) $\ensuremath{\gamma}$ rays via the single-shot interaction of an ultraintense laser pulse with a spin-polarized counterpropagating ultrarelativistic electron beam has been investigated in nonlinear Compton scattering in the quantum radiation-dominated regime. For the process simulation, a Monte Carlo method is developed which employs the electron-spin-resolved probabilities for polarized photon emissions. We show efficient ways for the transfer of the electron polarization to the high-energy photon polarization. In particular, multi-GeV CP (LP) $\ensuremath{\gamma}$ rays with polarization of up to about 95% can be generated by a longitudinally (transversely) spin-polarized electron beam, with a photon flux meeting the requirements of recent proposals for the vacuum birefringence measurement in ultrastrong laser fields. Such high-energy, high-brilliance, high-polarization $\ensuremath{\gamma}$ rays are also beneficial for other applications in high-energy physics, and laboratory astrophysics.
- Subjects :
- Physics
Photon
Linear polarization
Astrophysics::High Energy Astrophysical Phenomena
Compton scattering
General Physics and Astronomy
Electron
Laser
Polarization (waves)
Research group K. Z. Hatsagortsyan – Division C. H. Keitel
Physics - Plasma Physics
law.invention
law
Photon polarization
Cathode ray
Atomic physics
Subjects
Details
- ISSN :
- 10797114 and 00319007
- Volume :
- 124
- Database :
- OpenAIRE
- Journal :
- Physical Review Letters
- Accession number :
- edsair.doi.dedup.....769b846dd7912cff9c24fabfed7eccd7