Multi-GeV Electron Beams from Capillary-Discharge-Guided Subpetawatt Laser Pulses in the Self-Trapping Regime
Lawrence Berkeley National Laboratory · University of California, Berkeley
Abstract
Multi-GeV electron beams with energy up to 4.2 GeV, 6% rms energy spread, 6 pC charge, and 0.3 mrad rms divergence have been produced from a 9-cm-long capillary discharge waveguide with a plasma density of ≈7×10¹⁷ cm⁻³, powered by laser pulses with peak power up to 0.3 PW. Preformed plasma waveguides allow the use of lower laser power compared to unguided plasma structures to achieve the same electron beam energy. A detailed comparison between experiment and simulation indicates the sensitivity in this regime of the guiding and acceleration in the plasma structure to input intensity, density, and near-field laser mode profile.
Citation impact
- FWCI
- 149.22
- Percentile
- 100%
- References
- 27
Authors
13- WLWim LeemansCorresponding
Lawrence Berkeley National Laboratory, University of California, Berkeley
- AJA. J. Gonsalves
Lawrence Berkeley National Laboratory
- HMHann-Shin Mao
Lawrence Berkeley National Laboratory
- KNK. Nakamura
Lawrence Berkeley National Laboratory
- CBC. Benedetti
Lawrence Berkeley National Laboratory
Topics & keywords
- Trapping
- Electron
- Atomic physics
- Laser
- Capillary action
- Materials science
- Physics
- Nuclear physics
- Affordable and clean energy