2019/08/26 by Han Xiao, H Xiao, M Chen +8 · 2 citations
Earth and Planetary Sciences · Physics and Astronomy · #Cathode ray #Chirp #Electron #High-pressure geophysics and materials #Laser #Laser-Matter Interactions and Applications #Laser-Plasma Interactions and Diagnostics #Optics #Oscillation (cell signaling) #Physics #Plasma channel #Transverse plane #Wiggler #physics.optics #physics.plasm-ph
paper · pdf · doi:10.1088/1361-6587/ab5231
published in Plasma Physics and Controlled Fusion 62(2), 024002 (IOP Publishing) · 8 pages, 5figures
arxiv created 2019/08/26 · openalex publication_date 2019/10/29 · arxiv updated 2020/01/08 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Abstract A method is proposed to control the transverse motion and x-ray emission of electrons accelerated in a wakefield driven by a laser pulse with transverse chirp. The dispersion of the laser and the nonuniform refractive index of the plasma channel result in transverse laser oscillations, which leads to transverse oscillations of the wake. Electrons accelerated inside the wake also undergo oscillations generating a wiggler like motion. Both the oscillation period and amplitude can be controlled by tuning the laser spatial chirp and the plasma channel width. As a result, the far field spectral distribution of the x-ray emission can be flexibly manipulated.