2017/09/30 by Szabolcs Hack, Sándor Varró, Attila Czirják · 7 citations
Engineering · Physics and Astronomy · #Attosecond #Collimated light #Electron #Extreme ultraviolet #Laser #Laser-Matter Interactions and Applications #Laser-Plasma Interactions and Diagnostics #Particle Accelerators and Free-Electron Lasers #Phase (matter) #Radiation #Wavelength #physics.atom-ph #physics.optics #physics.plasm-ph
paper · pdf · doi:10.1088/1367-2630/aad2aa
published in New Journal of Physics 20(7), 073043 (IOP Publishing) · 11 pages, 6 figures, reviewed, corrected and extended work, regarding the intensity dependence of the emitted attosecond pulse
openalex created_date 2017/09/15 · arxiv created 2017/12/18 · openalex publication_date 2018/07/11 · arxiv updated 2019/05/07 · openalex updated_date 2026/08/06
A proposal for a novel source of isolated attosecond XUV—soft x-ray pulses with a well controlled carrier-envelope phase difference (CEP) is presented in the framework of nonlinear Thomson-backscattering. Based on the analytic solution of the Newton–Lorentz equations, the motion of a relativistic electron is calculated explicitly, for head-on collision with an intense fs laser pulse. By using the received formulas, the collective spectrum and the corresponding temporal shape of the radiation emitted by a mono-energetic electron bunch can be easily computed. For certain suitable and realistic parameters, single-cycle isolated pulses of ca. 20 as length are predicted in the XUV—soft x-ray spectral range, including the 2.33–4.37 nm water window. According to our analysis, the generated almost linearly polarized beam is extremely well collimated around the initial velocity of the electron bunch, with considerable intensity and with its CEP locked to that of the fs laser pulse.