2013/08/31 by K. Krajewska, J. Z. Kamiński, J. Z. Kaminski · 22 citations
Engineering · Physics and Astronomy · #Compton scattering #Computational physics #Electron #Laser-Matter Interactions and Applications #Laser-Plasma Interactions and Diagnostics #Laser-induced spectroscopy and plasma #Nonlinear system #Physics #Polarization (electrochemistry) #Quantum electrodynamics #Quantum mechanics #Radiation #Scaling #Statistical physics #Thomson scattering #hep-ph #physics.atom-ph
paper · pdf · doi:10.1103/physreva.90.052117
published in Physical Review A 90(5) (American Physical Society) · 17 pages, 11 figures
arxiv created 2014/11/09 · openalex publication_date 2014/11/24 · arxiv updated 2015/08/07 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The distributions of Compton and Thomson radiation for a shaped laser pulse colliding with a free electron are calculated in the framework of quantum and classical electrodynamics, respectively. We introduce a scaling law for the Compton and the Thomson frequency distributions which universally applies to long and short incident pulses. Thus, we extend the validity of frequency scaling postulated in previous studies comparing nonlinear Compton and Thomson processes. The scaling law introduced in this paper relates the Compton no-spin flipping process to the Thomson process over nearly the entire spectrum of emitted radiation, including its high-energy portion. By applying the frequency scaling, we identify that both spin and polarization effects are responsible for differences between classical and quantum results. The same frequency scaling applies to angular distributions and to temporal power distributions of emitted radiation, which we illustrate numerically.