Ultra-high intensity laser scattering with quantum corrections

POSTER

Abstract

With the advances in plasma wakefield acceleration and in laser technology, electron beams with about 1 GeV of energy and ultra-high intensity lasers (up to 10$^{\mathrm{21}}$ W/cm$^{\mathrm{2}})$ are now available. These provide a means to explore regimes with a small ratio between the electric field in the electron rest frame and the Schwinger field ($\chi $ parameter). In this work the radiation spectrum of electrons undergoing nonlinear Thomson/Compton scattering at small $\chi $ is explored through PIC simulations combined with the radiation post-processing diagnostic jRad. Quantum corrections are modeled with a quantum corrected emissivity formula that generalizes that of Lieu {\&} Axford [ApJ vol 416, 700 (1993)] for arbitrary angles of observation. Scenarios with short ultra-intense linearly polarized laser pulses (a$_{\mathrm{0}}$ up to 30) interacting with electrons with up to few 10s GeV are modeled. Spatially resolved multidimensional (and integrated) spectra are presented and the effects of radiation damping and laser amplitude variation during the interaction are explored. Comparisons of the results with equivalent OSIRIS-QED simulations are also presented and the transition from the quantum corrected emissivity to QED Compton scattering is explored.

Authors

  • Joana L. Martins

    • GoLP/Instituto de Plasmas e Fus\~ao Nuclear, Instituto Superior T\'ecnico, Universidade de
    • GoLP/Instituto de Plasmas e Fusao Nuclear, Instituto Superior Tecnico, Universidade de Lisboa, Lisbon, Portugal

  • Marija Vranic

    • GoLP/Instituto de Plasmas e Fus\~ao Nuclear, Instituto Superior T\'ecnico, Universidade de
    • GoLP/Instituto de Plasmas e Fusao Nuclear, Instituto Superior Tecnico, Universidade de Lisboa, Lisbon, Portugal

  • Jorge Vieira

    • GoLP/Instituto de Plasmas e Fusao Nuclear, Instituto Superior Tecnico, Universidade de Lisboa, Lisbon, Portugal
    • GoLP/Instituto de Plasmas e Fus\~ao Nuclear, Instituto Superior T\'ecnico, Lisbon
    • IST
    • GoLP/Instituto de Plasma e Fus\~ao Nuclear, Instituto Superior T\'ecnico, Lisbon, Portugal
    • GoLP/Instituto de Plasmas e Fus\~ao Nuclear, Instituto Superior T\'ecnico, Universidade de Lisboa, Lisbon, Portugal

  • Thomas Grismayer

    • GoLP/Instituto de Plasmas e Fusao Nuclear, Instituto Superior Tecnico, Universidade de Lisboa, Lisbon, Portugal
    • GoLP/Instituto de Plasmas e Fus\~ao Nuclear, Instituto Superior T\'ecnico, Universidade de

  • Ricardo Fonseca

    • DCTI/ISCTE Instituto Universit\'ario de Lisboa, 1649-026 Lisbon, Portugal
    • Instituto Superior Tecnico, Lisbon, UK
    • GoLP/Instituto de Plasmas e Fusao Nuclear, Instituto Superior Tecnico, Universidade de Lisboa, Lisbon, Portugal
    • DCTI, ISCTE-Lisbon University Institute, Lisbon, Portugal
    • GoLP/Instituto de Plasma e Fus\~ao Nuclear, Instituto Superior T\'ecnico, Lisbon, Portugal
    • GoLP/Instituto de Plasmas e Fus\~ao Nuclear, Instituto Superior T\'ecnico, Universidade de Lisboa, Lisbon, Portugal

  • Luis Silva

    • GoLP/Instituto de Plasmas e Fus\~ao Nuclear, Instituto Superior T\'ecnico, Universidade de
    • Instituto Superior Tecnico, Lisbon, UK
    • GoLP/Instituto de Plasmas e Fusao Nuclear, Instituto Superior Tecnico, Universidade de Lisboa, Lisbon, Portugal
    • GoLP-IPFN, Instituto Superior Tecnico
    • GoLP/Instituto de Plasmas e Fus\~ao Nuclear, Instituto Superior T\'ecnico, Lisbon
    • GoLP/Instituto de Plasma e Fus\~ao Nuclear, Instituto Superior T\'ecnico, Lisbon, Portugal
    • GoLP/Instituto de Plasmas e Fus\~ao Nuclear, Instituto Superior T\'ecnico, Universidade de Lisboa, Lisbon, Portugal