Generation of High-Brilliance Polarized γ-Rays Via Vacuum Dichroism-Assisted Vacuum Birefringence.

ABSTRACT: High-brilliance circularly polarized γ-photon beams are of great significance for a wide range of applications. However, their generation through nonlinear Compton scattering must require a high-density longitudinally-spin-polarized electron beam and consequently is still a great challenge. Here, a novel method is proposed to generate such γ-photon beams via the vacuum dichroism (VD)-assisted vacuum birefringence (VB) effect, only utilizing a well-established unpolarized electron beam. A linearly polarized laser pulse is splitted into two subpulses with the first one colliding with a dense unpolarized electron beam to generate a linearly polarized γ-photon beam (via nonlinear Compton scattering), which then further collides with the second subpulse and is transformed into a circularly pola

SUBMITTER: Lv C 

PROVIDER: S-EPMC12412587 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature