Energy enhancement of laser-driven ions by radiation reaction and Breit-Wheeler pair production in the ultra-relativistic transparency regime
作者机构:Max-Planck-Institut für KernphysikHeidelbergGermany Department of PhysicsUniversity of GothenburgGöteborgSweden
出 版 物:《High Power Laser Science and Engineering》 (高功率激光科学与工程(英文版))
年 卷 期:2024年第12卷第1期
页 面:60-73页
核心收录:
学科分类:080901[工学-物理电子学] 07[理学] 0809[工学-电子科学与技术(可授工学、理学学位)] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 070201[理学-理论物理] 0803[工学-光学工程] 0702[理学-物理学]
主 题:ion acceleration quantum electrodynamic effects
摘 要:The impact of radiation reaction and Breit±Wheeler pair production on the acceleration of fully ionized carbon ions driven by an intense linearly polarized laser pulse has been investigated in the ultra-relativistic transparency *** initial expectations, the radiation reaction and pair production at ultra-high laser intensities are found to enhance the energy gained by the ions. The electrons lose most of their transverse momentum, and the additionally produced pair plasma of Breit±Wheeler electrons and positrons co-streams in the forward direction as opposed to the existing electrons streaming at an angle above zero degree. We discuss how these observations could be explained by the changes in the phase velocity of the Buneman instability, which is known to aid ion acceleration in the breakout afterburner regime, by tapping the free energy in the relative electron and ion streams. We present evidence that these non-classical effects can further improve the highest carbon ion energies in this transparency regime.