Acceleration and radiation of externally injected electrons in laser plasma wakefield driven by a Laguerre

Acceleration and radiation of externally injected electrons in laser plasma wakefield driven by a Laguerre–Gaussian pulse

Shen Zhong-Chen^{1, 2}, Chen Min^{1, 2, †}, Zhang Guo-Bo^{1, 3}, Luo Ji^{1, 2}, Weng Su-Ming^{1, 2}, Yuan Xiao-Hui^{1, 2}, Liu Feng^{1, 2}, Sheng Zheng-Ming^{1, 2, 4}

(color online) Evolutions of the total azimuthal angular momenta of electrons. The pink upward triangles (+Pr) represent the positive azimuthal angular momenta (with the clockwise rotation), and the red downward triangles (−Pr) represent the negative azimuthal angular momenta. The central black dots represent the total azimutal angular momenta (Pr).