图  1  自旋依赖辐射函数$ F\left({\chi }_{\mathrm{e}},{\chi }_{\mathrm{p}\mathrm{h}}\right) $的理论和模拟对比^[58]

Figure  1.  Comparison between the analytical and numerical spin-dependent radiation function $ F\left({\chi }_{\mathrm{e}},{\chi }_{\mathrm{p}\mathrm{h}}\right) $^[58]

图  2  强激光与近临界等离子体相互作用产生极化电子束的方案图^[58]

Figure  2.  Schematic of the generation of spin-polarized electrons in the near-critical density plasma irradiated by a high-intensity laser pulse^[58]

图  3  极化等离子体电子的时空演化过程^[58]

Figure  3.  Spatial and temporal evolution of spin-polarized plasma electrons^[58]

图  4  基于全光学非线性康普顿散射产生线偏振伽马光子的方案^[65]

Figure  4.  Scenario for the generation of linearly-polarized γ-rays via nonlinear Compton scattering^[65]

图  5  基于线偏振超强激光与填充近临界密度等离子体的锥形靶体相互作用的方案^[65]

Figure  5.  Scenario for the generation of LP γ-rays by an ultrastrong LP laser pulse interacting with a conical Au target filled with an NCD hydrogen plasma^[65]

图  6  (a)圆偏振强激光脉冲与近临界密度靶相互作用产生具有螺旋性角分布的线偏振伽马光子辐射；(b)伽马光子线偏振方向沿着准角方向；(c)经历加速的电子，其辐射的伽马光子线偏振的角分布具有正螺旋性；(d)经历减速的电子，其辐射的伽马光子线偏振的角分布具有正螺旋性；(c)、(d)为理论预言；(e)、(f)是相应的PIC模拟结果，分别与(c)、(d)对应^[69]

Figure  6.  (a) The schematic for generation of linearly polarized gamma-photons with angular spiral tendency from a near-critical density plasma irradiated by a circularly polarized ultrastrong laser pulse. (b) The linear polarization (LP) orientation is along the azimuthal direction. (c) For an accelerating electron, there is a counter-clockwise spiral tendency in the angular distribution of gamma-photon LP orientation. (d) For a decelerating electron, there is a clockwise spiral tendency in the angular distribution of gamma-photon LP orientation. (c) and (d) are for the analytically predicted results, while (e) and (f) are for the corresponding simulation results^[69]

图  7  PIC模拟结果^[70]

Figure  7.  PIC simulation results^[70]

图  8  利用激光与固体靶相互作用来产生极化正电子束的方案^[71]

Figure  8.  Schematic for generating polarized positrons in laser-solid interactions ^[71]