论文标题
非线性汤姆森散射与一般椭圆极化激光和背景磁场的角度分布
Angular distributions of nonlinear Thomson scattering in combining field with a general elliptically polarized laser and a background magnetic field
论文作者
论文摘要
研究了由椭圆极化激光和背景磁场组成的组合场中电子运动的非线性汤森散射。电子轨迹的依赖性，基本频率，空间分布中的最大辐射功率和相应的空间角度在椭圆时获得。此外，我们发现，无论谐波的顺序，激光强度，磁共振参数和初始轴向动量是什么，散射光谱相对于方位角的角度分布都会表现出对称性。同时，光谱的极角分布越来越接近激光强度，磁共振参数和初始轴向动量的激光传播方向。最大辐射功率增加，相应的极角降低。可以获得相应的光子数和光子亮度的最大辐射功率的最佳角度，这意味着当选择合适的参数时，研究方案可以生成高质量的XUV或/和X射线。
Nonlinear Thomson scattering of an electron motion in a combining field constituted by an elliptically polarized laser and a background magnetic field is investigated. The dependence of the electron trajectories, the fundamental frequency, the maximum radiation power in spatial distribution and corresponding spatial angle on ellipticity are obtained. In addition, we find that the angular distributions of scattering spectra with respect to the azimuthal angle exhibits the symmetry no matter what the order of harmonics, the laser intensity, the magnetic resonance parameter and the initial axial momentum are. Meanwhile, the polar angle distribution of the spectra approaches more and more the laser propagation direction with the laser intensity, the magnetic resonance parameter and the initial axial momentum. The maximum radiated power increases and the corresponding polar angle decreases. The optimal angle for the maximum radiated power per unit of solid, the corresponding photon number and the photons brightness can be obtained, which implies that the high quality XUV or/and x-ray can be generated by the studied scheme when the suitable parameters are chosen.
