Kuzmin I V, Mironov S Yu, Gacheva E I, Potemkin A K, Khazanov E A, Krasilnikov M A, Stephan F
Appl Opt. 2020 Mar 20;59(9):2776-2783. doi: 10.1364/AO.383181.
A method for shaping periodic intensity distributions of strongly chirped picosecond laser pulses in the infrared range by periodic phase modulation of the spectrum is proposed. The dependence of the time modulation period and depth on the parameters of periodic phase modulation of the spectrum is analyzed by analytical and numerical methods. It is demonstrated that the intensity distribution structure obtained at second- and fourth-harmonic generation can be retained by introducing an angular chirp. The electron bunch dynamics at the photoinjector test facility at DESY in Zeuthen (PITZ) was modeled numerically using ellipsoidal laser pulses with intensity modulation.
提出了一种通过光谱的周期性相位调制来塑造红外范围内强啁啾皮秒激光脉冲的周期性强度分布的方法。采用解析和数值方法分析了时间调制周期和深度对光谱周期性相位调制参数的依赖性。结果表明，通过引入角啁啾，可以保留在二次谐波和四次谐波产生时获得的强度分布结构。使用具有强度调制的椭圆形激光脉冲对德国电子同步加速器研究所（DESY）在措森的光注入器测试装置（PITZ）中的电子束团动力学进行了数值模拟。
