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Holographic interference in atomic photoionization from a semiclassical standpoint

机译:从半透明的立场造成原子摄影的全息干扰

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A theoretical study of the interference pattern imprinted on the doubly differential momentum distribution of the photoelectron due to atomic ionization induced by a short laser pulse is developed from a semiclassical standpoint. We use the semiclassical two-step model of Shvetsov-Shilovski et al. [Phys. Rev. A 94, 013415 (2016)] to elucidate the nature of the holographic structure. Three different types of trajectories are characterized during the ionization process by a single-cycle pulse with three different types of interferences. We show that the holographic interference arises from the ionization yield only during the first half cycle of the pulse, whereas the coherent superposition of electron trajectories during the first half cycle and the second half cycle gives rise to two other kinds of intracycle interference. Although the picture of interference of a reference beam and a signal beam is adequate, we show that our results for the formation of the holographic pattern agree with the glory rescattering theory of Xia et al. [Phys. Rev. Lett. 121, 143201 (2018)].We probe the two-step semiclassical model by comparing it to the numerical results of the time-dependent Schr?dinger equation.
机译:由于通过短的激光脉冲引起的原子电离引起的光电子的双差分动量分布的干涉模式的理论研究是从半透明的观点开发的。我们使用Shvetsov-Shilovski等人的半定性两步模型。 [物理。 Rev. A 94,013415(2016)]为了阐明全息结构的性质。在电离过程中,通过单循环脉冲具有三种不同类型的干扰的三种不同类型的轨迹。我们表明全息间干扰仅在脉冲的前半周期期间从电离产量产生,而电子轨迹的相干叠加在前半周期和下半周周期产生两种类型的血液干扰。虽然参考光束的干扰和信号束的干扰是足够的,但我们表明我们的结果形成全息模式的结果与夏等人的荣耀振振理论一致。 [物理。 rev. lett。 121,143201(2018)]。我们通过将其与时间依赖性SCHR的数值结果进行比较来探测两步半导体模型。

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