论文标题
从XUV原子电离的角条纹中检索相
Phase retrieval from angular streaking of XUV atomic ionization
论文作者
论文摘要
我们通过在圆形极化的IR激光场中条纹将光电子划分来证明XUV原子电离的准确检索。然后可以将条纹阶段转换为包含Wigner和Continuum-Continuum组件的原子时间延迟。我们的演示基于时间依赖性schrödinger方程的数值解。我们使用通过在广泛的光子能量中的孤立的XUV脉冲电离的氢原子测试了这一技术。同时，我们运行了一系列的Rabbitt模拟，并证明了两种方法提供的相位和定时信息的等效性。这验证了提出的技术，并使其成为有用的工具，可以应用于从新型的自由电子激光源中暴露于XUV辐射的广泛范围的原子和分子靶标。
We demonstrate an accurate phase retrieval of XUV atomic ionization by streaking the photoelectron in a circularly polarized IR laser field. The streaking phase can then be converted to the atomic time delay containing the Wigner and continuum-continuum components. Our demonstration is based on a numerical solution of the time-dependent Schrödinger equation. We test this technique using the hydrogen atom ionized by an isolated attosecond XUV pulse across a wide range of photon energies. In parallel, we run a series of RABBITT simulations and demonstrate equivalence of the phase and timing information provided by the two methods. This validates the proposed technique and makes it a useful tool that can be applied to a broad range of atomic and molecular targets exposed to XUV radiation from novel free-electron laser sources.
