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arXiv · 2202.06147

Phase retrieval from angular streaking of XUV atomic ionization

Anatoli S. Kheifets·Rickson Wielian·Igor A. Ivanov·Anna Li Wang·Agostino Marinelli·James P. Cryan
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Abstract

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.

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Anatoli S. Kheifets, Rickson Wielian, Igor A. Ivanov, Anna Li Wang, Agostino Marinelli, James P. Cryan. 2022-08-24. Phase retrieval from angular streaking of XUV atomic ionization. https://doi.org/10.1103/physreva.106.033106

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