Characterization of XUV

A. S. Kheifets

doi:10.1103/PhysRevResearch.6.L012002

2024-01-03

A. S. Kheifets *

DOI：10.1103/PhysRevResearch.6.L012002

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摘要

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A strong helicity dependence of reconstruction of attosecond bursts by beating of two-photon transitions (RABBITT) with circularly polarized XUV and IR pulses was reported by Han et al. [Nat. Phys. 19, 1649 (2023) and arXiv:2302.04137]. They attributed a circular dichroic phase in RABBITT to the helical structure of the photoelectron wave packets in the final state. We exploit this effect to determine the magnitude and phase of two-photon XUV + IR ionization amplitudes. In s-electron targets (H, He, Li), such a determination is fully ab initio and requires no further approximations. In heavier noble gases like Ar, characterization of two-photon ionization amplitudes can be made from the circular dichroic phase with minimal and very realistic assumptions.

期刊

Physical Review Research

IF:

4.2

论文数:

7.6K

被引数:

2.7W

机构

Australian National University

学者数:

2.1W

论文数: 2.3W

被引数: 3.9W

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