Photoionization of Xe and 
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 from the 
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 shell in RABBITT fields

Bray, Alexander; Naseem, Faiza; Kheifets, Anatoli

doi:10.1103/physreva.98.043427

Cited by 11 publications

(7 citation statements)

References 31 publications

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“…Here the valence np shell ionization leads to the competing s and d partial waves and the Wigner time delay becomes angular dependent. This effect was predicted theoretically in Ne (Ivanov and Kheifets 2017) and heavier noble gases (Bray et al 2018a(Bray et al , 2018b). An illustration of this effect is presented in figure 13.…”

Section: Angle Resolutionsupporting

confidence: 63%

Wigner time delay in atomic photoionization

Kheifets

2023

J. Phys. B: At. Mol. Opt. Phys.

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For over a century since the Nobel prize winning work by Einstein (1905), atomic photoionization was thought to be an instantaneous process. Recent experimental progress in ultrashort laser pulse generation has allowed to resolve this process in time. The concept of time delay introduced by Wigner (1955) in particle scattering appears to be central to the time resolution of photoionization. In this review, we examine the fundamental concepts of time-respolved atomic ionizataion processes. We will follow the recent literature and show how the initial disagreements between theory and experiment, which persisted for nearly a decade, were ﬁnally reconciled. We will also outline the exciting prospects of this ﬁeld driven by modern experimental and computational technologies.

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Section: Angle Resolutionsupporting

confidence: 63%

Wigner time delay in atomic photoionization

Kheifets

2023

J. Phys. B: At. Mol. Opt. Phys.

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“…There has been significant theoretical work on the angle-dependent time delay, for example, Refs. [26][27][28][29][30][31][32], but fewer related experimental reports [12,28,33], all using the RABBITT technique. The Wigner delay is theoretically isotropic for single-photon ionization of He, but Heuser et al [28] observed an angular dependence in photoemission delay, attributed to the XUV þ IR two-photon ionization process, inherent in RABBITT interferometry.…”

Section: Introductionmentioning

confidence: 99%

New Method for Measuring Angle-Resolved Phases in Photoemission

You¹,

Ueda²,

Грызлова³

et al. 2020

Phys. Rev. X

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“…contains an effective one-electron potential V (r) (Kr [21], Xe [20]). The HamiltonianĤ int (t) describes interaction with the external field and is written in the velocity gaugê…”

Section: A One-electron Tdse and Hhg Spectrummentioning

confidence: 99%

“…As previously [19,20], we solve the one-electron TDSE for a target atom i∂Ψ(r, t)/∂t = Ĥatom + Ĥint (t) Ψ(r, t) ,…”

Section: A One-electron Tdse and Hhg Spectrummentioning

confidence: 99%

Correlation enhancement of high-order harmonic generation in Xe

et al. 2019

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We consider the process of high-order harmonics generation (HHG) in the xenon atom enhanced by the inter-shell correlation between the valence 5p and inner 4d shells. We derive the HHG spectrum from a numerical solution of the one-electron time-dependent Schrödinger equation multiplied by the enhancement factor taken as the photoionization cross-sections ratio calculated with and without the inter-shell correlation. Such a simplified approach is adequate to describe the experimental HHG spectrum reported by Shiner et al. [Nat. Phys. 7, 464 (2011)] generated by a single color IR laser. Similarly, we find good agreement when applied to the two-color driven HHG spectra reported by Faccialá et al. [Phys. Rev. Lett. 117, 093902 (2016)].

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Photoionization of Xe and Xe@C60 from the 4d shell in RABBITT fields

Cited by 11 publications

References 31 publications

Wigner time delay in atomic photoionization

Wigner time delay in atomic photoionization

New Method for Measuring Angle-Resolved Phases in Photoemission

Correlation enhancement of high-order harmonic generation in Xe

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