Phase evolution of strong-field ionization

Lynda  Hutcheson; Maximilian Hartmann; Gergana D. Borisova; Paul Birk; Shuyuan Hu; Christian Ott; Thomas Pfeifer; Hugo W. van der Hart; Andrew C. Brown

doi:10.1103/PhysRevResearch.7.L022074

Phase evolution of strong-field ionization

Lynda Hutcheson^*
, Maximilian Hartmann
, Gergana D. Borisova
, Paul Birk
, Shuyuan Hu
, Christian Ott
, Thomas Pfeifer
, Hugo W. van der Hart
, Andrew C. Brown

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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Abstract

We investigate the time-dependent evolution of the dipole phase shift induced by strong-field ionization (SFI) using attosecond transient absorption spectroscopy (ATAS) for time delays where the pump-probe pulses overlap. We study measured and calculated time-dependent attosecond transient absorption spectra of the ionic 4⁢𝑑→5⁢𝑝 in xenon, and present the time-dependent line shape parameters in the complex plane. We attribute the complex dynamics to the contribution of three distinct processes: accumulation of ionization, transient population, and retrapping of excited states arising from polarization of the ground state.

Original language	English
Article number	L022074
Number of pages	6
Journal	Physical Review Research
Volume	7
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevResearch.7.L022074
Publication status	Published - 24 Jun 2025

Keywords

phase evolution
strong-field ionization
dipole phase shift

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10.1103/PhysRevResearch.7.L022074Licence: CC BY

Phase evolution of strong-field ionization
Copyright 2025 the authors. This is an open access article published under a Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited.
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Phase evolution of strong-field ionization
Hutcheson, L., Hartmann, M., Borisova, G., Birk, P., Hu, S., Ott, C., Pfeifer, T., Van Der Hart, H. & Brown, A., 07 Jul 2025.
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title = "Phase evolution of strong-field ionization",

abstract = "We investigate the time-dependent evolution of the dipole phase shift induced by strong-field ionization (SFI) using attosecond transient absorption spectroscopy (ATAS) for time delays where the pump-probe pulses overlap. We study measured and calculated time-dependent attosecond transient absorption spectra of the ionic 4⁢𝑑→5⁢𝑝 in xenon, and present the time-dependent line shape parameters in the complex plane. We attribute the complex dynamics to the contribution of three distinct processes: accumulation of ionization, transient population, and retrapping of excited states arising from polarization of the ground state. ",

keywords = "phase evolution, strong-field ionization, dipole phase shift",

author = "Lynda Hutcheson and Maximilian Hartmann and Borisova, \{Gergana D.\} and Paul Birk and Shuyuan Hu and Christian Ott and Thomas Pfeifer and \{van der Hart\}, \{Hugo W.\} and Brown, \{Andrew C.\}",

year = "2025",

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day = "24",

doi = "10.1103/PhysRevResearch.7.L022074",

language = "English",

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AU - Hutcheson, Lynda

AU - Hartmann, Maximilian

AU - Borisova, Gergana D.

AU - Birk, Paul

AU - Hu, Shuyuan

AU - Ott, Christian

AU - Pfeifer, Thomas

AU - van der Hart, Hugo W.

AU - Brown, Andrew C.

PY - 2025/6/24

Y1 - 2025/6/24

N2 - We investigate the time-dependent evolution of the dipole phase shift induced by strong-field ionization (SFI) using attosecond transient absorption spectroscopy (ATAS) for time delays where the pump-probe pulses overlap. We study measured and calculated time-dependent attosecond transient absorption spectra of the ionic 4⁢𝑑→5⁢𝑝 in xenon, and present the time-dependent line shape parameters in the complex plane. We attribute the complex dynamics to the contribution of three distinct processes: accumulation of ionization, transient population, and retrapping of excited states arising from polarization of the ground state.

AB - We investigate the time-dependent evolution of the dipole phase shift induced by strong-field ionization (SFI) using attosecond transient absorption spectroscopy (ATAS) for time delays where the pump-probe pulses overlap. We study measured and calculated time-dependent attosecond transient absorption spectra of the ionic 4⁢𝑑→5⁢𝑝 in xenon, and present the time-dependent line shape parameters in the complex plane. We attribute the complex dynamics to the contribution of three distinct processes: accumulation of ionization, transient population, and retrapping of excited states arising from polarization of the ground state.

KW - phase evolution

KW - strong-field ionization

KW - dipole phase shift

U2 - 10.1103/PhysRevResearch.7.L022074

DO - 10.1103/PhysRevResearch.7.L022074

M3 - Article

SN - 2643-1564

VL - 7

JO - Physical Review Research

JF - Physical Review Research

IS - 2

M1 - L022074

ER -

Phase evolution of strong-field ionization

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Phase evolution of strong-field ionization

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