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A high-repetition rate attosecond light source for time-resolved coincidence spectroscopy

Mikaelsson, Sara LU ; Vogelsang, Jan LU ; Guo, Chen LU ; Sytcevich, Ivan LU ; Viotti, Anne Lise LU orcid ; Langer, Fabian LU ; Cheng, Yu Chen LU orcid ; Nandi, Saikat LU ; Jin, Wenjie and Olofsson, Anna LU , et al. (2021) p.119-130
Abstract

Attosecond pulses, produced through high-order harmonic generation in gases, have been successfully used for observing ultrafast, subfemtosecond electron dynamics in atoms, molecules and solid state systems. Today's typical attosecond sources, however, are often impaired by their low repetition rate and the resulting insufficient statistics, especially when the number of detectable events per shot is limited. This is the case for experiments, where several reaction products must be detected in coincidence, and for surface science applications where space charge effects compromise spectral and spatial resolution. In this work, we present an attosecond light source operating at 200 kHz, which opens up the exploration of phenomena... (More)

Attosecond pulses, produced through high-order harmonic generation in gases, have been successfully used for observing ultrafast, subfemtosecond electron dynamics in atoms, molecules and solid state systems. Today's typical attosecond sources, however, are often impaired by their low repetition rate and the resulting insufficient statistics, especially when the number of detectable events per shot is limited. This is the case for experiments, where several reaction products must be detected in coincidence, and for surface science applications where space charge effects compromise spectral and spatial resolution. In this work, we present an attosecond light source operating at 200 kHz, which opens up the exploration of phenomena previously inaccessible to attosecond interferometric and spectroscopic techniques. Key to our approach is the combination of a high-repetition rate, few-cycle laser source, a specially designed gas target for efficient high harmonic generation, a passively and actively stabilized pump-probe interferometer and an advanced 3D photoelectron/ion momentum detector. While most experiments in the field of attosecond science so far have been performed with either single attosecond pulses or long trains of pulses, we explore the hitherto mostly overlooked intermediate regime with short trains consisting of only a few attosecond pulses. We also present the first coincidence measurement of single-photon dou-ble-ionization of helium with full angular resolution, using an attosecond source. This opens up for future studies of the dynamic evolution of strongly correlated electrons.

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organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Attosecond science, Electron momentum spec-troscopy, High-order harmonic generation, Ultrafast photonics
host publication
Frontiers in Optics and Photonics
pages
12 pages
publisher
Mouton de Gruyter
external identifiers
  • scopus:85123901899
ISBN
9783110710687
9783110709735
DOI
10.1515/9783110710687-011
project
Controlling the photoelectric effect in real-time
language
English
LU publication?
yes
additional info
Publisher Copyright: © 2021 Walter de Gruyter GmbH, Berlin/Boston. All rights reserved.
id
8dd77b9c-b822-4e19-9923-11671830ce96
date added to LUP
2022-02-16 15:54:47
date last changed
2024-08-08 15:53:37
@inbook{8dd77b9c-b822-4e19-9923-11671830ce96,
  abstract     = {{<p>Attosecond pulses, produced through high-order harmonic generation in gases, have been successfully used for observing ultrafast, subfemtosecond electron dynamics in atoms, molecules and solid state systems. Today's typical attosecond sources, however, are often impaired by their low repetition rate and the resulting insufficient statistics, especially when the number of detectable events per shot is limited. This is the case for experiments, where several reaction products must be detected in coincidence, and for surface science applications where space charge effects compromise spectral and spatial resolution. In this work, we present an attosecond light source operating at 200 kHz, which opens up the exploration of phenomena previously inaccessible to attosecond interferometric and spectroscopic techniques. Key to our approach is the combination of a high-repetition rate, few-cycle laser source, a specially designed gas target for efficient high harmonic generation, a passively and actively stabilized pump-probe interferometer and an advanced 3D photoelectron/ion momentum detector. While most experiments in the field of attosecond science so far have been performed with either single attosecond pulses or long trains of pulses, we explore the hitherto mostly overlooked intermediate regime with short trains consisting of only a few attosecond pulses. We also present the first coincidence measurement of single-photon dou-ble-ionization of helium with full angular resolution, using an attosecond source. This opens up for future studies of the dynamic evolution of strongly correlated electrons.</p>}},
  author       = {{Mikaelsson, Sara and Vogelsang, Jan and Guo, Chen and Sytcevich, Ivan and Viotti, Anne Lise and Langer, Fabian and Cheng, Yu Chen and Nandi, Saikat and Jin, Wenjie and Olofsson, Anna and Weissenbilder, Robin and Mauritsson, Johan and Anne, L'Huillier and Gisselbrecht, Mathieu and Arnold, Cord L.}},
  booktitle    = {{Frontiers in Optics and Photonics}},
  isbn         = {{9783110710687}},
  keywords     = {{Attosecond science; Electron momentum spec-troscopy; High-order harmonic generation; Ultrafast photonics}},
  language     = {{eng}},
  month        = {{06}},
  pages        = {{119--130}},
  publisher    = {{Mouton de Gruyter}},
  title        = {{A high-repetition rate attosecond light source for time-resolved coincidence spectroscopy}},
  url          = {{http://dx.doi.org/10.1515/9783110710687-011}},
  doi          = {{10.1515/9783110710687-011}},
  year         = {{2021}},
}