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Redirection and reshaping of intense extreme-ultraviolet radiation

He, Yu ; Magunia, Alexander ; Mandal, Harijyoti ; Mourtada, Muwaffaq Ali ; Kleine, Carlo ; Saha, Arikta ; Rebholz, Marc ; Borisova, Gergana D. LU orcid ; Hedewig, Lina and Lindenblatt, Hannes , et al. (2026) In Science Advances 12(22).
Abstract

The goal to control short-wavelength radiation for the investigation and manipulation of ultrafast dynamics in quantum systems coevolves with the growing availability of extreme-ultraviolet (XUV) and x-ray sources from high-harmonic generation and free-electron lasers. Here, we present an XUV spatio-spectral phase modulator based on an intense XUV laser beam propagating through an optically thick resonant target, introducing dispersion profile variations around the resonance both perpendicular to and along the laser propagation direction. The resulting dipole radiation gets spectrally reshaped and becomes more divergent as compared to the original beam in the far field. As an experimental demonstration, the intense-XUV–induced... (More)

The goal to control short-wavelength radiation for the investigation and manipulation of ultrafast dynamics in quantum systems coevolves with the growing availability of extreme-ultraviolet (XUV) and x-ray sources from high-harmonic generation and free-electron lasers. Here, we present an XUV spatio-spectral phase modulator based on an intense XUV laser beam propagating through an optically thick resonant target, introducing dispersion profile variations around the resonance both perpendicular to and along the laser propagation direction. The resulting dipole radiation gets spectrally reshaped and becomes more divergent as compared to the original beam in the far field. As an experimental demonstration, the intense-XUV–induced double-peak off-axis structure in the far-field spectrum obtained at the Free-Electron Laser in Hamburg (FLASH) shows indications of the underlying XUV-driven Rabi dynamics and resonant pulse propagation effects. The presented work highlights a ubiquitous phenomenon occurring when an intense laser beam passes through a resonant medium.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Science Advances
volume
12
issue
22
article number
eaef5300
publisher
American Association for the Advancement of Science (AAAS)
external identifiers
  • pmid:42213825
  • scopus:105040644764
ISSN
2375-2548
DOI
10.1126/sciadv.aef5300
language
English
LU publication?
yes
id
58ec2cf2-aa82-4b2d-b079-2f48c0fd5cb4
date added to LUP
2026-08-11 12:39:03
date last changed
2026-09-08 14:21:09
@article{58ec2cf2-aa82-4b2d-b079-2f48c0fd5cb4,
  abstract     = {{<p>The goal to control short-wavelength radiation for the investigation and manipulation of ultrafast dynamics in quantum systems coevolves with the growing availability of extreme-ultraviolet (XUV) and x-ray sources from high-harmonic generation and free-electron lasers. Here, we present an XUV spatio-spectral phase modulator based on an intense XUV laser beam propagating through an optically thick resonant target, introducing dispersion profile variations around the resonance both perpendicular to and along the laser propagation direction. The resulting dipole radiation gets spectrally reshaped and becomes more divergent as compared to the original beam in the far field. As an experimental demonstration, the intense-XUV–induced double-peak off-axis structure in the far-field spectrum obtained at the Free-Electron Laser in Hamburg (FLASH) shows indications of the underlying XUV-driven Rabi dynamics and resonant pulse propagation effects. The presented work highlights a ubiquitous phenomenon occurring when an intense laser beam passes through a resonant medium.</p>}},
  author       = {{He, Yu and Magunia, Alexander and Mandal, Harijyoti and Mourtada, Muwaffaq Ali and Kleine, Carlo and Saha, Arikta and Rebholz, Marc and Borisova, Gergana D. and Hedewig, Lina and Lindenblatt, Hannes and Trost, Florian and Frühling, Ulrike and Papadopoulou, Christina C. and Appi, Elisa and Düsterer, Stefan and Lang, Tino and Alisauskas, Skirmantas and Heyl, Christoph M. and Palutke, Steffen and Braune, Markus and Bömer, Christina and Krebs, Dietrich and Vinci, Doriana and Mosel, Philip and Biesterfeld, Peer and Hartl, Ingmar and Moshammer, Robert and Kovacev, Milutin and Ueda, Kiyoshi and Gaarde, Mette B. and Ott, Christian and Pfeifer, Thomas}},
  issn         = {{2375-2548}},
  language     = {{eng}},
  number       = {{22}},
  publisher    = {{American Association for the Advancement of Science (AAAS)}},
  series       = {{Science Advances}},
  title        = {{Redirection and reshaping of intense extreme-ultraviolet radiation}},
  url          = {{http://dx.doi.org/10.1126/sciadv.aef5300}},
  doi          = {{10.1126/sciadv.aef5300}},
  volume       = {{12}},
  year         = {{2026}},
}