Logo: to the web site of Uppsala University

uu.sePublications from Uppsala University
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Decreasing ultrafast x-ray pulse durations with saturable absorption and resonant transitions
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Chemical and Bio-Molecular Physics.ORCID iD: 0000-0003-0707-1832
Show others and affiliations
2023 (English)In: Physical review. E, ISSN 2470-0045, E-ISSN 2470-0053, Vol. 107, no 1, article id 015205Article in journal (Refereed) Published
Abstract [en]

Saturable absorption is a nonlinear effect where a material's ability to absorb light is frustrated due to a high influx of photons and the creation of electron vacancies. Experimentally induced saturable absorption in copper revealed a reduction in the temporal duration of transmitted x-ray laser pulses, but a detailed account of changes in opacity and emergence of resonances is still missing. In this computational work, we employ nonlocal thermodynamic equilibrium plasma simulations to study the interaction of femtosecond x rays and copper. Following the onset of frustrated absorption, we find that a K–M resonant transition occurring at highly charged states turns copper opaque again. The changes in absorption generate a transient transparent window responsible for the shortened transmission signal. We also propose using fluorescence induced by the incident beam as an alternative source to achieve shorter x-ray pulses. Intense femtosecond x rays are valuable to probe the structure and dynamics of biological samples or to reach extreme states of matter. Shortened pulses could be relevant for emerging imaging techniques.

Place, publisher, year, edition, pages
American Physical Society (APS) American Physical Society, 2023. Vol. 107, no 1, article id 015205
National Category
Atom and Molecular Physics and Optics Fusion, Plasma and Space Physics
Identifiers
URN: urn:nbn:se:uu:diva-495128DOI: 10.1103/physreve.107.015205ISI: 000923229600007OAI: oai:DiVA.org:uu-495128DiVA, id: diva2:1730426
Funder
Swedish Research Council, 2019-03935Swedish Research Council, 2018-00740German Research Foundation (DFG), 390715994Available from: 2023-01-24 Created: 2023-01-24 Last updated: 2024-01-15Bibliographically approved

Open Access in DiVA

fulltext(1049 kB)185 downloads
File information
File name FULLTEXT01.pdfFile size 1049 kBChecksum SHA-512
3a88559ea8357996e433e4ab7a554ae9f8261b24e74d52fed0b4dba4b8903b6c20e37789fbe2872066165ff8b9732034ba3cab817a58657721cf582805fb29a2
Type fulltextMimetype application/pdf

Other links

Publisher's full text

Authority records

Cardoch, SebastianCaleman, CarlTimneanu, Nicusor

Search in DiVA

By author/editor
Cardoch, SebastianTrost, FabianScott, Howard A.Chapman, Henry N.Caleman, CarlTimneanu, Nicusor
By organisation
Chemical and Bio-Molecular Physics
In the same journal
Physical review. E
Atom and Molecular Physics and OpticsFusion, Plasma and Space Physics

Search outside of DiVA

GoogleGoogle Scholar
Total: 185 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 102 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf