ArticleNature communications2021
Measuring the frequency chirp of extreme-ultraviolet free-electron laser pulses by transient absorption spectroscopy.
Article in Nature communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Ultrafast Spectroscopy with anACS physical chemistry Au · 2026Article
- Nanosecond-pulsed electroluminescence from high current-driven quantum-dot light-emitting diodes.Science advances · 2025Article
- Ultrafast laser state active controlling based on anisotropic quasi-1D material.Light, science & applications · 2024Article
- Transient responses of double core-holes generation in all-attosecond pump-probe spectroscopy.Scientific reports · 2024Article
- The soft X-ray and XUV split-and-delay unit at beamlines FL23/24 at FLASH2.Journal of synchrotron radiation · 2023Article
- High output mode-locked laser empowered by defect regulation in 2D BiNature communications · 2022Article
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Authors and funding
24 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
High-intensity ultrashort pulses at extreme ultraviolet (XUV) and x-ray photon energies, delivered by state-of-the-art free-electron lasers (FELs), are revolutionizing the field of ultrafast spectroscopy. For crossing the next frontiers of research, precise, reliable and practical photonic tools for the spectro-temporal characterization of the pulses are becoming steadily more important. Here, we experimentally demonstrate a technique for the direct measurement of the frequency chirp of extreme-ultraviolet free-electron laser pulses based on fundamental nonlinear optics. It is implemented in XUV-only pump-probe transient-absorption geometry and provides in-situ information on the time-energy structure of FEL pulses. Using a rate-equation model for the time-dependent absorbance changes of an ionized neon target, we show how the frequency chirp can be directly extracted and quantified from measured data. Since the method does not rely on an additional external field, we expect a widespread implementation at FELs benefiting multiple science fields by in-situ on-target measurement and optimization of FEL-pulse properties.
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Registered trials
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