Characterization of ultrashort pulses at FLASH
The development of ultrashort FEL pulses with few-fs and sub-fs pulses is a research field in the FEL community with promising applications. One of these applications are pump/probe experiments with ultrashort FEL pulses, as the temporal dynamic of the system is a key to the fundamental understanding of its underlying physics. By a strong non-linear reverse tapering of the electron bunch FEL radiation with a single spike spectrum is generated. Therefore, the pulse duration can be evaluated by an first order autocorrelation. With a split-and-delay line unit for the XUV and soft X-ray spectral range we performed linear and non-linear measurements to evaluate the temporal characteristics of these ultrashort pulses with attosecond resolution. The non-linear Autocorrelation was performed at a photon energy of 206 eV in Ar gas.
Authors
- Dennis Eckermann
- E.A. Schneidmiller (ORCID: https://orcid.org/0000-0002-4832-1546)
- Markus Gühr
- Julius Schwarz (ORCID: https://orcid.org/0000-0002-6876-6921)
- S. Toleikis (ORCID: https://orcid.org/0009-0008-2136-7780)
- H. Zacharias (ORCID: https://orcid.org/0000-0001-9807-1103)
- Elke Plönjes (ORCID: https://orcid.org/0000-0002-2325-7402)
- Matthias Dreimann (ORCID: https://orcid.org/0009-0008-0393-6580)
- Sebastian Roling
- Tobias Reiker (ORCID: https://orcid.org/0000-0001-8720-5882)
- Victor Kärcher (ORCID: https://orcid.org/0009-0002-1622-9857)
- Fabiano Lever (ORCID: https://orcid.org/0000-0002-8448-7594)
- R. Treusch (ORCID: https://orcid.org/0000-0001-8479-8862)
- Dennis Mayer (ORCID: https://orcid.org/0000-0002-1858-6818)
- M. Martins (ORCID: https://orcid.org/0000-0002-1228-5029)
- Paul Geo Shine
- Ruwen Quenter
- Mark von Piechowski
Institutions
- University of Münster (DE)
- Deutsches Elektronen-Synchrotron DESY (DE)
Publication Details
- Published
- 2025-04-04
- DOI
- https://doi.org/10.1117/12.3056307
- Primary Topic
- Laser-Plasma Interactions and Diagnostics
- Type
- article
- Field-Weighted Citation Impact
- 0.00