XUV double-pulses with femtosecond to 650 ps separation from a multilayer-mirror-based split-and-delay unit at FLASH
open access.
Veröffentlicht in: | Journal of synchrotron radiation. - 1994. - 25(2018), Pt 5 vom: 01. Sept., Seite 1517-1528 |
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1. Verfasser: | |
Weitere Verfasser: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Format: | Online-Aufsatz |
Sprache: | English |
Veröffentlicht: |
2018
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Zugriff auf das übergeordnete Werk: | Journal of synchrotron radiation |
Schlagworte: | Journal Article free-electron laser multilayer mirror pump–probe split-and-delay unit temporal and spatial overlap |
Zusammenfassung: | open access. Extreme ultraviolet (XUV) and X-ray free-electron lasers enable new scientific opportunities. Their ultra-intense coherent femtosecond pulses give unprecedented access to the structure of undepositable nanoscale objects and to transient states of highly excited matter. In order to probe the ultrafast complex light-induced dynamics on the relevant time scales, the multi-purpose end-station CAMP at the free-electron laser FLASH has been complemented by the novel multilayer-mirror-based split-and-delay unit DESC (DElay Stage for CAMP) for time-resolved experiments. XUV double-pulses with delays adjustable from zero femtoseconds up to 650 picoseconds are generated by reflecting under near-normal incidence, exceeding the time range accessible with existing XUV split-and-delay units. Procedures to establish temporal and spatial overlap of the two pulses in CAMP are presented, with emphasis on the optimization of the spatial overlap at long time-delays via time-dependent features, for example in ion spectra of atomic clusters |
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Beschreibung: | Date Completed 06.09.2018 Date Revised 16.07.2024 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
ISSN: | 1600-5775 |
DOI: | 10.1107/S1600577518006094 |