Back to Search
Start Over
XUV double-pulses with femtosecond to 650 ps separation from a multilayer-mirror-based split-and-delay unit at FLASH
- Source :
- Journal of Synchrotron Radiation, Journal of synchrotron radiation 25(5), 1517-1528 (2018). doi:10.1107/S1600577518006094, Journal of Synchrotron Radiation, 25 (Part 5)
- Publication Year :
- 2018
-
Abstract
- 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.
- Subjects :
- Nuclear and High Energy Physics
02 engineering and technology
01 natural sciences
Spectral line
law.invention
Split-and-delay unit
Free-electron laser
Pump-probe
Multilayer mirror
Temporal and spatial overlap
Flash (photography)
Optics
law
0103 physical sciences
010306 general physics
Instrumentation
Physics
Radiation
business.industry
021001 nanoscience & nanotechnology
Laser
3. Good health
Excited state
Extreme ultraviolet
Femtosecond
ddc:540
0210 nano-technology
business
Ultrashort pulse
Subjects
Details
- ISSN :
- 16005775
- Database :
- OpenAIRE
- Journal :
- Journal of Synchrotron Radiation
- Accession number :
- edsair.doi.dedup.....9e60d9ada4ce6e8d5a954942b60f2bca
- Full Text :
- https://doi.org/10.1107/s1600577518006094