TY  - JOUR
AU  - Dziarzhytski, Siarhei
AU  - Biednov, M.
AU  - Dicke, B.
AU  - Wang, A.
AU  - Miedema, P. S.
AU  - Engel, R. Y.
AU  - Schunck, Jan
AU  - Redlin, H.
AU  - Weigelt, Holger
AU  - Siewert, F.
AU  - Behrens, Christopher
AU  - Sinha, M.
AU  - Schulte, Amelie
AU  - Grimm-Lebsanft, B.
AU  - Chiuzbăian, S. G.
AU  - Wurth, W.
AU  - Beye, M.
AU  - Rübhausen, M.
AU  - Brenner, Guenter
TI  - The TRIXS end-station for femtosecond time-resolved resonant inelastic X-ray free-electron laser FLASH
JO  - Structural dynamics
VL  - 7
IS  - 5
SN  - 2329-7778
CY  - Melville, NY
PB  - AIP Publishing LLC
M1  - PUBDB-2020-03171
SP  - 054301 (1-12)
PY  - 2020
AB  - We present the experimental end-station TRIXS dedicated to time-resolved soft x-ray resonant inelastic x-ray scattering (RIXS) experiments on solid samples at the free-electron laser FLASH. Using monochromatized ultrashort femtosecond XUV/soft x-ray photon pulses in combination with a synchronized optical laser in a pump-probe scheme, the TRIXS setup allows measuring sub-picosecond time-resolved high-resolution RIXS spectra in the energy range from 35 eV to 210 eV, thus spanning the M-edge (M<sub>1</sub> and M<sub>2,3</sub>) absorption resonances of 3d transition metals and N<sub>4,5</sub>-edges of rare earth elements. A Kirkpatrick–Baez refocusing mirror system at the first branch of the plane grating monochromator beamline (PG1) provides a focus of (6 × 6) μm<sup>2</sup> (FWHM) at the sample. The RIXS spectrometer reaches an energy resolution of 35–160 meV over the entire spectral range. The optical laser system based on a chirped pulse optical parametric amplifier provides approximately 100 fs (FWHM) long photon pulses at the fundamental wavelength of 800 nm and a fluence of 120 mJ/cm<sup>2</sup> at a sample for optical pump-XUV probe measurements. Furthermore, optical frequency conversion enables experiments at 400 nm or 267 nm with a fluence of 80 and 30 mJ/cm<sup>2</sup>, respectively. Some of the first (pump-probe) RIXS spectra measured with this setup are shown. The measured time resolution for time-resolved RIXS measurements has been characterized as 287 fs (FWHM) for the used energy resolution.
LB  - PUB:(DE-HGF)16
C6  - pmid:32953941
UR  - <Go to ISI:>//WOS:000569934600001
DO  - DOI:10.1063/4.0000029
UR  - https://bib-pubdb1.desy.de/record/442673
ER  -