Details
| Original language | English |
|---|---|
| Article number | 123004 |
| Journal | Review of scientific instruments |
| Volume | 92 |
| Issue number | 12 |
| Publication status | Published - 16 Dec 2021 |
Abstract
We present the design, integration, and operation of the novel vacuum ultraviolet (VUV) beamline installed at the free-electron laser (FEL) FLASH. The VUV source is based on high-order harmonic generation (HHG) in gas and is driven by an optical laser system synchronized with the timing structure of the FEL. Ultrashort pulses in the spectral range from 10 to 40 eV are coupled with the FEL in the beamline FL26, which features a reaction microscope (REMI) permanent endstation for time-resolved studies of ultrafast dynamics in atomic and molecular targets. The connection of the high-pressure gas HHG source to the ultra-high vacuum FEL beamline requires a compact and reliable system, able to encounter the challenging vacuum requirements and coupling conditions. First commissioning results show the successful operation of the beamline, reaching a VUV focused beam size of about 20 μm at the REMI endstation. Proof-of-principle photo-electron momentum measurements in argon indicate the source capabilities for future two-color pump-probe experiments.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Instrumentation
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In: Review of scientific instruments, Vol. 92, No. 12, 123004, 16.12.2021.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Synchronized beamline at FLASH2 based on high-order harmonic generation for two-color dynamics studies
AU - Appi, E.
AU - Papadopoulou, C. C.
AU - Mapa, J. L.
AU - Jusko, C.
AU - Mosel, P.
AU - Schoenberg, A.
AU - Stock, J.
AU - Feigl, T.
AU - Ališauskas, S.
AU - Lang, T.
AU - Heyl, C. M.
AU - Manschwetus, B.
AU - Brachmanski, M.
AU - Braune, M.
AU - Lindenblatt, H.
AU - Trost, F.
AU - Meister, S.
AU - Schoch, P.
AU - Trabattoni, A.
AU - Calegari, F.
AU - Treusch, R.
AU - Moshammer, R.
AU - Hartl, I.
AU - Morgner, U.
AU - Kovacev, M.
N1 - Funding Information: We acknowledge funding from the Bundesministerium für Bil-dung und Forschung (BMBF) through the project “Synchrone VUV-Lichtquelle am FLASH II”; from the clusters of excellence “Quantum Frontiers” (EXC-2123-A05) and “PhoenixD” (EXC-2122); and from DESY, LUH, and MPIK. The publication of this article was funded by the Leibniz Universität Hannover.
PY - 2021/12/16
Y1 - 2021/12/16
N2 - We present the design, integration, and operation of the novel vacuum ultraviolet (VUV) beamline installed at the free-electron laser (FEL) FLASH. The VUV source is based on high-order harmonic generation (HHG) in gas and is driven by an optical laser system synchronized with the timing structure of the FEL. Ultrashort pulses in the spectral range from 10 to 40 eV are coupled with the FEL in the beamline FL26, which features a reaction microscope (REMI) permanent endstation for time-resolved studies of ultrafast dynamics in atomic and molecular targets. The connection of the high-pressure gas HHG source to the ultra-high vacuum FEL beamline requires a compact and reliable system, able to encounter the challenging vacuum requirements and coupling conditions. First commissioning results show the successful operation of the beamline, reaching a VUV focused beam size of about 20 μm at the REMI endstation. Proof-of-principle photo-electron momentum measurements in argon indicate the source capabilities for future two-color pump-probe experiments.
AB - We present the design, integration, and operation of the novel vacuum ultraviolet (VUV) beamline installed at the free-electron laser (FEL) FLASH. The VUV source is based on high-order harmonic generation (HHG) in gas and is driven by an optical laser system synchronized with the timing structure of the FEL. Ultrashort pulses in the spectral range from 10 to 40 eV are coupled with the FEL in the beamline FL26, which features a reaction microscope (REMI) permanent endstation for time-resolved studies of ultrafast dynamics in atomic and molecular targets. The connection of the high-pressure gas HHG source to the ultra-high vacuum FEL beamline requires a compact and reliable system, able to encounter the challenging vacuum requirements and coupling conditions. First commissioning results show the successful operation of the beamline, reaching a VUV focused beam size of about 20 μm at the REMI endstation. Proof-of-principle photo-electron momentum measurements in argon indicate the source capabilities for future two-color pump-probe experiments.
UR - http://www.scopus.com/inward/record.url?scp=85121964253&partnerID=8YFLogxK
U2 - 10.1063/5.0063225
DO - 10.1063/5.0063225
M3 - Article
AN - SCOPUS:85121964253
VL - 92
JO - Review of scientific instruments
JF - Review of scientific instruments
SN - 0034-6748
IS - 12
M1 - 123004
ER -