TY  - JOUR
AU  - Wanie, Vincent
AU  - Riabchuk, Sergei
AU  - Colaizzi, Lorenzo
AU  - Galli, Mara
AU  - Maansson, Erik
AU  - Trabattoni, Andrea
AU  - Wahid, Ammar Bin
AU  - Hahne, Josina
AU  - Cartella, Andrea
AU  - Saraswathula, Krishna
AU  - Frassetto, Fabio
AU  - Pereira Lopes, D.
AU  - Martinez Vazquez, R.
AU  - Osellame, R.
AU  - poletto, luca
AU  - Légaré, F.
AU  - Nisoli, M.
AU  - Calegari, Francesca
TI  - A flexible beamline combining XUV attosecond pulses with few-femtosecond UV and near-infrared pulses for time-resolved experiments
JO  - Review of scientific instruments
VL  - 95
IS  - 8
SN  - 0034-6748
CY  - [Erscheinungsort nicht ermittelbar]
PB  - American Institute of Physics
M1  - PUBDB-2024-05396
SP  - 083004
PY  - 2024
AB  - We describe a beamline where few-femtosecond ultraviolet (UV) pulses are generated and synchronized to few-cycle near-infrared (NIR) and extreme ultraviolet (XUV) attosecond pulses. The UV light is obtained via third-harmonic generation in argon or neon gas when focusing a phase-stabilized NIR driving field inside a glass cell that was designed to support high pressures for enhanced conversion efficiency. A recirculation system allows reducing the large gas consumption required for the nonlinear process. Isolated attosecond pulses are generated using the polarization gating technique and the photon spectrometer employed to characterize the XUV radiation consists of a new design based on the combination of a spherical varied-line-space grating and a cylindrical mirror. This design allows for compactness while providing a long entrance arm for integrating different experimental chambers. The entire interferometer is built under vacuum to prevent both absorption of the XUV light and dispersion of the UV pulses and it is actively stabilized to ensure an attosecond delay stability during experiments. This table-top source has been realized with the aim of investigating UV-induced electron dynamics in neutral states of bio-relevant molecules, but it also offers the possibility to implement a manifold of novel time-resolved experiments based on photo-ionization/excitation of gaseous and liquid targets by ultraviolet radiation. UV pump – XUV probe measurements in ethyl-iodide showcase the capabilities of the attosecond beamline.
LB  - PUB:(DE-HGF)16
C6  - 39162605
UR  - <Go to ISI:>//WOS:001294538100005
DO  - DOI:10.1063/5.0190889
UR  - https://bib-pubdb1.desy.de/record/612578
ER  -