Free electron laser stochastic spectroscopy revealing silicon bond softening dynamics

Angelis, Dario De; Principi, Emiliano; Bencivenga, Filippo; Fausti, Daniele; Foglia, Laura; Klein, Yishay; Manfredda, Michele; Mincigrucci, Riccardo; Montanaro, Angela; Pedersoli, Emanuele; Cresi, Jacopo Stefano Pelli; Perosa, Giovanni; Razzoli, Elia; Shwartz, Sharon; Simoncig, Alberto; Spampinati, S.; Svetina, Cristian; Szlachetko, Jakub; Tripathi, Amita; Vartaniants, Ivan; Zangrando, Marco; Capotondi, Flavio

doi:10.1103/physrevb.107.214305

Cited by 2 publications

(1 citation statement)

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“…Moreover, further instrumental developments on the TIMEX beamline at FERMI are planned in order to host a liquid jet setup. With this setting, correlation-based spectroscopy measurements can be allowed (De Angelis et al, 2023), which improve the efficiency of the measurement.…”

Section: Discussionmentioning

confidence: 99%

A sub-100 nm thickness flat jet for extreme ultraviolet to soft X-ray absorption spectroscopy

De Angelis,

Longetti,

Bonano

et al. 2024

J Synchrotron Radiat

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Experimental characterization of the structural, electronic and dynamic properties of dilute systems in aqueous solvents, such as nanoparticles, molecules and proteins, are nowadays an open challenge. X-ray absorption spectroscopy (XAS) is probably one of the most established approaches to this aim as it is element-specific. However, typical dilute systems of interest are often composed of light elements that require extreme-ultraviolet to soft X-ray photons. In this spectral regime, water and other solvents are rather opaque, thus demanding radical reduction of the solvent volume and removal of the liquid to minimize background absorption. Here, we present an experimental endstation designed to operate a liquid flat jet of sub-micrometre thickness in a vacuum environment compatible with extreme ultraviolet/soft XAS measurements in transmission geometry. The apparatus developed can be easily connected to synchrotron and free-electron-laser user-facility beamlines dedicated to XAS experiments. The conditions for stable generation and control of the liquid flat jet are analyzed and discussed. Preliminary soft XAS measurements on some test solutions are shown.

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Section: Discussionmentioning

confidence: 99%