Publications (19)
IRIDE White Book, An Interdisciplinary Research Infrastructure based on Dual Electron linacs&lasers
D. Alesini, M. Alessandroni, M. P. Anania +211
This report describes the scientific aims and potentials as well as the preliminary technical design of IRIDE, an innovative tool for multi-disciplinary investigations in a wide fi…
EuPRAXIA@SPARC_LAB Design study towards a compact FEL facility at LNF
M. Ferrario, D. Alesini, M. P. Anania +117
On the wake of the results obtained so far at the SPARC\_LAB test-facility at the Laboratori Nazionali di Frascati (Italy), we are currently investigating the possibility to design…
Tunable electronic structure and stoichiometry dependent disorder in Nanostructured VO films
A. Delia, S. J. Rezvani, N. Zema +9
We present and discuss an original method to synthesize disordered Nanostructured (NS) VO films with controlled stoichiometry and tunable electronic structures. In these NS fil…
Time-resolved study of resonant interatomic Coulombic decay in helium nanodroplets
A. C. LaForge, R. Michiels, Y. Ovcharenko +30
When weakly-bound complexes are multiply excited by intense electromagnetic radiation, energy can be exchanged between neighboring atoms through a type of resonant interatomic Coul…
CITIUS: an IR-XUV light source for fundamental and applied ultrafast science
C. Grazioli, C. Callegari, A. Ciavardini +15
We present the main features of CITIUS, a new light source for ultrafast science, generating tunable, intense, femtosecond pulses in the spectral range from IR to XUV. The XUV puls…
Observation of sequential three-body dissociation of camphor molecule -- a native frame approach
S. De, S. Mandal, Sanket Sen +11
The three-body dissociation dynamics of the dicationic camphor molecule (CHO) resulting from Auger decay are investigated using soft X-ray synchrotron radiatio…
Evolution and ion kinetics of a XUV-induced nanoplasma in ammonia clusters
R. Michiels, A. C. LaForge, M. Bohlen +14
High-intensity extreme ultraviolet (XUV) pulses from a free-electron laser can be used to create a nanoplasma in clusters. In Ref. [Michiels et al. PCCP, 2020; 22: 7828-7834] we in…
Autoionization dynamics of He nanodroplets resonantly excited by intense XUV laser pulses
Y. Ovcharenko, A. LaForge, B. Langbehn +16
The ionization dynamics of helium droplets in a wide size range from 220 to 10^6 He atoms irradiated with intense femtosecond extreme ultraviolet (XUV) pulses of 10^9 ÷ 10^{12} W/…
Fully-tunable femtosecond laser source in the ultraviolet spectral range
B. Mahieu, S. Coraggia, C. Callegari +10
We demonstrate experimentally the full tunability of a coherent femtosecond source in the whole ultraviolet spectral region. The experiment relies on the technique of high-order ha…
Ultrafast relaxation of photoexcited superfluid He nanodroplets
M. Mudrich, A. LaForge, F. Stienkemeier +21
The relaxation of photoexcited nanosystems is a fundamental process of light-matter interaction. Depending on the couplings of the internal degrees of freedom, relaxation can be ul…
Penning Spectroscopy and Structure of Acetylene Oligomers in He Nanodroplets
S. Mandal, R. Gopal, M. Shcherbinin +8
Embedded atoms or molecules in a photoexcited He nanodroplet are well-known to be ionized through inter-atomic relaxation in a Penning process. In this work, we investigate the Pen…
Time-resolved chiral X-Ray photoelectron spectroscopy with transiently enhanced atomic site-selectivity: a Free Electron Laser investigation of electronically excited fenchone enantiomers
D. FaccialÃ, M. Devetta, S. Beauvarlet +28
Chiral molecules are widespread in nature, playing a fundamental role in bio-chemical processes and in the origin of life itself. The observation of dynamics in chiral molecules is…
Penning ionization of doped helium nanodroplets following EUV excitation
D. Buchta, S. R. Krishnan, N. B. Brauer +11
Helium nanodroplets are widely used as a cold, weakly interacting matrix for spectroscopy of embedded species. In this work we excite or ionize doped He droplets using synchrotron…
Time-resolved observation of interatomic Coulombic decay induced by two-photon double excitation of Ne
T. Takanashi, N. V. Golubev, C. Callegari +46
The hitherto unexplored two-photon doubly-excited states [Ne()] were experimentally identified using the seeded, fully coherent, intense extreme ultraviolet…
Collective Autoionization in Multiply-Excited Systems: A novel ionization process observed in Helium Nanodroplets
A. C. LaForge, M. Drabbels, N. Brauer +19
Free electron lasers (FELs) offer the unprecedented capability to study reaction dynamics and image the structure of complex systems. When multiple photons are absorbed in complex…
EUV ionization of pure He nanodroplets: Mass-correlated photoelectron imaging, Penning ionization and electron energy-loss spectra
D. Buchta, S. R. Krishnan, N. B. Brauer +11
The ionization dynamics of pure He nanodroplets irradiated by EUV radiation is studied using Velocity-Map Imaging PhotoElectron-PhotoIon COincidence (VMI-PEPICO) spectroscopy. We p…
Coherent control with a short-wavelength Free Electron Laser
K. C. Prince, E. Allaria, C. Callegari +37
XUV and X-ray Free Electron Lasers (FELs) produce short wavelength pulses with high intensity, ultrashort duration, well-defined polarization and transverse coherence, and have bee…
Enhanced ionization of embedded clusters by Electron Transfer Mediated Decay in helium nanodroplets
A. C. LaForge, V. Stumpf, K. Gokhberg +13
Here, we report the observation of electron transfer mediated decay (ETMD) involving Mg clusters embedded in helium nanodroplets which is initiated by the ionization of helium foll…
Strain induced orbital dynamics across the Metal Insulator transition in thin VO2/TiO2(001) films
A. D'Elia, S. J. Rezvani, A. Cossaro +6
VO2 is a strongly correlated material, which undergoes a reversible metal insulator transition (MIT) coupled to a structural phase transition upon heating (T= 67° C). Since its di…