203 citations · 618 across the 14 of their papers we have counts for
14 papers
Time-resolved Ultrafast Interatomic Coulombic Decay in Superexcited Sodium-doped Helium Nanodroplets
Jakob D. Asmussen, Rupert Michiels, Ulrich Bangert +16
The autoionization dynamics of superexcited superfluid He nanodroplets doped with Na atoms is studied by extreme-ultraviolet (XUV) time-resolved electron spectroscopy. Following ex…
Studying ultrafast Rabi dynamics with a short-wavelength seeded free-electron laser
Saikat Nandi, Edvin Olofsson, Mattias Bertolino +26
Rabi oscillations are periodic modulations of populations in two-level systems interacting with a time-varying field. They are ubiquitous in physics with applications in different…
All-optical spin injection in silicon revealed by element specific time-resolved Kerr effect
Simone Laterza, Antonio Caretta, Richa Bhardwaj +18
Understanding how a spin current flows across metal-semiconductor interfaces at pico- and femtosecond timescales has implications for ultrafast spintronics, data processing and sto…
Characterization of soft X-ray echo-enabled harmonic generation free-electron laser pulses in the presence of incoherent energy modulations
N. S. Mirian, G. Perosa, E. Hemsing +14
Echo-enabled harmonic generation free-electron lasers (EEHG FELs) are promising candidates to produce fully coherent soft x-ray pulses by virtue of efficient high harmonic frequenc…
Collective enhancement of above threshold ionization by resonantly excited helium nanodroplets
R. Michiels, M. Abu-samha, L. B. Madsen +18
Clusters and nanodroplets hold the promise of enhancing high-order nonlinear optical effects due to their high local density. However, only moderate enhancement has been demonstrat…
Unravelling the Full Relaxation Dynamics of Superexcited Helium Nanodroplets
Jakob D. Asmussen, Rupert Michiels, Katrin Dulitz +20
The relaxation dynamics of superexcited superfluid He nanodroplets is thoroughly investigated by means of extreme-ultraviolet (XUV) femtosecond electron and ion spectroscopy comple…
Attosecond Pulse-shaping using a seeded free-electron laser
Praveen Kumar Maroju, Cesare Grazioli, Michele Di Fraia +41
Attosecond pulses are fundamental for the investigation of valence and core-electron dynamics on their natural timescale. At present the reproducible generation and characterisatio…
High-Gain Harmonic Generation with temporally overlapping seed pulses and application to ultrafast spectroscopy
Andreas Wituschek, Lukas Bruder, Enrico Allaria +22
Collinear double-pulse seeding of the High-Gain Harmonic Generation (HGHG) process in a free-electron laser (FEL) is a promising approach to facilitate various coherent nonlinear s…
Tracking Attosecond Electronic Coherences Using Phase-Manipulated Extreme Ultraviolet Pulses
Andreas Wituschek, Lukas Bruder, Enrico Allaria +31
The recent development of ultrafast extreme ultraviolet (XUV) coherent light sources bears great potential for a better understanding of the structure and dynamics of matter. Promi…
First measurement of the temperature dependence of muon transfer rate from muonic hydrogen atoms to oxygen
FAMU Collaboration, E. Mocchiutti, A. Adamczak +39
We report the first measurement of the temperature dependence of muon transfer rate from p atoms to oxygen between 100 and 300 K. Data were obtained from the X-ray spectra of de…
Impulsive laser-induced alignment of OCS molecules at FERMI
Michele Di Fraia, Paola Finetti, Robert Richter +13
We demonstrate the experimental realization of impulsive alignment of carbonyl sulfide (OCS) molecules at the Low Density Matter Beamline (LDM) at the free-electron laser FERMI. OC…
FAMU: study of the energy dependent transfer rate
FAMU Collaboration, E. Mocchiutti, V. Bonvicini +53
The main goal of the FAMU experiment is the measurement of the hyperfine splitting (hfs) in the 1S state of muonic hydrogen . The physical process behind this exp…
Seeded x-ray free-electron laser generating radiation with laser statistical properties
O. Yu. Gorobtsov, G. Mercurio, F. Capotondi +12
The invention of optical lasers led to a revolution in the field of optics and even to the creation of completely new fields of research such as quantum optics. The reason was thei…
Beyond the Limits of 1D Coherent Synchrotron Radiation
A. D. Brynes, P. Smorenburg, I. Akkermans +21
An understanding of collective effects is of fundamental importance for the design and optimisation of the performance of modern accelerators. In particular, the design of an accel…