240 citations · 845 across the 18 of their papers we have counts for
18 papers
Report on the Advanced Linear Collider Study Group (ALEGRO) Workshop 2026
L. Verra, P. Muggli, B. Cross +56
The 7th ALEGRO workshop, hosted by INFN Frascati National Laboratories from 3rd to 5th March 2026, brought together the international Advanced Novel Accelerators (ANA) community to…
Mitigation of the Microbunching Instability Through Transverse Landau Damping
A. D. Brynes, G. Perosa, C. -Y. Tsai +14
The microbunching instability has been a long-standing issue for high-brightness free-electron lasers (FELs), and is a significant show-stopper to achieving full longitudinal coher…
Strong-field quantum control in the extreme ultraviolet using pulse shaping
Fabian Richter, Ulf Saalmann, Enrico Allaria +40
Tailored light-matter interactions in the strong coupling regime enable the manipulation and control of quantum systems with up to unit efficiency, with applications ranging from q…
Nanoscale transient polarization gratings
Laura Foglia, Björn Wehinger, Giovanni Perosa +24
We present the generation of transient polarization gratings at the nanoscale, achieved using a tailored accelerator configuration of the FERMI free electron laser. We demonstrate…
Extreme ultraviolet wave packet interferometry of the autoionizing HeNe dimer
Daniel Uhl, Andreas Wituschek, Rupert Michiels +24
Femtosecond extreme ultraviolet wave packet interferometry (XUV-WPI) was applied to study resonant inter-atomic Coulombic decay (ICD) in the HeNe dimer. The high demands on phase s…
High-resolution absorption measurements with free-electron lasers using ghost spectroscopy
Yishai Klein, Edward Strizhevsky, Flavio Capotondi +10
We demonstrate a simple and robust high-resolution ghost spectroscopy approach for x-ray and extreme ultraviolet absorption spectroscopy at free-electron laser sources. Our approac…
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…
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…
Microbunching Instability Characterisation via Temporally Modulated Laser Pulses
A. D. Brynes, I. Akkermans, E. Allaria +19
High-brightness electron bunches, such as those generated and accelerated in free-electron lasers (FELs), can develop small-scale structure in the longitudinal phase space. This ca…
Nano-Fabricated Free-Standing Wire-Scanners with Sub-Micrometer Resolution
G. L. Orlandi, C. David, E. Ferrari +10
Diagnostics of the beam transverse profile with ever more demanding spatial resolution is required by the progress on novel particle accelerators - such as laser and plasma driven…
A new method for measuring angle-resolved phases in photoemission
Daehyun You, Kiyoshi Ueda, Elena V. Gryzlova +33
Quantum mechanically, photoionization can be fully described by the complex photoionization amplitudes that describe the transition between the ground state and the continuum state…
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…
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…
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…
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…
Spectro-temporal shaping of seeded free-electron laser pulses
David Gauthier, Primož Rebernik Ribič, Giovanni De Ninno +8
We demonstrate the ability to control and shape the spectro-temporal content of extreme-ultraviolet (XUV) pulses produced by a seeded free-electron laser (FEL). The control over th…
Two-colour generation in a chirped seeded Free-Electron Laser
B. Mahieu, E. Allaria, D. Castronovo +17
We present the experimental demonstration of a method for generating two spectrally and temporally separated pulses by an externally seeded, single-pass free-electron laser operati…