200 citations · 1k across the 21 of their papers we have counts for
21 papers
Ultrafast momentum-resolved visualization of the interplay between phonon-mediated scattering and plasmons in graphite
Francesco Barantani, Rémi Claude, Fadil Iyikanat +7
Scattering between individual charges and collective modes in materials governs fundamental phenomena such as electrical resistance, energy dissipation, switching between different…
Revisiting the excitation of the low-lying Ta isomer in optical laser-generated plasma
Simone Gargiulo, Ivan Madan, Benoit Truc +5
The excitation of the Ta isomer in the laser-plasma scenario was claimed to have been observed more than two decades ago. However, the reported experimental finding…
Generation and control of localized terahertz fields in photoemitted electron plasmas
Eduardo J. C. Dias, I. Madan, S. Gargiulo +6
Dense micron-sized electron plasmas, such as those generated upon irradiation of nanostructured metallic surfaces by intense femtosecond laser pulses, constitute a rich playground…
Observation of a new light-induced skyrmion phase in the Mott insulator Cu2OSeO3
Alexey A. Sapozhnik, Benoit Truc, Phoebe Tengdin +10
We report the discovery of a novel skyrmion phase in the multiferroic insulator Cu2OSeO3 for magnetic fields below the equilibrium skyrmion pocket. This phase can be accessed by ex…
Ultrafast generation of hidden phases via energy-tuned electronic photoexcitation in magnetite
B. Truc, P. Usai, F. Pennacchio +8
Metal-insulator transitions (MIT) occurring in non-adiabatic conditions can evolve through high-energy intermediate states that are difficult to observe and control via static meth…
Ultrafast Transverse Modulation of Free Electrons by Interaction with Shaped Optical Fields
I. Madan, V. Leccese, A. Mazur +11
Spatio-temporal shaping of electron beams is a bold frontier in electron microscopy, enabling new routes toward spatial-resolution enhancement, selective probing, low-dose imaging…
Ultrafast Electron Microscopy of Nanoscale Charge Dynamics in Semiconductors
Michael Yannai, Raphael Dahan, Alexey Gorlach +11
The ultrafast dynamics of charge carriers in solids plays a pivotal role in emerging optoelectronics, photonics, energy harvesting, and quantum technology applications. However, th…
Charge dynamics electron microscopy: nanoscale imaging of femtosecond plasma dynamics
Ivan Madan, Eduardo J. C. Dias, Simone Gargiulo +11
Understanding and actively controlling the spatio-temporal dynamics of non-equilibrium electron clouds is fundamental for the design of light and electron sources, novel high-power…
Nuclear Excitation by Muon Capture
Simone Gargiulo, Ming Feng Gu, Fabrizio Carbone +1
Efficient excitation of nuclei via exchange of a real or virtual photon has a fundamental importance for nuclear science and technology development. Here, we present a new mechanis…
Imaging the ultrafast coherent control of a skyrmion crystal
Phoebe Tengdin, Benoit Truc, Alexey Sapozhnik +14
Exotic magnetic textures emerging from the subtle interplay between thermodynamic and topological fluctuation have attracted intense interest due to their potential applications in…
Resonant Inelastic X-ray Scattering Study of Electron-Exciton Coupling in High-Tc Cuprates
F. Barantani, M. K. Tran, I. Madan +14
Explaining the mechanism of superconductivity in the high- cuprates requires an understanding of what causes electrons to form Cooper pairs. Pairing can be mediated by phonons…
Nuclear Excitation by Electron Capture in Excited Ions
Simone Gargiulo, Ivan Madan, Fabrizio Carbone
A nuclear excitation following the capture of an electron in an empty orbital has been recently observed for the first time. So far, the evaluation of the cross section of the proc…
Nanoscale-femtosecond dielectric response of Mott insulators captured by two-colour near-field ultrafast electron microscopy
Xuewen Fu, Francesco Barantani, Simone Gargiulo +8
Characterizing and controlling the out-of-equilibrium state of nanostructured Mott insulators hold great promises for emerging quantum technologies while providing an exciting play…
Stacking transition in rhombohedral graphite
Tataiana Latychevskaia, Seok-Kyun Son, Yaping Yang +8
Few layer graphene (FLG) has been recently intensively investigated for its variable electronic properties defined by a local atomic arrangement. While the most natural layers arra…
Ultrafast holography enabled by quantum interference of ultrashort electrons
I. Madan, G. M. Vanacore, E. Pomarico +7
Holography relies on the interference between a known reference and a signal of interest to reconstruct both the amplitude and phase of that signal. Commonly performed with photons…
Ultrafast Generation and Control of an Electron Vortex Beam via Chiral Plasmonic Near Fields
G. M. Vanacore, G. Berruto, I. Madan +12
Vortex-carrying matter waves, such as chiral electron beams, are of significant interest in both applied and fundamental science. Continuous wave electron vortex beams are commonly…
From attosecond to zeptosecond coherent control of free-electron wave functions using semi-infinite light fields
G. M. Vanacore, I. Madan, G. Berruto +8
Light-electron interaction in empty space is the seminal ingredient for free-electron lasers and also for controlling electron beams to dynamically investigate materials and molecu…
meV resolution in laser-assisted energy-filtered transmission electron microscopy
E. Pomarico, I. Madan, G. Berruto +5
The electronic, optical, and magnetic properties of quantum solids are determined by their low-energy (< 100 meV) many-body excitations. Dynamical characterization and manipulation…
Laser-Induced Skyrmion Writing and Erasing in an Ultrafast Cryo-Lorentz Transmission Electron Microscopy
G. Berruto, I. Madan, Y. Murooka +11
We demonstrate that light-induced heat pulses of different duration and energy can write skyrmions in a broad range of temperatures and magnetic field in FeGe. Using a combination…
Dynamics of the superconducting order parameter through ultrafast normal-to-superconducting phase transition in BiSrCaCuO from multi-pulse polarization-resolved transient optical reflectivity
I. Madan, V. V. Baranov, Y. Toda +5
A systematic temperature dependent study of the femtosecond optical superconducting (SC) state destruction and recovery in BiSrCaCuO cuprate superconducto…
Dynamics of broken symmetry nodal and anti-nodal excitations in Bi_{2} Sr_{2} CaCu_{2} O_{8+δ} probed by polarized femtosecond spectroscopy
Y. Toda, F. Kawanokami, T. Kurosawa +5
The dynamics of excitations with different symmetry is investigated in the superconducting (SC) and normal state of the high-temperature superconductor BiSrCaCuO$…