Publications de Giovanni Maria Vanacore

Ultrafast generation of hidden phases via energy-tuned electronic photoexcitation in magnetite

Thomas La Grange, Fabrizio Carbone, Ivan Madan, Benoît Guilhem Michel Binh Truc, Francesco Pennacchio, Gabriele Berruto, Giovanni Maria Vanacore, Paolo Usai

Phase transitions occurring in nonequilibrium conditions can evolve through high-energy intermediate states inaccessible via equilibrium adiabatic conditions. Because of the subtle nature of such hidden phases, their direct observation is extremely challen ...

National Academy of Sciences2024

Revisiting the Excitation of the Low-Lying ^{181m}Ta Isomer in Optical Laser-Generated Plasma

Fabrizio Carbone, Ivan Madan, Benoît Guilhem Michel Binh Truc, Giovanni Maria Vanacore, Paolo Usai, Simone Gargiulo, Veronica Leccese

The excitation of the ^{181m}Ta isomer in the laser-plasma scenario was claimed to have been observed more than two decades ago. However, the reported experimental findings-and the respective high excitation rate-were later questioned as they could not be ...

2024

Generation and control of localized terahertz fields in photoemitted electron plasmas

Fabrizio Carbone, Ivan Madan, Giovanni Maria Vanacore, Francesco Barantani, Ido Kaminer, Simone Gargiulo

Dense micron-sized electron plasmas, such as those generated upon irradiation of nanostructured metallic surfaces by intense femtosecond laser pulses, constitute a rich playground to study light-matter interactions, many-body phenomena, and out-of-equilibr ...

ROYAL SOC CHEMISTRY2023

One-Dimensional "Ghost Imaging" in Electron Microscopy of Inelastically Scattered Electrons

Fabrizio Carbone, Ivan Madan, Giovanni Maria Vanacore, Ido Kaminer, Ebrahim Karimi, Simone Gargiulo

Entanglement and correlation are at the basis of quantummechanicsand have been used in optics to create a framework for "ghostimaging". We propose that a similar scheme can be used in anelectron microscope to exploit the correlation of electrons with theco ...

2023

Charge Dynamics Electron Microscopy Nanoscale Imaging of Femtosecond Plasma Dynamics

Thomas La Grange, Fabrizio Carbone, Luca Piazza, Ivan Madan, Tom Theodorus Antonius Lummen, Gabriele Berruto, Giovanni Maria Vanacore, Francesco Barantani, Ido Kaminer, Simone Gargiulo

Understanding and actively controlling the spatiotemporal dynamics of nonequilibrium electron clouds is fundamental for the design of light and electron sources, high power electronic devices, and plasma-based applications. However, electron clouds evolve ...

AMER CHEMICAL SOC2023

Ultrafast Electron Microscopy of Nanoscale Charge Dynamics in Semiconductors

Fabrizio Carbone, Ivan Madan, Giovanni Maria Vanacore, Francesco Barantani, Ido Kaminer, Kangpeng Wang, Simone Gargiulo

The ultrafast dynamics of charge carriers in solids plays a pivotal role in emerging optoelectronics, photonics, energy harvesting, and quantum technology applications. However, the investigation and direct visualization of such nonequilibrium phenomena re ...

AMER CHEMICAL SOC2023

Ultrafast Transverse Modulation of Free Electrons by Interaction with Shaped Optical Fields

Thomas La Grange, Fabrizio Carbone, Ivan Madan, Giovanni Maria Vanacore, Francesco Barantani, Ido Kaminer, Alexey Sapozhnik, Simone Gargiulo, Veronica Leccese, Phoebe Marie Tengdin

Spatiotemporal electron-beam shaping is a bold frontier of electron microscopy. Over the past decade, shaping methods evolved from static phase plates to low-speed electrostatic and magnetostatic displays. Recently, a swift change of paradigm utilizing lig ...

AMER CHEMICAL SOC2022

Longitudinal and transverse modulation of electron wave function with light, and its application to electron microscopy

Fabrizio Carbone, Ivan Madan, Enrico Pomarico, Gabriele Berruto, Giovanni Maria Vanacore, Ido Kaminer

Conventional electron microscopy operates with flat electron wave fronts. Employing attenuative or electrostatic phase plates allows transversally modulating the wave front, enhancing cross-sections of particular scattering channels. Utilization of light f ...

IEEE2021

Charge Dynamics Electron Microscopy

Fabrizio Carbone, Ivan Madan, Gabriele Berruto, Giovanni Maria Vanacore, Francesco Barantani, Ido Kaminer, Simone Gargiulo

We probe plasma dynamics with nm-fs resolution through electron spectroscopy performed in an ultrafast transmission electron microscope. This approach would allow to disentangle the dynamic evolution of plasma parameters and observe previously inaccessible ...

IEEE2021

Demonstration of Near-field THz Spectroscopy Using Ultrafast Electron Microscopy

Fabrizio Carbone, Giovanni Maria Vanacore, Ido Kaminer, Kangpeng Wang

We probe near-field THz pulses with nm-fs spatio-temporal resolution, through their interaction with free-electron pulses in an ultrafast transmission electron microscope. Our experiment can help understand THz generation and nanoscale THz phenomena. (C) 2 ...

IEEE2021

The quantum future of microscopy: Wave function engineering of electrons, ions, and nuclei

Thomas La Grange, Fabrizio Carbone, Ivan Madan, Giovanni Maria Vanacore, Simone Gargiulo

The ability to manipulate particles has always been a fundamental aspect for developing and improving scattering and microscopytechniques used for material investigations. So far, microscopy applications have mostly relied on a classical treatment of the e ...

AIP American Institute of Physics2020

Spatio-temporal shaping of a free-electron wave function via coherent light-electron interaction

Fabrizio Carbone, Ivan Madan, Giovanni Maria Vanacore

The past decade has witnessed a quantum revolution in the field of computation, communication and materials investigation. A similar revolution is also occurring for free-electron based techniques, where the classical treatment of a free electron as a poin ...

SPRINGERNATURE2020

Ultrafast generation and control of an electron vortex beam via chiral plasmonic near fields

Fabrizio Carbone, Ivan Madan, Brett Eugene Barwick, Enrico Pomarico, Gabriele Berruto, Giovanni Maria Vanacore, Ido Kaminer, Ebrahim Karimi

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 prepared via passive phase masks imprinting a transverse phase modulation o ...

2019

Holographic imaging of electromagnetic fields via electron-light quantum interference

Fabrizio Carbone, Ivan Madan, Enrico Pomarico, Tom Theodorus Antonius Lummen, Gabriele Berruto, Giovanni Maria Vanacore, Tatiana Latychevskaia

Holography relies on the interference between a known reference and a signal of interest to reconstruct both the amplitude and the phase of that signal. With electrons, the extension of holography to the ultrafast time domain remains a challenge, although ...

American Association for the Advancement of Science (AAAS)2019

Attosecond coherent control of free-electron wave functions using semi-infinite light fields (vol 9, 2694, 2018)

Mingkui Wang, Fabrizio Carbone, Ivan Madan, Brett Eugene Barwick, Enrico Pomarico, Gabriele Berruto, Giovanni Maria Vanacore, Ido Kaminer

Springer2019

meV Resolution in Laser-Assisted Energy-Filtered Transmission Electron Microscopy

Fabrizio Carbone, Ivan Madan, Enrico Pomarico, Gabriele Berruto, Giovanni Maria Vanacore, Ido Kaminer, Kangpeng Wang

The electronic, optical, and magnetic properties of quantum solids are determined by their low-energy (

2018

Laser-Induced Skyrmion Writing and Erasing in an Ultrafast Cryo-Lorentz Transmission Electron Microscope

Henrik Moodysson Rønnow, Fabrizio Carbone, Ivan Madan, Enrico Pomarico, Ping Huang, Yoshie Murooka, Gabriele Berruto, Giovanni Maria Vanacore

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 of camera-rate and pump- probe cryo-Lorentz transmission electron microscopy ...

2018

Attosecond coherent control of free-electron wave functions using semi-infinite light fields

Fabrizio Carbone, Ivan Madan, Brett Eugene Barwick, Enrico Pomarico, Gabriele Berruto, Giovanni Maria Vanacore, Ido Kaminer

Light–electron interaction is the seminal ingredient in free-electron lasers and dynamical investigation of matter. Pushing the coherent control of electrons by light to the attosecond timescale and below would enable unprecedented applications in quantum ...

Nature Research2018

Attosecond coherent control of a free-electron wave-function via semi-infinite light fields and plasmon polaritons

Fabrizio Carbone, Giovanni Maria Vanacore

AMER CHEMICAL SOC2018

Design and implementation of an optimal laser pulse front tilting scheme for ultrafast electron diffraction in reflection geometry with high temporal resolution

Fabrizio Carbone, Giulia Fulvia Mancini, Francesco Pennacchio, Rajeswari Jayaraman, Malte Oppermann, Giovanni Maria Vanacore

Ultrafast electron diffraction is a powerful technique to investigate out-of-equilibrium atomic dynamics in solids with high temporal resolution. When diffraction is performed in reflection geometry, the main limitation is the mismatch in group velocity be ...

Amer Inst Physics2017