Fabrizio Carbone

Biography

Birth 20/04/1976

Master degree: University of Pavia "optoelectronic engineering". September 2001.

Reasearch scientist at Pirelli Labs, Milan Italy between September 2000 and August 2002.

PhD in condensed matter physics from the University of Geneva, prof. van der Marel gorup. January 2007

Post doc in physical chemistry at Caltech in prof. Zewail`s group. March 2007-April 2009

Official source

https://people.epfl.ch/fabrizio.carbone

About this result

This page is automatically generated and may contain information that is not correct, complete, up-to-date, or relevant to your search query. The same applies to every other page on this website. Please make sure to verify the information with EPFL's official sources.

Related units (5)

Related units

Courses taught by this person (2)

Courses taught by this person

Related research domains (70)

Related research domains

Related publications (78)

Related publications

People doing similar research (97)

People doing similar research

Charge Dynamics Electron Microscopy Nanoscale Imaging of Femtosecond Plasma Dynamics

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

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 in a complex collective fashion on the nanometer and femtosecond scales, producing electromagnetic screening that renders them inaccessible to existing optical probes. Here, we solve the long-standing challenge of characterizing the evolution of electron clouds generated upon irradiation of metallic structures using an ultrafast transmission electron microscope to record the charged plasma dynamics. Our approach to charge dynamics electron microscopy (CDEM) is based on the simultaneous detection of electron-beam acceleration and broadening with nanometer/femtosecond resolution. By combining experimental results with comprehensive microscopic theory, we provide a deep understanding of this highly out-of-equilibrium regime, including previously inaccessible intricate microscopic mechanisms of electron emission, screening by the metal, and collective cloud dynamics. Beyond the present specific demonstration, the here-introduced CDEM technique grants us access to a wide range of nonequilibrium electrodynamic phenomena involving the ultrafast evolution of bound and free charges on the nanoscale.

AMER CHEMICAL SOC2023

, , , , ,

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-equilibrium charge dynamics. Besides their fundamental interest, laser-induced plasmas hold great potential for the generation of localized terahertz radiation pulses. However, the underlying mechanisms ruling the formation and evolution of such plasmas are not yet well understood. Here, we develop a comprehensive microscopic theory to predictably describe the spatiotemporal dynamics of laser-pulse-induced plasmas. Through detailed analysis of electron emission, metal screening, and plasma cloud interactions, we investigate the spatial, temporal, and spectral characteristics of the so-generated terahertz fields, which can be extensively controlled through the metal morphology and the illumination conditions. We further describe the interaction with femtosecond electron beams to explain recent ultrafast electron microscopy experiments, whereby the position and temporal dependence of the observed electron acceleration permits assessing the associated terahertz field. Besides its potential application to the design of low-frequency light sources, our work contributes fundamental insight into the generation and dynamics of micron-scale electron plasmas and their interaction with ultrafast electron pulses.

ROYAL SOC CHEMISTRY2023

, , , , ,

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 thecoincident detection of collective mode excitations in a sample. Inthis way, an image of the sample can be formed on an electron cameraeven if electrons never illuminated the region of interest directly.This concept, which can be regarded as the inverse of photon-inducednear-field electron microscopy, can be used to probe delicate moleculeswith a resolution that is beyond the wavelength of the collectivemode.

AMER CHEMICAL SOC2023