62 citations · 207 across the 11 of their papers we have counts for
12 papers
Free-electron decoherence: Theory and applications
Cruz I. Velasco, Valerio Di Giulio, F. Javier García de Abajo
Electron microscopy relies on the spatial coherence of electron beams to generate atomic-scale images using interference and diffraction, which can be degraded by inelastic scatter…
Toward Optimum Coupling between Free Electrons and Confined Optical Modes
Valerio Di Giulio, Evelijn Akerboom, Albert Polman +1
Free electrons are unique tools to probe and manipulate nanoscale optical fields with emerging applications in ultrafast spectromicroscopy and quantum metrology. However, advances…
Radiative loss of coherence in free electrons: a long-range quantum phenomenon
Cruz I. Velasco, Valerio Di Giulio, F. Javier García de Abajo
Quantum physics rules the dynamics of small objects as they interact over microscopic length scales. Nevertheless, quantum correlations involving macroscopic distances can be obser…
Nanophotonics for pair production
Valerio Di Giulio, F. Javier García de Abajo
The transformation of electromagnetic energy into matter represents a fascinating prediction of relativistic quantum electrodynamics that is paradigmatically exemplified by the cre…
Optical-cavity mode squeezing by free electrons
Valerio Di Giulio, F. Javier García de Abajo
The generation of nonclassical light states bears a paramount importance in quantum optics and is largely relying on the interaction between intense laser pulses and nonlinear medi…
Optical manipulation of matter waves
Kamran Akbari, Valerio Di Giulio, F. Javier García de Abajo
Light is extensively used to steer the motion of atoms in free space, enabling cooling and trapping of matter waves through ponderomotive forces and Doppler-mediated photon scatter…
Complete Excitation of Discrete Quantum Systems by Single Free Electrons
F. Javier García de Abajo, Eduardo J. C. Dias, Valerio Di Giulio
We reveal a wealth of nonlinear and recoil effects in the interaction between individual low-energy electrons and samples comprising a discrete number of states. Adopting a quantum…
Quantum-phase two-dimensional materials
Valerio Di Giulio, P. A. D. Gonçalves, F. Javier García de Abajo
The modification of electronic band structures and the subsequent tuning of electrical, optical, and thermal material properties is a central theme in the engineering and fundament…
Atomic Floquet physics revealed by free electrons
Eduardo Arqué López, Valerio Di Giulio, F. Javier García de Abajo
We theoretically investigate the ability of free electrons to yield information on the nonlinear Floquet dynamics of atomic systems subject to intense external illumination. By app…
Modulation of Cathodoluminescence Emission by Interference with External Light
Valerio Di Giulio, Ofer Kfir, Claus Ropers +1
Spontaneous processes triggered in a sample by free electrons are commonly regarded as incoherent, and therefore unable to interfere with external light sources. Here, we challenge…
Optical coherence transfer mediated by free electrons
Ofer Kfir, Valerio Di Giulio, F. Javier García de Abajo +1
We investigate theoretically the quantum-coherence properties of the cathodoluminescence (CL) emission produced by a temporally modulated electron beam. Specifically, we consider t…
Quantum violation of an instrumental test
Rafael Chaves, Gonzalo Carvacho, Iris Agresti +4
Inferring causal relations from experimental observations is of primal importance in science. Instrumental tests provide an essential tool for that aim, as they allow one to estima…