560 citations · 1.8k across the 24 of their papers we have counts for
24 papers
Controlling Electron-Beam-Induced Charging in Colloidal Quantum Dots
Sven Ebel, Alina Myslovska, Stefano Vezzoli +2
Colloidal quantum dots (QDs) are attractive nanoscale emitters, yet their cathodoluminescence (CL) response remains poorly understood and often unstable under electron-beam excitat…
Second harmonic generation at a time-varying interface
Romain Tirole, Stefano Vezzoli, Dhruv Saxena +6
Time-varying metamaterials rely on large and fast changes of the linear permittivity. Beyond the linear terms, however, the effect of a non-perturbative modulation of the medium on…
Nonlinear dielectric epsilon near-zero hybrid nanogap antennas
Romain Tirole, Benjamin Tilmann, Leonardo de S. Menezes +3
High-index Mie-resonant dielectric nanostructures provide a new framework to manipulate light at the nanoscale. In particular their local field confinement together with their inhe…
Controlling lasing around Exceptional Points in Coupled Nanolasers
Anna Fischer, T. V. Raziman, Wai Kit Ng +7
Coupled nanolasers are of growing interest for on-chip optical computation and data transmission, which requires an understanding of how lasers interact to form complex systems. Th…
Van der Waals Materials for Applications in Nanophotonics
Panaiot G. Zotev, Yue Wang, Daniel Andres-Penares +12
Numerous optical phenomena and applications have been enabled by nanophotonic structures. Their current fabrication from high refractive index dielectrics, such as silicon or galli…
Double-slit time diffraction at optical frequencies
Romain Tirole, Stefano Vezzoli, Emanuele Galiffi +6
The wave nature of light is revealed by diffraction from physical structures. We report a time-domain version of the classic Young's double-slit experiment: a beam of light twice g…
Saturable time-varying mirror based on an ENZ material
Romain Tirole, Emanuele Galiffi, Jakub Dranczewski +9
We report a switchable time-varying mirror, composed of an ITO-Au stack, which can be efficiently modulated in time with over a ten-fold increase in reflectivity, with a change of…
Photonics of Time-Varying Media
Emanuele Galiffi, Romain Tirole, Shixiong Yin +7
Time-varying media have recently emerged as a new paradigm for wave manipulation, thanks to thesynergy between the discovery of novel, highly nonlinear materials, such as epsilon-n…
Purifying single photon emission from giant shell CdSe/CdS quantum dots at room temperature
Sergii Morozov, Stefano Vezzoli, Alina Myslovska +4
Giant shell CdSe/CdS quantum dots are bright and flexible emitters, with near-unity quantum yield and suppressed blinking, but their single photon purity is reduced by efficient mu…
Electrical control of single-photon emission in highly-charged individual colloidal quantum dots
Sergii Morozov, Evangelina L. Pensa, Ali Hossain Khan +6
Electron transfer to an individual quantum dot promotes the formation of charged excitons with enhanced recombination pathways and reduced lifetimes. Excitons with only one or two…
Objective-free excitation of quantum emitters with a laser-written micro parabolic mirror
Sergii Morozov, Stefano Vezzoli, Ali Hossain Khan +2
The efficient excitation of quantum sources such as quantum dots or single molecules requires high NA optics which is often a challenge in cryogenics, or in ultrafast optics. Here…
Broad frequency shift of parametric processes in Epsilon-Near-Zero time-varying media
Vincenzo Bruno, Stefano Vezzoli, Clayton DeVault +6
The ultrafast changes of material properties induced by short laser pulses can lead to frequency shift of reflected and transmitted radiation. Recent reports highlight how such a f…
Negative refraction in time-varying, strongly-coupled plasmonic antenna-ENZ systems
V. Bruno, C. DeVault, S. Vezzoli +14
Time-varying metasurfaces are emerging as a powerful instrument for the dynamical control of the electromagnetic properties of a propagating wave. Here we demonstrate an efficient…
Optical Analogue of the Dynamical Casimir Effect in a Dispersion-Oscillating Fibre
Stefano Vezzoli, Arnaud Mussot, Niclas Westerberg +6
The dynamical Casimir effect is the generation of pairs of real particles or photons from the vacuum as a result of a non-adiabatic change of a system parameter or boundary conditi…
Nanoscale design of the local density of optical states
Sandro Mignuzzi, Stefano Vezzoli, Simon A. R. Horsley +3
We propose a design concept for tailoring the local density of optical states (LDOS) in dielectric nanostructures, based on the phase distribution of the scattered optical fields i…
How fast is a twisted photon?
Thomas Roger, Ashley Lyons, Niclas Westerberg +5
Recent measurements have highlighted that spatially shaped photons travel slower than c, the speed of monochromatic, plane waves in vacuum. Here we investigate the intrinsic delay…
Optical time reversal from time-dependent Epsilon-Near-Zero media
Stefano Vezzoli, Vincenzo Bruno, Clayton DeVault +7
Materials with a spatially uniform but temporally varying optical response have applications ranging from magnetic field-free optical isolators to fundamental studies of quantum fi…
Coherent metamaterial absorption of two-photon states with 40% efficiency
Ashley Lyons, Dikla Oren, Thomas Roger +6
Multi-photon absorption processes have a nonlinear dependence on the amplitude of the incident optical field i.e. the number of photons. However, multi-photon absorption is general…
Spontaneous photon production in time-dependent epsilon-near-zero materials
A. Prain, S. Vezzoli, N. Westerberg +2
Quantum field theory predicts that a spatially homogeneous but temporally varying medium will excite photon pairs out of the vacuum state. However, this important theoretical predi…
Nonlocal control of dissipation with entangled photons
Charles Altuzarra, Stefano Vezzoli, Joao Valente +4
Quantum nonlocality, i.e. the presence of strong correlations in spatially seperated systems which are forbidden by local realism, lies at the heart of quantum communications and q…
Coherent perfect absorption in deeply subwavelength films in the single photon regime
Thomas Roger, Stefano Vezzosi, Eliot Bolduc +8
The technologies of heating, photovoltaics, water photocatalysis and artificial photosynthesis depend on the absorption of light and novel approaches such as coherent absorption fr…
Quantum super-oscillation of a single photon
Guanghui Yuan, Stefano Vezzoli, Charles Altuzarra +4
Super-oscillation is a counter-intuitive phenomenon describing localized fast variations of functions and fields that happen at frequencies higher than the highest Fourier componen…
Optical interferometry in the presence of large phase diffusion
Marco G. Genoni, Stefano Olivares, Davide Brivio +5
Phase diffusion represents a crucial obstacle towards the implementation of high precision interferometric measurements and phase shift based communication channels. Here we presen…
Experimental estimation of one-parameter qubit gates in the presence of phase diffusion
D. Brivio, S. Cialdi, S. Vezzoli +4
We address estimation of one-parameter qubit gates in the presence of phase diffusion. We evaluate the ultimate quantum limits to precision, seek for optimal probes and measurement…