activity
20212026
most citedCathodoluminescence excitation spectroscopy: nanoscale imaging of excitation pathways

72 citations · 233 across the 14 of their papers we have counts for

collaborators

14 papers

physics.optics2026

Absolute measurement of the intrinsic helicity in nanophotonics

Malo Bézard, Simon Garrigou, Jérémie Béal +5

Helicity is a universal quantity describing the internal rotation of an object or a field. Whether it characterizes fundamental properties such as the spin of elementary particles…

cond-mat.mtrl-sci2025★ 3 cited

Cathodoluminescence, light injection and EELS in STEM: From comparative to coincidence experiments

Luiz H. G. Tizei, Yves Auad, Florian Castioni +1

Electron spectroscopy implemented in electron microscopes provides high spatial resolution, down to the atomic scale, of the chemical, electronic, vibrational and optical propertie…

physics.ins-det2025★ 2 cited

Advancing Time-Resolved Spectroscopies with Custom Scanning Units and Event-Based Electron Detection

Yves Auad, Florian Castioni, Jassem Baaboura +9

Direct electron detection is revolutionizing electron microscopy by offering lower noise, reduced point-spread function, and increased quantum efficiency. Among these advancements,…

cond-mat.mes-hall2025

Roadmap for Quantum Nanophotonics with Free Electrons

F. Javier García de Abajo, Albert Polman, Cruz I. Velasco +44

Over the past century, continuous advancements in electron microscopy have enabled the synthesis, control, and characterization of high-quality free-electron beams. These probes ca…

cond-mat.mtrl-sci2024★ 17 cited

Nanosecond nanothermometry in an electron microscope

Florian Castioni, Yves Auad, Jean-Denis Blazit +8

Thermal transport in nanostructures plays a critical role in modern technologies. As devices shrink, techniques that can measure thermal properties at nanometer and nanosecond scal…

physics.ins-det2023★ 13 cited

Time calibration studies for the Timepix3 hybrid pixel detector in electron microscopy

Yves Auad, Jassem Baaboura, Jean-Denis Blazit +4

Direct electron detection is currently revolutionizing many fields of electron microscopy due to its lower noise, its reduced point-spread function, and its increased quantum effic…

physics.optics2023★ 1 cited

High efficiency coupling of free electrons to sub- modal volume, high-Q photonic cavities

Malo Bézard, Imène Si Hadj Mohand, Luigi Ruggierio +6

We report on the design, realization and experimental investigation by spatially resolved monochromated electron energy loss spectroscopy (EELS) of high quality factor cavities wit…

cond-mat.mtrl-sci2023★ 2 cited

Excitation's lifetime extracted from electron-photon (EELS-CL) nanosecond-scale temporal coincidences

Nadezda Varkentina, Yves Auad, Steffi Y. Woo +9

Electron-photon temporal correlations in electron energy loss (EELS) and cathodoluminescence (CL) spectroscopies have recently been used to measure the relative quantum efficiency…

cond-mat.mes-hall2022★ 29 cited

eV electron spectromicroscopy using free-space light

Yves Auad, Eduardo J. C. Dias, Marcel Tencé +7

The synergy between free electrons and light has recently been leveraged to reach an impressive degree of simultaneous spatial and spectral resolution, enabling applications in mic…

physics.optics2022★ 35 cited

Tunneling-current-induced local excitonic luminescence in p-doped WSe monolayers

Ricardo Javier Peña Román, Yves Auad, Lucas Grasso +3

We have studied the excitonic properties of exfoliated tungsten diselenide (WSe) monolayers transferred to gold substrates using the tunneling current in a Scanning Tunneling M…

cond-mat.mes-hall2022★ 72 cited

Cathodoluminescence excitation spectroscopy: nanoscale imaging of excitation pathways

Nadezda Varkentina, Yves Auad, Steffi Y. Woo +9

Following the lifespan of optical excitations from their creation to decay into photons is crucial in understanding materials optical properties. Macroscopically, techniques such a…

physics.optics2021★ 34 cited

Unveiling the coupling of single metallic nanoparticles to whispering-gallery microcavities

Yves Auad, Cyrille Hamon, Marcel Tencé +6

Whispering-gallery mode resonators host multiple trapped narrowband circulating optical resonances that find applications in quantum electrodynamics, optomechanics, and sensing. Ho…

physics.ins-det2021

Event-based hyperspectral EELS: towards nanosecond temporal resolution

Yves Auad, Michael Walls, Jean-Denis Blazit +5

The acquisition of a hyperspectral image is nowadays a standard technique used in the scanning transmission electron microscope. It relates the spatial position of the electron pro…

cond-mat.mtrl-sci2021★ 25 cited

Time-Resolved Cathodoluminescence in an Ultrafast Transmission Electron Microscope

S. Meuret, L. H. G. Tizei, F. Houdellier +6

Ultra-fast transmission electron microscopy (UTEM) combines sub-picosecond time-resolution with the versatility of TEM spectroscopies. It allows one to study the dynamics of materi…