Publications by Edoardo Charbon

A Cryo-CMOS Wideband Mode-Switching Class-F VCO With Harmonic-Resonance Self-Alignment

This article presents a cryogenic mode-switching class-F voltage-controlled oscillator (VCO) aimed at addressing the demand for wideband, low phase noise (PN) local oscillator signals in cryo-CMOS quantum controllers. First, to resolve the issues of manual ...

2025

16-band single-photon imaging sensor based on Fabry-Perot resonance

Edoardo Charbon, Olivier Martin

We have demonstrated a 16 wavelength selective spectral bands imaging sensor-based Fabry-Perot (FP) structure for use in the near-infrared wavelength band (715 nm-915 nm). The designed structure consists of two symmetric SiC/SiO2 distributed Bragg reflecto ...

Optica Publishing Group2025

Multifrequency-resolved Hanbury Brown–Twiss effect

Claudio Bruschini, Edoardo Charbon, Samuel Burri, Tommaso Milanese

The Hanbury Brown–Twiss (HBT) effect holds a pivotal place in intensity interferometry and gave a seminal contribution to the development of quantum optics. To observe such an effect, both good spectral and timing resolutions are necessary. Most often, the ...

AIP Publishing2025

Harnessing Photon Indistinguishability in Quantum Extreme Learning Machines

Edoardo Charbon

This study investigates Quantum Extreme Learning Machines (QELMs), which enhance classical Extreme Learning Machines (ELMs) by incorporating quantum features. ...

IEEE2025

Optimizing photon capture: advancements in amorphous silicon-based microchannel plates

Christophe Ballif, Claudio Bruschini, Edoardo Charbon, Nicolas Würsch, Luca Massimiliano Antognini, Samira Alexandra Frey, Emanuele Ripiccini

Microchannel plates are electron multipliers widely used in applications such as particle detection, imaging, or mass spectrometry and are often paired with a photocathode to enable photon detection. Conventional microchannel plates, made of glass fibers, ...

2025

Teaching single-photon detection metrology with off-the-shelf CMOS SPAD detectors

Claudio Bruschini, Edoardo Charbon, Ekin Kizilkan, Utku Karaca

The fabrication of the first CMOS single-photon avalanche diodes (SPADs) back in 2003 paved the way to a range of photodetection applications based on single-photon detection, photon counting, and photon time-stamping. In turn, it has become more and more ...

SPIE2025

Predicting Important Photons for Energy-Efficient Single-Photon Videography

Claudio Bruschini, Edoardo Charbon

Single-photon avalanche diodes (SPAD) detect individual photons with fine temporal resolutions, enabling capabilities like imaging in near-total darkness, extreme dynamic range, and rapid motion. Due to these capabilities, and coupled with the recent emerg ...

2025

Fast data-driven spectrometer with direct measurement of time and frequency for multiple single photons

Claudio Bruschini, Edoardo Charbon, Samuel Burri

We present a single-photon-sensitive spectrometer based on a linear array of 512 single-photon avalanche diode detectors with 0.04 nm spectral and 40 ps temporal resolutions. We employ a fast data-driven operation that allows direct measurement of time and ...

2025

Self-heating Effects in RF Region of FDSOI MOSFETs at Cryogenic Temperatures

Christian Enz, Edoardo Charbon, Hung-Chi Han

Radio-frequency (RF) circuits are crucial to qubit manipulation, for which transistor self-heating effects may influence performance and possibly change the quantum state. This paper presents an analytical RF model of FDSOI MOSFETs considering dynamic self ...

Institute of Electrical and Electronics Engineers (IEEE)2025

Event Cameras Meet SPADs for High-Speed, Low-Bandwidth Imaging

Edoardo Charbon

Traditional cameras face a trade-off between low-light performance and high-speed imaging: longer exposure times to capture sufficient light results in motion blur, whereas shorter exposures result in Poisson-corrupted noisy images. While burst photography ...

Institute of Electrical and Electronics Engineers (IEEE)2025

Beneath the surface: revealing deep-tissue blood flow in human subjects with massively parallelized diffuse correlation spectroscopy

Claudio Bruschini, Edoardo Charbon, Arin Can Ülkü, Michael Alan Wayne

Significance: Diffuse correlation spectroscopy (DCS) allows label-free, non-invasive investigation of microvascular dynamics deep within tissue, such as cerebral blood flow (CBF). However, the signal-to-noise ratio (SNR) in DCS limits its effective cerebra ...

SPIE-Intl Soc Optical Eng2025

Empirical Finfet Cryo-Model Oriented to Integrated Circuits Design

Edoardo Charbon

In this paper we propose a new empirical formulation for modelling the DC drain-current behaviour of CMOS technology devices for RF applications oriented to quantum computing integrated circuits. The approach is based on the well-known Angelov's model, tha ...

Institute of Electrical and Electronics Engineers Inc.2025

Wide-field fluorescence lifetime imaging of single molecules with a gated single-photon camera

Claudio Bruschini, Edoardo Charbon, Aleksandra Radenovic, Matteo Dal Peraro, Nathan Cyprien Arsène Ronceray

Fluorescence lifetime imaging microscopy (FLIM) is a powerful tool to discriminate fluorescent molecules or probe their nanoscale environment. Traditionally, FLIM uses time-correlated single-photon counting (TCSPC), which is precise but intrinsically low-t ...

2025

Cryogenic sEKV Compact Model Applied to 22 NM FDSOI Enabling Low-Temperature Circuit Simulation

Christian Enz, Edoardo Charbon, Hung-Chi Han

IEEE2025

Mesoscopic light-sheet imaging set-up for 3D SWIR fluorescence intensity and NIR fluorescence lifetime imaging

Claudio Bruschini, Edoardo Charbon

Fluorescence lifetime imaging offers the unique ability to monitor the molecular status of the tissue microenvironment. However, the scattering nature of tissues remains a challenge for mesoscopic 3D high resolution imaging. We introduce the design of a me ...

SPIE2025

Cryogenic Circuit Performance Prediction Using Design-Oriented Model (SEKV) On 22nm FDSOI

Christian Enz, Edoardo Charbon, Hung-Chi Han

IEEE2025

Massively multiplexed wide-field photon correlation sensing

Claudio Bruschini, Edoardo Charbon, Michael Alan Wayne

Temporal photon correlations have been a crucial resource for quantum and quantum-enabled optical science for over half a century. However, attaining non-classical information through these correlations has typically been limited to a single point (or, at ...

2025

Optimizing RF readout for silicon spin qubits in an access array

Edoardo Charbon, Andrea Ruffino

Efficient and scalable qubit readout is a critical requirement for realizing quantum computing. Radio-frequency (RF) readout emerges as a promising candidate due to its high speed and multiplexing capabilities. In this study, we employ a two-dimensional ac ...

2025

Time-resolved detectors for quantum ghost imaging

Claudio Bruschini, Edoardo Charbon, Paul Mos, Yang Lin

Quantum ghost imaging is a method that utilizes thecorrelated detection of two photons to generate an image. One photonis detected by an imaging sensor and the other by a single-elementbucket detector. The selection of the imaging sensor and itscapabilitie ...

2025

Scaled-Footprint Ultra-Low Power Cryogenic InGaAs/InP HEMTs with Record-High Combination of Low-Noise and High-Frequency Performance

Kirsten Emilie Moselund, Edoardo Charbon, Hung-Chi Han

In this work we demonstrate cryogenic InxGa1-xAs/InP HEMTs with highly scaled gate footprints, down to 380 × 40 nm2 for a single gate finger, and investigate the impact of footprint scaling on device performance. The 80% In channel devices show fT=622 GHz ...

Institute of Electrical and Electronics Engineers Inc.2025