Publications de Samuel Burri | EPFL Graph Search

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

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

Towards video-rate compressive spontaneous Raman imaging using single-photon avalanche diode arrays

Claudio Bruschini, Edoardo Charbon, Samuel Burri

Compressive Raman imaging has emerged as a promising technique to speed up chemical imaging by compressing the data during acquisition. Yet, current scanning imaging speed is fundamentally limited by the sensors pixel dwell times of at best 1µs. Here, we i ...

SPIE2024

Light- field tomographic fluorescence lifetime imaging microscopy

Claudio Bruschini, Edoardo Charbon, Samuel Burri

Fluorescence lifetime imaging microscopy (FLIM) is a powerful imaging technique that enables the visualization of biological samples at the molecular level by measuring the fluorescence decay rate of fluorescent probes. This provides critical information a ...

National Academy of Sciences2024

GPU-based data processing for speeding-up correlation plenoptic imaging

Claudio Bruschini, Edoardo Charbon, Samuel Burri, Arin Can Ülkü, Paul Mos, Michael Alan Wayne

Correlation plenoptic imaging (CPI) is a novel technological imaging modality enabling to overcome drawbacks of standard plenoptic devices, while preserving their advantages. However, a major challenge in view of real-time application of CPI is related to ...

2024

Toward video-rate compressive spontaneous Raman imaging via single-photon avalanche diode arrays

Claudio Bruschini, Edoardo Charbon, Samuel Burri

Spontaneous Raman microscopy is well-known for its remarkable chemical contrast yet suffers from slow acquisition speeds. Recently, the compressive Raman microspectroscopy framework has shown that a significant speed advantage is brought by leveraging shot ...

Optica Publishing Group2024

Towards quantum telescopes (Abstract: Y07.00001 )

Claudio Bruschini, Edoardo Charbon, Samuel Burri

The idea of exploiting quantum features of light to perform more precise astrophysical measurements is a long-desired goal of both the optics and astrophysics communities, but only recently have theoretical proposals started to be experimentally implemente ...

2024

Heralded Spectroscopy: a new single-particle probe for nanocrystal photophysics

Claudio Bruschini, Edoardo Charbon, Samuel Burri, Ivan Michel Antolovic, Arin Can Ülkü

Semiconductor nanocrystals feature multiply-excited states that display intriguing physics and significantly impact nanocrystal-based technologies. Fluorescence supplies a natural probe to investigate these states. Still, direct observation of multiexciton ...

SPIE2023

Parallelized compressive spontaneous Raman imaging via SPAD arrays (Conference Presentation)

Claudio Bruschini, Edoardo Charbon, Samuel Burri

Compressive Raman imaging has emerged as a promising technique to speed up chemical imaging by compressing the data during acquisition. Yet, current scanning imaging speed is fundamentally limited by the sensors pixel dwell times of at best 1 µs. Here, we ...

SPIE2023

LinoSPAD2: a 512x1 linear SPAD camera with system-level 135-ps SPTR and a reconfigurable computational engine for time-resolved single-photon imaging

Claudio Bruschini, Edoardo Charbon, Samuel Burri, Arin Can Ülkü, Tommaso Milanese

The LinoSPAD2 camera combines a 512×1 linear single-photon avalanche diode (SPAD) array with an FPGA-based photon-counting and time-stamping platform, to create a reconfigurable sensing system capable of detecting single photons. The read-out is fully para ...

SPIE2023

Fast Two-Photon Interferometer Capable of Spectral Binning for Quantum Telescopy

Claudio Bruschini, Edoardo Charbon, Samuel Burri

We describe a novel type of two-photon interferometer, capable of spectral binning, for quantum-assisted astrometry. We also demonstrated a single-photon spectrometer with spectral and timing resolutions of 0.1 nm and 50 ps, which can be used for this purp ...

Optical Society of America2023

LinoSPAD2: an FPGA-based , hardware-reconfigurable 512x1 single-photon camera system

Claudio Bruschini, Edoardo Charbon, Samuel Burri, Tommaso Milanese

We report on LinoSPAD2, a single-photon camera system, comprising a 512x1 single-photon avalanche diode (SPAD) front -end and one or two FPGA-based back-ends. Digital signals generated by the SPADs are processed by the FPGA in real time, whereas the FPGA o ...

Optica Publishing Group2023

Using Heralded Spectrometry to Measure the Biexciton Binding Energy of an Individual Quantum Dot

Claudio Bruschini, Edoardo Charbon, Samuel Burri, Ivan Michel Antolovic, Arin Can Ülkü

Spectrometry of a quantum state of light is a fundamental challenge with practical implications. Here, we demonstrate how such a technique can super-resolve the exciton and biexciton energies in a single quantum dot at room temperature. ...

Optica2022

Towards quantum 3D imaging devices

Claudio Bruschini, Edoardo Charbon, Samuel Burri, Arin Can Ülkü, Paul Mos, Michael Alan Wayne

We introduce a new generation of 3D imaging devices based on quantum plenoptic imaging. Position-momentum entanglement and photon number correlations are exploited to provide a scan-free 3D image after post-processing of the collected light intensity signa ...

2021

Certification of the efficient random number generation technique based on single-photon detector arrays and time-to-digital converters

Edoardo Charbon, Samuel Burri

True random number generators (TRNGs) allow the generation of true random bit sequences, guaranteeing the unpredictability and perfect balancing of the generated values. TRNGs can be realised from the sampling of quantum phenomena, for instance, the detect ...

Wiley2021

Resolving the Controversy in Biexciton Binding Energy of Cesium Lead Halide Perovskite Nanocrystals through Heralded Single-Particle Spectroscopy

Claudio Bruschini, Edoardo Charbon, Samuel Burri, Ivan Michel Antolovic, Arin Can Ülkü

Understanding exciton-exciton interaction in multiply excited nanocrystals is crucial to their utilization as functional materials. Yet, for lead halide perovskite nanocryst-als, which are promising candidates for nanocrystal-based technologies, numerous c ...

AMER CHEMICAL SOC2021

Heralded Spectroscopy Reveals Exciton-Exciton Correlations in Single Colloidal Quantum Dots

Claudio Bruschini, Edoardo Charbon, Samuel Burri, Ivan Michel Antolovic, Arin Can Ülkü

Multiply excited states in semiconductor quantum dots feature intriguing physics and play a crucial role in nanocrystal-based technologies. While photoluminescence provides a natural probe to investigate these states, room-temperature single-particle spect ...

AMER CHEMICAL SOC2021

Towards Quantum 3D Imaging Devices

Claudio Bruschini, Edoardo Charbon, Samuel Burri, Arin Can Ülkü, Paul Mos, Michael Alan Wayne

We review the advancement of the research toward the design and implementation of quantum plenoptic cameras, radically novel 3D imaging devices that exploit both momentum–position entanglement and photon–number correlations to provide the typical refocusin ...

2021

Efficient random number generation techniques for CMOS single-photon avalanche diode array exploiting fast time tagging units

Edoardo Charbon, Samuel Burri

This work presents a technique to produce random bits by exploiting single-photon time of arrival. Two quantum random number generator (QRNG) devices based on the field programmable gate array (FPGA) technology are presented: Randy, which uses one discrete ...

AMER PHYSICAL SOC2020

Single-photon avalanche diode imagers in biophotonics: review and outlook

Claudio Bruschini, Edoardo Charbon, Samuel Burri, Ivan Michel Antolovic, Harald Arjan Robert Homulle

Single-photon avalanche diode (SPAD) arrays are solid-state detectors that offer imaging capabilities at the level of individual photons, with unparalleled photon counting and time-resolved performance. This fascinating technology has progressed at a very ...

2019