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View article: Spatiotemporal Exciton Tracking with a SPAD Camera
Spatiotemporal Exciton Tracking with a SPAD Camera Open
Spatiotemporal microscopy plays an important role in the quest for highly efficient light harvesting materials as it allows direct tracking of the nanoscale transport of excitons, the carriers of the photon energy. Unfortunately, achieving…
View article: Experimental Test of Nonlocality Limits from Relativistic Independence
Experimental Test of Nonlocality Limits from Relativistic Independence Open
Quantum correlations, like entanglement, represent the characteristic trait of quantum mechanics and pose essential issues and challenges to the interpretation of this pillar of modern physics. Although quantum correlations are largely ack…
View article: Entanglement-preserving measurement of the Bell parameter on a single entangled pair
Entanglement-preserving measurement of the Bell parameter on a single entangled pair Open
Bell inequalities represent one of the cornerstones of quantum foundations, and a fundamental tool for quantum technologies. Although a lot of effort was put in exploring and generalizing them, because of the wave function collapse it was …
View article: Multipass wide-field phase imager
Multipass wide-field phase imager Open
Advances in optical imaging always look for an increase in sensitivity and resolution among other practicability aspects. Within the same scope, in this work we report a versatile interference contrast imaging technique, with high phase se…
View article: Multipass wide-field phase imager
Multipass wide-field phase imager Open
Advances in optical imaging always look for an increase in sensitivity and resolution among other practicability aspects. Within the same scope, in this work we report a versatile interference contrast imaging technique, capable of sub-nm …
View article: Multi-wavelength SPAD photoplethysmography for cardio-respiratory monitoring
Multi-wavelength SPAD photoplethysmography for cardio-respiratory monitoring Open
There is a growing interest in photoplethysmography (PPG) for the continuous monitoring of cardio-respiratory signals by portable instrumentation aimed at the early diagnosis of cardiovascular diseases. In this context, it is conceivable t…
View article: Non-line-of-sight snapshots and background mapping with an active corner camera
Non-line-of-sight snapshots and background mapping with an active corner camera Open
The ability to form reconstructions beyond line-of-sight view could be transformative in a variety of fields, including search and rescue, autonomous vehicle navigation, and reconnaissance. Most existing active non-line-of-sight (NLOS) ima…
View article: Single-pair measurement of the Bell parameter
Single-pair measurement of the Bell parameter Open
Bell inequalities are one of the cornerstones of quantum foundations, and fundamental tools for quantum technologies. Recently, the scientific community worldwide has put a lot of effort towards them, which culminated with loophole-free ex…
View article: Spatially Resolved Event-Driven 24 × 24 Pixels SPAD Imager With 100% Duty Cycle for Low Optical Power Quantum Entanglement Detection
Spatially Resolved Event-Driven 24 × 24 Pixels SPAD Imager With 100% Duty Cycle for Low Optical Power Quantum Entanglement Detection Open
Quantum microscopy requires efficient detectors able to identify temporal correlations among photons. Photon coincidences are usually detected by postprocessing their timestamps measured by means of time-To-digital converters (TDCs), throu…
View article: Non-Line-of-Sight Tracking and Mapping with an Active Corner Camera
Non-Line-of-Sight Tracking and Mapping with an Active Corner Camera Open
The ability to form non-line-of-sight (NLOS) images of changing scenes could be transformative in a variety of fields, including search and rescue, autonomous vehicle navigation, and reconnaissance. Most existing active NLOS methods illumi…
View article: Historical Perspectives, State of Art and Research Trends of SPAD Arrays and Their Applications (Part II: SPAD Arrays)
Historical Perspectives, State of Art and Research Trends of SPAD Arrays and Their Applications (Part II: SPAD Arrays) Open
The ability to detect single photons is becoming an enabling key capability in an increasing number of fields. Indeed, its scope is not limited to applications that specifically rely on single photons, such as quantum imaging, but extends …
View article: Historical Perspectives, State of art and Research Trends of Single Photon Avalanche Diodes and Their Applications (Part 1: Single Pixels)
Historical Perspectives, State of art and Research Trends of Single Photon Avalanche Diodes and Their Applications (Part 1: Single Pixels) Open
The ability to detect single photons is becoming an enabling key capability in an increasing number of fields. Indeed, its scope is not limited to applications that specifically rely on single photons, such as quantum imaging, but extends …
View article: Single-Shot Pulsed-LiDAR SPAD Sensor with on-chip Peak Detection for Background Rejection
Single-Shot Pulsed-LiDAR SPAD Sensor with on-chip Peak Detection for Background Rejection Open
In recent years, direct Time-of-Flight techniques have been exploited with single-photon detectors to provide long distance ranges and high-frame rates measurements. Detectors based on Silicon Photon Multipliers commonly collect repetitive…
View article: Multi-Channel FPGA Time-to-Digital Converter With 10 ps Bin and 40 ps FWHM
Multi-Channel FPGA Time-to-Digital Converter With 10 ps Bin and 40 ps FWHM Open
We present a novel architecture for multi-channel time-to-digital converters (TDCs) to be implemented into low-cost field-programmable gate arrays (FPGAs), achieving 10-ps least significant bit (LSB), 164- $mu \text{s}$ full-scale range, a…
View article: A quantum-enhanced wide-field phase imager
A quantum-enhanced wide-field phase imager Open
Hyperentanglement and SPAD array camera enable wide-field supersensitive quantum imaging.
View article: SPAD Pixel With Sub-NS Dead-Time for High-Count Rate Applications
SPAD Pixel With Sub-NS Dead-Time for High-Count Rate Applications Open
Single-photon avalanche diode (SPAD) exploitation in high-flux applications is often hindered by the trade-off between the SPAD dead-time and afterpulsing probability. In this paper, we present the architecture and the experimental charact…
View article: A quantum-enhanced wide-field phase imager
A quantum-enhanced wide-field phase imager Open
Quantum techniques can be used to enhance the signal-to-noise ratio in optical imaging. Leveraging the latest advances in single-photon avalanche diode array cameras and multiphoton detection techniques, here, we introduce a supersensitive…
View article: Gated SPAD Arrays for Single-Photon Time-Resolved Imaging and Spectroscopy
Gated SPAD Arrays for Single-Photon Time-Resolved Imaging and Spectroscopy Open
Create Roxygen skeletons for all of your functions before compiling it into an R package. Roxygen2 is an awesome tool to easily create a package from your function library. RoxygenReady helps in creating the function annotations needed to …