Modeling and Analysis of Capacitive Relaxation Quenching in a Single Photon Avalanche Diode (SPAD) Applied to a CMOS Image Sensor [PDF]
Sensors, 2020 We present an analysis of carrier dynamics of the single-photon detection process, i.e., from Geiger mode pulse generation to its quenching, in a single-photon avalanche diode (SPAD).
Akito Inoue +3 more
doaj +7 more sources
Magnetic Carbon Nanofiber Mats for Prospective Single Photon Avalanche Diode (SPAD) Sensing Applications [PDF]
Sensors, 2021 Electrospinning enables simple and cost-effective production of magnetic nanofibers by adding nanoparticles to a polymer solution. In order to increase the electrical conductivity of such nanofibers, the carbonization process is crucial.
Marah Trabelsi +6 more
doaj +5 more sources
Simulation-Based Design of a Silicon SPAD with Dead-Space-Aware Avalanche Region for Picosecond-Resolved Detection [PDF]
SensorsThis study presents a simulation-based design of a silicon single-photon avalanche diode (SPAD) optimized for picosecond-resolved photon detection. Utilizing COMSOL Multiphysics, we implement a dead-space-aware impact ionization model to accurately ...
Meng-Jey Youh +6 more
doaj +2 more sources
Localization of single molecules with structured illumination and structured detection [PDF]
Light: Science & ApplicationsA new high-precision single-molecule localization scheme, ISM-FLUX, is an implementation of MINFLUX using image-scanning microscopy (ISM) with a single-photon avalanche diode (SPAD) array detector.
Luciano A. Masullo
doaj +2 more sources
Design of an Electronic Interface for Single-Photon Avalanche Diodes [PDF]
SensorsSingle-photon avalanche diodes (SPADs) belong to a family of avalanche photodiodes (APDs) with single-photon detection capability that operate above the breakdown voltage (i.e., Geiger mode).
Salvatore A. Pullano +7 more
doaj +2 more sources
On-Chip Compressive Sensing with a Single-Photon Avalanche Diode Array
Sensors, 2023 Single-photon avalanche diodes (SPADs) are novel image sensors that record photons at extremely high sensitivity. To reduce both the required sensor area for readout circuits and the data throughput for SPAD array, in this paper, we propose a snapshot ...
Chenxi Qiu +6 more
doaj +1 more source
InGaAs/InAlAs single photon avalanche diode for 1550 nm photons [PDF]
Royal Society Open Science, 2016 A single photon avalanche diode (SPAD) with an InGaAs absorption region, and an InAlAs avalanche region was designed and demonstrated to detect 1550 nm wavelength photons.
Xiao Meng +7 more
doaj +1 more source
Sensors, 2023 In this study, a 3.06 μm pitch single-photon avalanche diode (SPAD) pixel with an embedded metal contact and power grid on two-step deep trench isolation in the pixel is presented.
Jun Ogi +13 more
doaj +1 more source
Custom-Technology Single-Photon Avalanche Diode Linear Detector Array for Underwater Depth Imaging
Sensors, 2021 We present an optical depth imaging system suitable for highly scattering underwater environments. The system used the time-correlated single-photon counting (TCSPC) technique and the time-of-flight approach to obtain depth profiles.
Aurora Maccarone +6 more
doaj +1 more source
Single Photon Kilohertz Frame Rate Imaging of Neural Activity
Advanced Science, 2022 Establishing the biological basis of cognition and its disorders will require high precision spatiotemporal measurements of neural activity. Recently developed genetically encoded voltage indicators (GEVIs) report both spiking and subthreshold activity ...
Tian Tian +4 more
doaj +1 more source