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Single Photon Avalanche Diode Arrays for Time-Resolved Raman Spectroscopy [PDF]

open access: yesSensors, 2021
The detection of peaks shifts in Raman spectroscopy enables a fingerprint reconstruction to discriminate among molecules with neither labelling nor sample preparation.
Francesca Madonini, Federica Villa
doaj   +2 more sources

Custom-Technology Single-Photon Avalanche Diode Linear Detector Array for Underwater Depth Imaging [PDF]

open access: yesSensors, 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   +2 more sources

On-Chip Compressive Sensing with a Single-Photon Avalanche Diode Array [PDF]

open access: yesSensors, 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   +2 more sources

High crosstalk suppression in InGaAs/InP single-photon avalanche diode arrays by carrier extraction structure [PDF]

open access: yesNature Communications
Crosstalk has become an urgent issue for single-photon avalanche diode arrays. In previous work, trenches were introduced between pixels to block the crosstalk optical path in planar InGaAs/InP single-photon avalanche diode arrays, since the optical ...
Yongsheng Tang   +5 more
doaj   +2 more sources

CMOS Single-Photon Avalanche Diode Circuits for Probabilistic Computing [PDF]

open access: yesIEEE Journal on Exploratory Solid-State Computational Devices and Circuits
Intrinsically random hardware devices are increasingly attracting attention for their potential use in probabilistic computing architectures. One such device is the single-photon avalanche diode (SPAD) and an associated functional unit, the variable-rate
William Whitehead   +2 more
doaj   +2 more sources

High performance planar germanium-on-silicon single-photon avalanche diode detectors [PDF]

open access: yesNature Communications, 2019
By incorporating germanium, single-photon avalanche diode detectors using silicon-based platforms are applied to infrared light detection. Here, a cost-effective planar detector geometry is presented yielding high detection efficiency suitable for ...
Peter Vines   +7 more
doaj   +2 more sources

Scintillation event imaging with a single photon avalanche diode camera [PDF]

open access: yesCommunications Engineering
Position and time measurements of scintillation events encode information about the radiation source. Single photon avalanche diode (SPAD) arrays offer multiple-megapixel spatial resolution and tens of picoseconds temporal resolution for detecting single
Alex Bocchieri   +2 more
doaj   +2 more sources

InGaAs/InAlAs single photon avalanche diode for 1550 nm photons [PDF]

open access: yesRoyal 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   +2 more sources

Pion Detection Using Single Photon Avalanche Diodes

open access: yesSensors, 2023
We present the first reported use of a CMOS-compatible single photon avalanche diode (SPAD) array for the detection of high-energy charged particles, specifically pions, using the Super Proton Synchrotron at CERN, the European Organization for Nuclear ...
Anthony Frederick Bulling, Ian Underwood
doaj   +3 more sources

Design of an Electronic Interface for Single-Photon Avalanche Diodes

open access: yesSensors
Single-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   +3 more sources

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