Results 11 to 20 of about 1,282 (172)
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
3D Simple Monte Carlo Statistical Model for GaAs Nanowire Single Photon Avalanche Diode
IEEE Photonics Journal, 2020 GaAs based nanowire single photon avalanche diode (SPAD) has been demonstrated with extremely small afterpulsing probability and low dark count rate, and hence it has attracted wide attention for the near infrared applications.
Shiyu Xie +3 more
doaj +1 more source
A Compact High-Speed Active Quenching and Recharging Circuit for SPAD Detectors
IEEE Photonics Journal, 2020 A compact high-speed active quenching and recharging circuit (AQRC) is proposed for single-photon avalanche diode (SPAD) detectors fabricated in standard 0.18 μm CMOS technology.
Yue Xu, Jiyuan Lu, Zhong Wu
doaj +1 more source
Instruments, 2019 We present a single-photon sensor based on the single-photon avalanche diode (SPAD) that is suitable for low-cost and low-voltage light detection and ranging (LiDAR) applications.
Jinsoo Rhim +6 more
doaj +1 more source
Sensors, 2021 An ultrafast Active Quenching—Active Reset (AQAR) circuit is presented for the afterpulsing reduction in a Single Photon Avalanche Diode (SPAD). The proposed circuit is designed in a 28 nm Fully Depleted Silicon On Insulator (FD-SOI) CMOS technology.
Mohammadreza Dolatpoor Lakeh +8 more
doaj +1 more source
Sub-Pixel Scanning High-Resolution Panoramic 3D Imaging Based on a SPAD Array
IEEE Photonics Journal, 2021 3D imaging based on single-photon avalanche diode (SPAD) arrays is of interest in many applications. Limited by the small array size and low fill-factor of the available SPAD array, it is difficult for SPAD array-based lidars to achieve high-resolution ...
Ruikai Xue +4 more
doaj +1 more source
Physical Review Research, 2020 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 ...
Andrea Stanco +5 more
doaj +1 more source
Single-Photon Avalanche Diodes (SPAD) in CMOS 0.35 µm technology [PDF]
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2015 Some decades ago single photon detection used to be the terrain of photomultiplier tube (PMT), thanks to its characteristics of sensitivity and speed. However, PMT has several disadvantages such as low quantum efficiency, overall dimensions, and cost, making them unsuitable for compact design of integrated systems.
Pellion, D +4 more
openaire +3 more sources
Pion Detection Using Single Photon Avalanche Diodes
Sensors, 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 +1 more source
Angewandte Chemie, EarlyView.Shewanella oneidensis and Bacillus subtilis, both harboring prophages, reveal a novel biosynthetic route to scalable and programmable DNA superstructures in flower‐ and wire‐like shapes, respectively. Activation of prophages is achieved via 3‐hour starvation and monitored using reporter strains.
Gabriel Antonio S. Minero +7 more
wiley +2 more sources