Results 31 to 40 of about 5,255,782 (210)

A Compact High-Speed Active Quenching and Recharging Circuit for SPAD Detectors

open access: yesIEEE 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

Room Temperature InGaAs/AlGaAsSb Single Photon Avalanche Diode

open access: yesIEEE Photonics Journal
Near-infrared Single Photon Avalanche Diodes (SPADs) are the dominant, practical single photon detectors for quantum applications and low-level optical sensing.
J. Taylor-Mew   +4 more
doaj   +1 more source

Monolithically-Integrated Single-Photon Avalanche Diode in a Zero-Change Standard CMOS Process for Low-Cost and Low-Voltage LiDAR Application

open access: yesInstruments, 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

Neural Imaging Using Single-Photon Avalanche Diodes [PDF]

open access: yesBasic and Clinical Neuroscience Journal, 2017
This paper analyses the ability of single-photon avalanche diodes (SPADs) for neural imaging. The current trend in the production of SPADs moves toward the minimum dark count rate (DCR) and maximum photon detection probability (PDP). Moreover, the jitter response which is the main measurement characteristic for the timing uncertainty is progressing.The
Mohammad Azim Karami, Misagh Ansarian
openaire   +3 more sources

Towards a Multi-Pixel Photon-to-Digital Converter for Time-Bin Quantum Key Distribution

open access: yesSensors, 2023
We present an integrated single-photon detection device custom designed for quantum key distribution (QKD) with time-bin encoded single photons. We implemented and demonstrated a prototype photon-to-digital converter (PDC) that integrates an 8 × 8 single-
Simon Carrier   +11 more
doaj   +1 more source

Current-Assisted Single Photon Avalanche Diode (CASPAD) Fabricated in 350 nm Conventional CMOS

open access: yesApplied Sciences, 2020
A current-assisted single-photon avalanche diode (CASPAD) is presented with a large and deep absorption volume combined with a small p-n junction in its middle to perform avalanche trigger detection. The absorption volume has a drift field that serves as
Gobinath Jegannathan   +2 more
doaj   +1 more source

High Detection Rate Fast-Gated CMOS Single-Photon Avalanche Diode Module

open access: yesIEEE Photonics Journal, 2020
We present a novel instrument for fast-gated operation of a 50 μm CMOS SPAD (Complementary Metal-Oxide-Semiconductor Single-Photon Avalanche Diode), driven by an integrated fast-gated active quenching circuit with transition times faster than 300 ...
Marco Renna   +5 more
doaj   +1 more source

GeS as an Emerging OTS Material: Atomic Structure and Modeling of ON/OFF Switching

open access: yesAdvanced Functional Materials, EarlyView.
The structural puzzle of glassy GeS, an advanced memory‐selector material, has finally been disentangled, revealing a patchwork of mixed tetrahedral and trigonal species. Under a high electric field, over‐ and under‐coordinated Ge and S defects, together with three‐membered rings, form an interconnected network associated with localized and extended ...
Andrey Tverjanovich   +13 more
wiley   +1 more source

Multi-Channel Gating Chip in 0.18 µm High-Voltage CMOS for Quantum Applications

open access: yesSensors, 2023
A gating circuit for a photonic quantum simulator is introduced. The gating circuit uses a large excess bias voltage of up to 9.9 V and an integrated single-photon avalanche diode (SPAD).
Christoph Ribisch   +6 more
doaj   +1 more source

Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities

open access: yesAdvanced Materials, EarlyView.
This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen   +7 more
wiley   +1 more source

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