Results 21 to 30 of about 1,279 (175)

Quenching Circuit and SPAD Integrated in CMOS 65 nm with 7.8 ps FWHM Single Photon Timing Resolution

Instruments, 2018
This paper presents a new quenching circuit (QC) and single photon avalanche diode (SPAD) implemented in TSMC CMOS 65 nm technology. The QC was optimized for single photon timing resolution (SPTR) with a view to an implementation in a 3D digital SiPM ...
Frédéric Nolet, Samuel Parent, Nicolas Roy, Marc-Olivier Mercier, Serge A. Charlebois, Réjean Fontaine, Jean-Francois Pratte   +6 more
doaj   +1 more source

A 72 × 60 Angle-Sensitive SPAD Imaging Array for Lens-less FLIM

Sensors, 2016
We present a 72 × 60, angle-sensitive single photon avalanche diode (A-SPAD) array for lens-less 3D fluorescence lifetime imaging. An A-SPAD pixel consists of (1) a SPAD to provide precise photon arrival time where a time-resolved operation is utilized ...
Changhyuk Lee, Ben Johnson, TaeSung Jung, Alyosha Molnar   +3 more
doaj   +1 more source

Photon-Counting Underwater Wireless Optical Communication by Recovering Clock and Data From Discrete Single Photon Pulses

IEEE Photonics Journal, 2019
To realize a long-distance underwater communication by using low-cost light emitting diode (LED) and single photon avalanche diode (SPAD), we proposed a method for recovering clock and data directly from discrete random pulse sequences output by SPAD. On
Qiurong Yan, Zihang Li, Zhu Hong, Ting Zhan, Yuhao Wang   +4 more
doaj   +1 more source

Design Criteria for InGaAs/InP Single-Photon Avalanche Diode

IEEE Photonics Journal, 2013
We provide a detailed insight on the design of InGaAs/InP single-photon avalanche diode (SPAD) for 1.55- μm photon detection. In order to lower SPAD noise [the dark count rate (DCR)] without lowering photon detection efficiency (PDE) or increasing
Fabio Acerbi, Michele Anti, Alberto Tosi, Franco Zappa   +3 more
doaj   +1 more source

Fast-Gated 16 × 1 SPAD Array for Non-Line-of-Sight Imaging Applications

Instruments, 2020
In this paper we present a novel single-photon detector specifically designed for Non-Line-Of-Sight (NLOS) imaging applications within the framework of the DARPA REVEAL program.
Marco Renna, Ji Hyun Nam, Mauro Buttafava, Federica Villa, Andreas Velten, Alberto Tosi   +5 more
doaj   +1 more source

Indirect Time-of-Flight with GHz Correlation Frequency and Integrated SPAD Reaching Sub-100 µm Precision in 0.35 µm CMOS

Sensors, 2023
The purpose of this work is to prove the suitability of integrated single-photon avalanche diode (SPAD)-based indirect time-of-flight (iTOF) for sub-100 µm precision depth sensing using a correlation approach with GHz modulation frequencies.
Michael Hauser, Horst Zimmermann, Michael Hofbauer   +2 more
doaj   +1 more source

Optimization of Single Photon Avalanche Diode Design Using Surrogate-Reinforcement Learning

IEEE Photonics Journal
This paper presents the optimization of Single-Photon Avalanche Diode (SPAD) device design parameters using surrogate-assisted reinforcement learning (RL) framework.
Kazi Mohammad Mamun, Nezih Pala, Mst Shamim Ara Shawkat   +2 more
doaj   +1 more source

Compact SPAD-Based Pixel Architectures for Time-Resolved Image Sensors

Sensors, 2016
This paper reviews the state of the art of single-photon avalanche diode (SPAD) image sensors for time-resolved imaging. The focus of the paper is on pixel architectures featuring small pixel size (<25 μm) and high fill factor (>20%) as a key ...
Matteo Perenzoni, Lucio Pancheri, David Stoppa   +2 more
doaj   +1 more source

Switchable Dual Emission of Luminescent Metal–Organic Framework@Nanoparticle Composites of EuBDC and ZrO‐Containing Hybrid Materials

European Journal of Inorganic Chemistry, EarlyView.
Luminescent metal–organic framework@nanoparticle composites show dual emission of both components EuBDC and zirconyl‐containing nanoparticles, being reversible, excitation energy‐dependent and solvatochromic switches. The chromaticity changes are fast, as no chemical transformation is involved and required as source of the dual emission.
Tobias Wehner, Joachim G. Heck, Claus Feldmann, Klaus Müller‐Buschbaum   +3 more
wiley   +1 more source

A Long Distance Underwater Visible Light Communication System With Single Photon Avalanche Diode

IEEE Photonics Journal, 2016
Underwater visible light communication (UVLC) is of great interest to the military, industry, and the scientific community. In this paper, a long-distance UVLC system is designed, where the half power angle of light-emitting diode (LED) is narrowed to ...
Chao Wang, Hong-Yi Yu, Yi-Jun Zhu
doaj   +1 more source