Results 31 to 40 of about 5,264,207 (202)

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

Analysis of detector performance in a gigahertz clock rate quantum key distribution system [PDF]

, 2011
We present a detailed analysis of a gigahertz clock rate environmentally robust phase-encoded quantum key distribution (QKD) system utilizing several different single-photon detectors, including the first implementation of an experimental resonant cavity
Mikio Fujiwara, R. H. Hadfield, Townsend, Paul D., Shigehito Miki, Wang, Zhen, C. M. Natarajan, GHIONI, MASSIMO ANTONIO, Collins, R.J., Garcia-Martinez, Maria-Jose, M. Fujiwara, Robert J Collins, M. Sasaki, Tanner, Michael G.; id_orcid, Patrick J Clarke, Sasaki, M., Wang, Z., R. J. Collins, Chandra M Natarajan, Buller, Gerald S., N. J. Krichel, O'Connor, John A., Gerald S Buller, María-José García-Martínez, García-Martínez, M.-J., Masahide Sasaki, Fujiwara, M., Krichel, N.J., Tanner, M.G., G. S. Buller, Nils J Krichel, Ivan Rech, Hadfield, Robert H., Rech, Ivan, Ghioni, M., Aongus McCarthy, Natarajan, C.M., Rech, I., P. A. Hiskett, Gulinatti, Angelo, Collins, Robert J., Townsend, P., Robert H Hadfield, M. García Martínez, A. McCarthy, P. J. Clarke, Miki, Shigehito, Massimo Ghioni, Angelo Gulinatti, Gulinatti, A., Paul D Townsend, Miki, S., Zhen Wang, S. Miki, Buller, G.S., Hiskett, P.A., Hiskett, Philip A., Fujiwara, Mikio, M. G. Tanner, Hadfield, R., McCarthy, A., John A O'Connor, Natarajan, Chandra M., Michael G Tanner, O'Connor, J.A., Philip A Hiskett, McCarthy, Aongus, Ghioni, Massimo, Z. Wang, P. D. Townsend, Krichel, Nils J., J. A. O'Connor, Clarke, P.J., Clarke, Patrick J., Sasaki, Masahide   +73 more
core   +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

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

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

A Scalable Platform for Massively Parallel Superconducting Single‐Photon Detection

Laser &Photonics Reviews, EarlyView.
One hundred independent superconducting nanowire detectors, each with efficiency up to 80.1–98.3%, are integrated into a single compact system operating below 2.1 K. This parallel architecture supports fully connected multi‐user quantum entanglement distribution, while its scalability opens new avenues in optical quantum computing, QKD networks ...
You Xiao, Zhen Wan, Dianpeng Wang, Jianjian Zhu, Huiqin Yu, Shuna Wang, Zhiyun Shu, Chaomeng Ding, Hongxin Xu, Jia Huang, Jiamin Xiong, Xiaoyu Liu, Lingyun Li, Lixing You, Hao Li   +14 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

Quantitative Imaging of Human Hemoglobin Binding to Staphylococcus aureus With Single‐Molecule Resolution

Small, EarlyView.
Single‐molecule localization microscopy is exploited to quantify the number of hemoglobin copies bound to specific receptors on S. aureus wall. This quantification supports the design of a photoactive derivative of hemoglobin able to photo‐inactivate S.
Pietro Delcanale, Andrea Mussini, Òscar Gulías, Montserrat Agut, Melissa Berni, Stefano Pongolini, Stefano Bruno, Alessandro Casnati, Santi Nonell, Cristiano Viappiani, Stefania Abbruzzetti   +10 more
wiley   +1 more source

Geiger Mode Ge-on-Si Single-Photon Avalanche Diode Detectors [PDF]

, 2019
Ge-on-Si single-photon avalanche diode (SPAD) detectors have demonstrated a high single-photon detection efficiency of 38% at a wavelength of 1310 nm when operated at a temperature of 125 K.
Kuzmenko, Kateryna, Greener, Zoe M., Ross W. Millar, Dumas, Derek C. S., Zoe Greener, Peter Vines, Derek C. S. Dumas, Douglas J. Paul, Kirdoda, Jaroslaw, Paul, Douglas J., Kateryna Kuzmenko, Mirza, Muhammad M., Jaroslaw Kirdoda, Vines, Peter, Greener, Zoe, Buller, Gerald S., Dumas, Derek C.S., Zoe M. Greener, Muhammad M. Mirza, Millar, Ross W., Gerald S. Buller   +20 more
core   +1 more source