Results 31 to 40 of about 1,282 (172)

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

Single-photon avalanche diode (SPAD) array detector for high-throughput fluorescence lifetime flow cytometry

Current Directions in Biomedical Engineering, 2023
Abstract Time-domain measurement of the fluorescence lifetime in flow cytometry offers a complementary method to traditional flow cytometry, especially for the analysis of cells and biomolecules. Short measurement times due to high throughputs (cells/s) make a suited detector mandatory for a sufficient detection of the fluorescence ...
Rottmann, Jonas David, Schierbaum, Nicolas Peter, Netaev, Alexander, Ligges, Manuel, Seidl, Karsten   +4 more
openaire   +3 more sources

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

Crosstalk Characterization of Single-photon Avalanche Diode (SPAD) Arrays in CMOS 150nm Technology

Procedia Engineering, 2014
AbstractIn this paper, crosstalk characterization results of single-photon avalanche diode (SPAD) arrays in CMOS 150nm technology are reported and discussed. SPADs are implemented in two different sizes (15.6 and 25.6μm pitch) and three guard ring widths (0.6, 1.1 and1.6μm).
Xu, Hesong, Pancheri, Lucio, Braga, Leo H. C., Dalla Betta, Gian Franco, Stoppa, David, Huf Campos Braga, Leo   +5 more
openaire   +2 more sources

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

A Simple Analytic Modeling Method for SPAD Timing Jitter Prediction

IEEE Journal of the Electron Devices Society, 2019
Timing jitter as a key performance of single-photon avalanche diode (SPAD) detectors plays a significant role in determining the fast temporal response behavior of the SPAD device. Nevertheless, few analytic models are developed to directly calculate the
Feiyang Sun, Yue Xu, Zhong Wu, Jun Zhang
doaj   +1 more source

A High-Throughput Photon Processing Technique for Range Extension of SPAD-Based LiDAR Receivers

IEEE Open Journal of the Solid-State Circuits Society, 2022
There has recently been a keen interest in developing Light Detection and Ranging (LiDAR) systems using Single Photon Avalanche Diode (SPAD) sensors. This has led to a variety of implementations in pixel combining techniques and Time to Digital Converter
Sarrah M. Patanwala, Istvan Gyongy, Hanning Mai, Andreas Abmann, Neale A. W. Dutton, Bruce R. Rae, Robert K. Henderson   +6 more
doaj   +1 more source

Integration of Refractive Microlenses on BP/MoS2 Photodiodes for Enhanced Infrared Photodetection

Small, EarlyView.
This study demonstrates the successful integration of black phosphorus/molybdenum disulfide infrared photodetectors with refractive microlenses to significantly enhance detection. The design achieves a 20‐fold photocurrent enhancement, enabling a room‐temperature detectivity of 1.83 × 109 cmHz1/2W−1, and demonstrates high‐resolution (1023 × 768) single‐
Varsha Ashwin Vedaraj, Daniel Fan, Jinyuan Chen, Seyed Saleh Mousavi Khaleghi, Luke Philpott, Yuchen Sun, Shifan Wang, Shi Tang, Robert Delaney, Alexander Corletto, Kenneth B. Crozier, James Bullock   +11 more
wiley   +1 more source

Metrology for Quantum Hardware Standardization—Charting a Pathway: A Strategic Review

IEEJ Transactions on Electrical and Electronic Engineering, Volume 21, Issue 9, Page 1282-1296, September 2026.
Advances in quantum mechanics have long underpinned metrology by enabling practical realizations of units through quantum effects. With the 2019 SI revision, traceability is anchored in defined fundamental constants, reinforcing the quantum‐mechanical basis of modern standards. In parallel, quantum technologies are transitioning from laboratory science
Nobu‐Hisa Kaneko
wiley   +1 more source

Rotating Fluorescent Nanodiamond Assemblies With Focused Laguerre–Gaussian Beams

Advanced Optical Materials, Volume 14, Issue 31, August 21, 2026.
Self‐assembled fluorescent nanodiamond clusters are optically trapped and driven into controlled two‐dimensional rotation with Laguerre–Gaussian beams. With localized optical excitation, optically detected magnetic resonance spectra are collected at defined points along the orbit in a uniform external magnetic field.
Adam Stewart, Anthony J. El‐Helou, Ying Zhu, David McGloin, David A. Simpson, Peter J. Reece   +5 more
wiley   +1 more source