Results 121 to 130 of about 568,064 (303)

Research on Performance of Chaotic Pulse Position Modulation Photon Counting LiDAR System

Guangtongxin yanjiu
【Objective】Photon counting LiDAR offers significant advantages in detecting long-range and weak targets due to its exceptionally high detection sensitivity.
JIA Yihan, ZHANG Xuanwei, WANG Bingjie, XU Hang, LIU Li, LI Jingxia   +5 more
doaj  

Perovskite defect passivation for efficient photon-counting detector

Nano Research
Although metal halide perovskites have advanced rapidly in photoelectrical detection, studies on perovskite-based photon-counting detector remain scarce.
Wenjie Luo, Pengshuo Gan, Binyun Han, Kaixin Huang, Xingzhou Su, Wenxuan Yang, Qing Zhong, Hao Huang, Yang Zhang, Xue-Feng Yu, Yongfeng Yang, Chang Liu, Zheng Liu, Wenhua Zhou, Yanliang Liu   +14 more
doaj   +1 more source

Interface‐Mediated Catalysis for Improved Hydrogen Storage in Reactive Hydride Composites

Advanced Materials, EarlyView.
Catalyst–hydride interfaces are engineered in Co@C‐ and Ni@C‐modified 2LiH + MgB2 reactive hydride composites to accelerate hydrogen uptake and release. Multiscale scattering, in‐situ synchrotron radiation powder x‐ray diffraction and density functional theory calculations reveal the structural and electronic origin of the catalytic enhancement ...
Yuanyuan Shang, Pawan Kumar Soni, Han Ge, Weijie Yang, Fahim Karimi, Thi Thu Le, Tamás Simon, Michael Fröba, Jitendra Mata, Joshua King, Hai‐Wen Li, Thomas Klassen, Claudio Pistidda   +12 more
wiley   +1 more source

An Underwater Multi-User Communication System Using Photomultiplier-Tube-Based Photon Detector With Dead-Time Effect and Shot Noise

IEEE Photonics Journal
We investigate detection for practical photon-counting receivers in underwater optical wireless communication (UOWC) systems, where dead-time effects and multi-user interference (MUI) pose significant challenges.
Fanghua Li, Xiaolin Zhou, Yongkang Chen
doaj   +1 more source

Accelerated Materials Discovery Through In Situ X‐ray Diffraction: Solvothermal Formation of PdxMy (M═Si, Ge, Sn, Pb) Intermetallic Nanoparticles

Advanced Materials, EarlyView.
In situ PXRD data on solvothermal reactions accelerate materials discovery while simultaneously providing fundamental insights into complex crystal formation processes. Using PdxMy (M = Si, Ge, Sn, Pb) as an example, a general formation mechanism is identified, and specific synthesis strategies for ex situ preparation of SnPd2, Sn13Pd20, and SnPd ...
Anders Bæk Borup, Bo Brummerstedt Iversen   +1 more
wiley   +1 more source

Time Correlated Single Photon Counting System for Optical Measurements

, 2010
Time Correlated Single Photon Counting System for Optical MeasurementsThe high sensitivity time correlated single photon counting system (with photomultiplier tube) for biomedical measurements was designed and tested.
Grzegorz Domański, Artur Trybuła, Krzysztof Zaremba, Marcin Ziembicki, Robert Kurjata, Michał Dziewiecki, Bogumił Konarzewski, Janusz Marzec, Andrzej Smolnik   +8 more
core   +1 more source

Plasmon‐Enhanced Second‐Harmonic Generation in Atomically Thin Crystalline Silver Nanostructures

Advanced Materials, EarlyView.
Atomically thin crystalline silver films combine vertical quantum confinement with lateral plasmonic field enhancement to boost second‐harmonic generation. Nanoribbon and nanotriangle arrays enable geometry‐tunable infrared plasmon resonances, producing strong SHG from deeply subwavelength metallic volumes compatible with silicon‐based nanophotonics ...
Saad Abdullah, Philipp K. Jenke, Andrew P. Weber, Álvaro Rodríguez Echarri, Vahagn Mkhitaryan, Fadil Iyikanat, Frederik Schiller, Philip Walther, J. Enrique Ortega, Lee A. Rozema, F. Javier García de Abajo   +10 more
wiley   +1 more source

Ionic Cocrystal Programming of Spatial Ionic Organization in Carbon Nitrides Enables Highly Efficient H2O2 Photosynthesis

Advanced Materials, EarlyView.
Ionic cocrystal‐programmed ionic organization establishes a general strategy for electrostatic programming in polymeric photocatalysts. ABSTRACT Controlling the spatial organization of ions in polymeric photocatalysts remains a fundamental challenge for optimizing charge transport and catalytic selectivity in solar‐driven hydrogen peroxide (H2O2 ...
Anna Lo Presti, Zahra Hajiahmadi, Sam A. J. Hillman, Mu Xiao, James R. Durrant, Thomas D. Kühne, Christian Mark Pelicano   +6 more
wiley   +1 more source

Single-photon counting detectors for diffraction-limited light sources

Frontiers in Physics
When first introduced, single-photon counting detectors reshaped crystallography at synchrotrons. Their fast readout speed enabled, for example, shutter-less data collection and fine slicing of the rotation angle and boosted the development of new ...
Erik Fröjdh, Anna Bergamaschi, Bernd Schmitt   +2 more
doaj   +1 more source

Helicity‐Defined Analog Conductance States in Chiral Perovskite Synapses

Advanced Materials, EarlyView.
Chiral perovskite synapses convert the handedness of circularly polarized light into persistent analog memory during electrical programming. An optimized n = 3 structure combines strong helicity selectivity with low read noise, enabling 72 distinct conductance levels.
Min Jong Lee, Hyoungwook Cho, Sang Heon Lee, Ohhyun Kwon, Minil Kang, Dong Gyu Lee, Seongwon Lee, Tae Kyung Lee, Gyeong Min Lee, Minseong Um, Sung Su Yoon, Gayoung Ham, Hyojung Cha, Hyungju Ahn, SungWoo Nam, Hyung‐Min Lee, Jae Won Shim   +16 more
wiley   +1 more source