Results 141 to 150 of about 2,592,085 (298)

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

Evidence for Itinerant Ferromagnetic Flat Bands Producing Large Transverse Responses

Advanced Materials, EarlyView.
Itinerant ferromagnetic flat bands are demonstrated in GdCo5 with a high Curie temperature of 940K, a stacked honeycomb–kagome lattice, through angle‐resolved photoemission spectroscopy and magneto‐thermoelectric measurements. These topological flat bands generate large Berry curvaturte, producing gigantic anomalous Nernst effect with record‐high ...
Susumu Minami, Yangming Wang, Seigo Souma, Hiroto Nakamura, Akito Sakai, Takumi Osumi, Hang Su, Hikaru Watanabe, Shun'ichiro Kurosawa, Rikuto Oiwa, Daisuke Nishio‐Hamane, Kosuke Nakayama, Takuya Nomoto, Ryotaro Arita, Takafumi Sato, Satoru Nakatsuji   +15 more
wiley   +1 more source

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

Silicon Single Photon Avalanche Diodes: Situation and Prospect

, 2007
Photon counting was introduced and developed during four decades relying on Photomultiplier Tubes (PMT), but interesting alternatives are nowadays provided by solid-state single-photon microdetectors. In particular, Silicon Single-Photon Avalanche-Diodes
P. Maccagnani, GULINATTI, ANGELO, ZAPPA, FRANCO, RECH, IVAN, COVA, SERGIO, GHIONI, MASSIMO ANTONIO   +5 more
core  

New constraint-less methodology to avoid distortion at any speed in time correlated single photon counting

Time Correlated Single Photon Counting (TCSPC) has been historically subject to the count-rate vs distortion tradeoff. Several attempts to work around this limitation have been reported in the literature, either based on multichannel systems or on post ...
Gennaro Fratta, Piergiorgio Daniele, Giulia Acconcia, Ivan Labanca, Ivan Rech, Alessandro Cominelli   +5 more
core   +1 more source

Modeling the encoding structure and spatial resolution of photon counting imagers with Vernier anode readout

, 2016
We present the spatial resolution estimation methods for a photon counting system with a Vernier anode. A limiting resolution model is provided according to discussions of surface encoding structure and quantized noise.
Yan, Qiurong, Yang, Hao, Zhao, Baosheng, Liu, Yong'an   +3 more
core   +1 more source

Transparent Perovskite Light‐Emitting Diodes with Conductive Oxide Top Electrodes

Advanced Materials, EarlyView.
Transparent perovskite light‐emitting diodes (TrPeLEDs) enable simultaneous display and transparency, expanding application possibilities. Using a metal oxide buffer layer and pulsed laser deposition, TrPeLEDs with diverse compositions and architectures are demonstrated.
Michele Forzatti, Sergio Martínez‐Saiz, Morena Cervino, Edoardo Stanzani, Sandra Jenatsch, Qingsen Zeng, Joo Sung Kim, Dong‐Hyeok Kim, Eojin Yoon, Tae‐Woo Lee, Daniel Tordera, Henk J. Bolink   +11 more
wiley   +1 more source

Fractal superconducting nanowire single-photon detectors and their applications in polarimetric imaging

In this paper, we review the research and development of the fractal superconducting nanowire single-photon detectors (SNSPDs), including our demonstrations of high-performance devices and systems with over 80% system detection efficiency, negligibly low
Meng, Yun,, Feng, Yifan,, Zichi, Julien,, Hu, Xiaolong,, Gu, Chao,, Descamps, Thomas,, Xu, Liang,, Lan, Xiaojian,, Zou, Kai,, Hao, Zifan,, Zhu, Xiaotian,, Steinhauer, Stephan,, Zwiller, Val,, Iovan, Adrian,, Hu, Nan,, Chi, Xiaoming,, Cheng, Yuhao,, Gyger, Samuel,   +17 more
core   +1 more source

When Poor Exciton Dissociation Limits Photocurrents in Organic Solar Cells: Why Low Offset Non‐Fullerene Acceptor Blends Can't Be Efficient

Advanced Materials, EarlyView.
The energetic offset between the donor and the acceptor components in organic photoactive layers is central to the tradeoff between photovoltage and photocurrent losses. This Perspective covers the most important issues surrounding this topic in non‐fullerene acceptor blends, from the difficulty of accurately determining state energies and driving ...
Dieter Neher, Manasi Pranav
wiley   +1 more source