Results 41 to 50 of about 738,419 (256)

Three-Dimensional Imaging via Time-Correlated Single-Photon Counting

Applied Sciences, 2020
Three-dimensional (3D) imaging under the condition of weak light and low signal-to-noise ratio is a challenging task. In this paper, a 3D imaging scheme based on time-correlated single-photon counting technology is proposed and demonstrated.
Chengkun Fu, Huaibin Zheng, Gao Wang, Yu Zhou, Hui Chen, Yuchen He, Jianbin Liu, Jian Sun, Zhuo Xu   +8 more
doaj   +1 more source

Custom-Technology Single-Photon Avalanche Diode Linear Detector Array for Underwater Depth Imaging

Sensors, 2021
We present an optical depth imaging system suitable for highly scattering underwater environments. The system used the time-correlated single-photon counting (TCSPC) technique and the time-of-flight approach to obtain depth profiles.
Aurora Maccarone, Giulia Acconcia, Ulrich Steinlehner, Ivan Labanca, Darryl Newborough, Ivan Rech, Gerald S. Buller   +6 more
doaj   +1 more source

Modeling charge transport in photon-counting detectors

, 2018
The purpose of this study is to review and compare simulation methods for describing the transport of charge clouds in silicon based semiconductor detectors and investigate the effects on energy spectrum for silicon based photon-counting strip detectors.
Danielsson, Mats,, Yuan Fang, Yuan Yao, Mats Danielsson, Cheng Xu, Xu, Cheng,, Yao, Yuan,, Badano, Aldo,, Pelc, Norbert,, Fang, Yuan,, Norbert Pelc, Aldo Badano   +11 more
core   +1 more source

Comparative assessment of crystallographic and cryo‐EM models in the Protein Data Bank

FEBS Open Bio, EarlyView.
Raw data obtained by X‐ray crystallography or cryo‐EM result in experimental maps, ultimately fitted by atomic models. Although the physical principles are different, the final results can be viewed, compared, and evaluated in the same way. With cryogenic electron microscopy (cryo‐EM) on track to surpass X‐ray crystallography as the preferred method ...
Alexander Wlodawer, Pawel Rubach, Zbigniew Dauter, Wojciech Dec, Dariusz Brzezinski, Marta Kulik, Wladek Minor, Mariusz Jaskolski   +7 more
wiley   +1 more source

Photon-Counting Spectrometers Based on Superconducting Nanowire Single-Photon Detectors

Electromagnetic Science
Optical spectrum analysis provides a wealth of information about the physical world. Throughout the development of optical spectrum analysis, sensitivity has been one of the major topics and has become essential in applications dealing with faint light ...
Mingzhong Hu, Jingyuan Zheng, Kaiyu Cui, Wei Zhang, Yidong Huang   +4 more
doaj   +1 more source

Identification and characterization of a gene conferring stress resistance in Escherichia coli and cyanobacteria

FEBS Open Bio, EarlyView.
Functional screening identified PcSyn14890, a cyanobacteria‐specific protein that enhances growth and stress resistance in E. coli and Synechocystis PCC6803. Although we expected it to function as a molecular chaperone, it was unable to protect against thermal aggregation of GAPDH.
Akiyo Yamada, Takaaki Tanaka, Manaka Uehara, Keigo Nakano, Ken Morishima, Rintaro Inoue, Masaaki Sugiyama, Masafumi Yohda   +7 more
wiley   +1 more source

Twenty Years of Rad-Hard K14 SPAD in Space Projects

Sensors, 2015
During last two decades, several photon counting detectors have been developed in our laboratory. One of the most promising detector coming from our group silicon K14 Single Photon Avalanche Diode (SPAD) is presented with its valuable features and space ...
Vojtěch Michálek, Ivan Procházka, Josef Blažej   +2 more
doaj   +1 more source

Superconducting single-photon detectors fabricated via a focused electron beam-induced deposition process

AIP Advances, 2023
Superconducting detectors have become essential devices for high-performance single-photon counting over a wide wavelength range with excellent time resolution.
Stephan Steinhauer, Adrian Iovan, Samuel Gyger, Val Zwiller   +3 more
doaj   +1 more source

Using fluorescence fluctuation spectroscopy to quantify molecular dynamics within cells

FEBS Open Bio, EarlyView.
Microscopy techniques like fluorescence correlation spectroscopy (FCS) and number and brightness analysis (N&B) allow to quantify concentrations, diffusion rates, and oligomerization of fluorescently labeled molecules in the living cell. In this protocol the principles of how to set up these types of experiments are described including calibration ...
Mark A. Hink
wiley   +1 more source

Multi-Photon Entanglement [PDF]

, 2009
Major efforts in quantum information science are devoted to the development of methods that are superior to the one of classical information processing, for example the quantum computer or quantum simulations.
Wieczorek, Witlef
core   +1 more source