Results 71 to 80 of about 16,481 (212)

Bit Error Rates for Ultrafast APD Based Optical Receivers: Exact and Large Deviation Based Asymptotic Approaches [PDF]

, 2009
Exact analysis as well as asymptotic analysis, based on large-deviation theory (LDT), are developed to compute the bit-error rate (BER) for ultrafast avalanche-photodiode (APD) based optical receivers assuming on-off keying and direct detection.
Das, Abhik K., Hayat, Majeed M., Sun, Peng   +2 more
core   +1 more source

Correlated Transient Response of Buried Cables and Lightning Channel Radiation of Return Strokes of Five Rocket‐Triggered Lightning Strikes

High Voltage, EarlyView.
ABSTRACT Data from five rocket‐triggered lightning flashes are adopted to analyse the correlated transient response of buried cables and lightning channel radiations. These five flashes have the same termination point that is right above the buried cables and involve a total of 32 return strokes.
Mi Zhou, Xiaoyu Lei, Li Cai, Jianguo Wang, Weihan Zhao, Jinxin Cao, Denglei Duan, Maorong Geng, Yadong Fan, Jianping Wang   +9 more
wiley   +1 more source

High-performance HgCdTe avalanche photodetector enabled with suppression of band-to-band tunneling effect in mid-wavelength infrared

npj Quantum Materials, 2021
HgCdTe avalanche photodiodes promise various fascinating applications due to the outstanding capability of detecting weak signals or even single photon. However, the underlying transport mechanisms of diverse dark current components are still unresolved ...
Jin Chen, Jian Chen, Xin Li, Jiale He, Liao Yang, Jian Wang, Feilong Yu, Zengyue Zhao, Chuan Shen, Huijun Guo, Guanhai Li, Xiaoshuang Chen, Wei Lu   +12 more
doaj   +1 more source

FPGA‐accelerated streaming data reduction achieving an average compression ratio over 8000 in a 17.4 kHz, 840 kpixel CITIUS detector for quasi‐elastic gamma‐ray scattering

Journal of Synchrotron Radiation, EarlyView.
A high‐throughput field‐programmable gate array (FPGA)‐accelerated data‐reduction and ‐analysis pipeline combined with high‐performance computing enables the continuous handling of a 216 Gbps data stream from quasi‐elastic gamma‐ray scattering experiments at SPring‐8.We present a data‐acquisition and ‐analysis framework for quasi‐elastic gamma‐ray ...
Haruki Nishino, Masashi Kobayashi, Toshiyuki Nishiyama Hiraki, Yoshiaki Honjo, Kyosuke Ozaki, Mitsuhiro Yamaga, Nobumoto Nagasawa, Yoshitaka Yoda, Yasumasa Joti, Makina Saito, Takaki Hatsui   +10 more
wiley   +1 more source

Temperature effects on characteristics and performance of near-infrared wide bandwidth for different avalanche photodiodes structures

Results in Physics, 2019
In this paper, the influences of thermal and spectral variations on various structures of avalanche photodiodes (APDs) have been deeply investigated. The characteristics and performance of Silicon (Si), Gallium Arsenide (GaAs) and Indium Gallium Arsenide
I.S. Amiri, Fatma Mohammed Aref Mahmoud Houssien, Ahmed Nabih Zaki Rashed, Abd El-Naser A. Mohammed   +3 more
doaj   +1 more source

AlAsSb avalanche photodiodes with a sub-mV/K temperature coefficient of breakdown voltage

, 2011
The temperature dependence of dark current and avalanche gain were measured on AlAsSb p-i-n diodes with avalanche region widths of 80 and 230 nm. Measurements at temperatures ranging from 77 to 295 K showed that the dark current decreases rapidly with ...
Tan, C.H., Xie, S.
core   +1 more source

Pressure‐dependent coupling between arterial pressure and intercostal muscle blood‐flow index during acute hypotension in humans

Experimental Physiology, EarlyView.
Abstract Regulation of respiratory muscle blood flow during acute systemic hypotension remains poorly understood in humans because continuous assessment of microvascular perfusion during rapid haemodynamic transients has been technically challenging. Using diffuse correlation spectroscopy, we investigated second‐by‐second coupling between mean arterial
Masashi Ichinose, Mikie Nakabayashi, Yumie Ono   +2 more
wiley   +1 more source

A New Approach for Computing the Bandwidth Statistics of Avalanche Photodiodes [PDF]

, 2000
A new approach for characterizing the avalanche-buildup-time-limited bandwidth of avalanche photodiodes (APDs) is introduced which relies on the direct knowledge of the statistics of the random response time.
Dong, Guoquan, Hayat, Majeed M.
core   +1 more source

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

Advanced Functional Materials, Volume 36, Issue 27, 2 April 2026.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha, Yingshan Ma, Yong Nam An, Sung‐Un An, Hyeon Hak Jung, Suvi‐Tuuli Varjamo, Jiwon Yoo, Junho Min, Hanvit Kim, Faisal Ahmed, Sang Hoon Chae, Young Min Song, Weiwei Cai, Tawfique Hasan, Zhipei Sun, Dong‐Ho Kang, Hyeon‐Jin Shin, Yunyun Dai, Hoon Hahn Yoon   +18 more
wiley   +1 more source

An Analytical Approximation for the Excess Noise Factor of Avalanche Photodiodes with Dead Space [PDF]

, 1999
Approximate analytical expressions are derived for the mean gain and the excess noise factor of avalanche photodiodes including the effect of dead space.
Chen, Zikuan, Hayat, Majeed M., Karim, Mohammad Rezaul   +2 more
core   +1 more source