Results 31 to 40 of about 537,589 (297)
Evaluation and Improvement of Lidar Performance Based on Temporal and Spatial Variance Calculation
Applied Sciences, 2019 Poisson distributions have the characteristic of equality between their variance and mean values. By constructing a calculation model of the temporal variance and spatial variance, the relationship between the variance and mean values of lidar analog ...
Fei Gao +7 more
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Effect of Deep-Level Defects on the Performance of CdZnTe Photon Counting Detectors
Sensors, 2020 The effect of deep-level defects is a key issue for the applications of CdZnTe high-flux photon counting devices of X-ray irradiations. However, the major trap energy levels and their quantitive relationship with the device’s performance are not yet ...
Yingrui Li +7 more
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Single-Pixel Photon-Counting Imaging Based on Dual-Comb Interferometry
Nanomaterials, 2021 We propose and experimentally demonstrate single-pixel photon counting imaging based on dual-comb interferometry at 1550 nm. Different from traditional dual-comb imaging, this approach enables imaging at the photon-counting regime by using single-photon ...
Huiqin Hu +6 more
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A Capacitive Quenching Circuit for Use with Single Photon Avalanche Detectors [PDF]
, 2013 In this thesis a Capacitive Quenching Circuit (CQC) is modelled using Linear Technology's Simulation Program with Integrated Circuit Emphasis (LT SPICE). Key components are optimised and the entire circuit is modelled. Once satisfied with the simulation,
Goldberg, Graham R
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Single-Photon Counting Detectors
IEEE Photonics Journal, 2011 Various new developments for array detectors based on Silicon Single-Photon Avalanche Diodes (SPADs) were reported. Improved Si-SPAD technologies brought higher detection efficiency in the red wavelength range. Higher performance was attained with InGaAs/
Sergio D. Cova, Massimo Ghioni
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Two-photon-counting interferometry [PDF]
Physical Review A, 2013 Two-photon-counting interferometry has been realized by measuring the electrical current due to two-photon absorption in the space-charge layer of a semiconductor detector located at the output port of an interferometer. We apply this technique to study the correlation properties of twin beams issued from parametric fluorescence.
Boitier, Fabien +5 more
openaire +2 more sources
Low-noise CMOS SPAD arrays with in-pixel time-to-digital converters
, 2022 Paper 91140CWe present our latest results concerning CMOS Single-Photon Avalanche Diode (SPAD) arrays for high-throughput parallel single-photon counting. We exploited a high-voltage 0.35 µm CMOS technology in order to develop low-noise CMOS SPADs.
Zou, Yu +11 more
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High-Flux Fast Photon-Counting 3D Imaging Based on Empirical Depth Error Correction
Photonics, 2023 The time-correlated single-photon-counting (TCSPC) three-dimensional (3D) imaging lidar system has broad application prospects in the field of low-light 3D imaging because of its single-photon detection sensitivity and picoseconds temporal resolution ...
Xiaofang Wang +4 more
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Photon Counting 3-D Object Recognition Using Digital Holography [PDF]
, 2013 We present an analysis of the recognition performance of 3-D objects reconstructed from digital holograms recorded under photon counting conditions. The digital holograms are computed by applying four-step phase-shifting techniques to interferograms ...
Pla, Filiberto +3 more
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Zhongguo yiliao qixie zazhiThis study analyzes the global patents development and clinical applications of photon counting CT (PCCT) technology in the past 20 years, including the trends of global patent application, the patent portfolio planning, key innovations and technological
Ping WANG +4 more
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