Results 11 to 20 of about 178,073 (293)
Photon-Counting Computed Tomography (PCCT): Technical Background and Cardio-Vascular Applications
Diagnostics, 2023 Photon-counting computed tomography (PCCT) is a new advanced imaging technique that is going to transform the standard clinical use of computed tomography (CT) imaging. Photon-counting detectors resolve the number of photons and the incident X-ray energy
Antonella Meloni +8 more
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Efficient and Noise Robust Photon-Counting Imaging with First Signal Photon Unit Method
Photonics, 2021 Efficient photon-counting imaging in low signal photon level is challenging, especially when noise is intensive. In this paper, we report a first signal photon unit (FSPU) method to rapidly reconstruct depth image from sparse signal photon counts with ...
Kangjian Hua +4 more
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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
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Photonics, 2022 In photon-counting underwater optical wireless communication (UOWC), the recovery of the time slot synchronous clock is extremely important, and it is the basis of symbol synchronization and frame synchronization.
Haodong Yang +5 more
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Three-Dimensional Digital Zooming of Integral Imaging under Photon-Starved Conditions
Sensors, 2023 In this paper, we propose new three-dimensional (3D) visualization of objects at long distance under photon-starved conditions. In conventional three-dimensional image visualization techniques, the visual quality of three-dimensional images may be ...
Gilsu Yeo, Myungjin Cho
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Quantum-scissors device for optical state truncation: A proposal for practical realization [PDF]
, 2001 We propose a realizable experimental scheme to prepare superposition of the vacuum and one-photon states by truncating an input coherent state. The scheme is based on the quantum scissors device proposed by Pegg, Phillips, and Barnett [Phys. Rev.
A. Miranowicz +38 more
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IEEE Photonics Journal, 2018 For the detection of weak signals, photon counting technology has attracted much attention. In this paper, a method based on photon counting is experimentally demonstrated to realize corona discharge detection at solar-blind ultraviolet (UV) wavelength ...
Yan Wang, Yunsheng Qian, Xiangyu Kong
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Photon Counting Histogram for One‐Photon Excitation [PDF]
ChemPhysChem, 2003 The photon counting histogram (PCH) analysis is a fluorescence fluctuation method that is able to characterize the brightness and concentration of different fluorescent species present in a liquid sample. We find that the PCH model using a three-dimensional Gaussian observation volume profile is inadequate for fitting experimental data obtained from a ...
Perroud, T +3 more
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IEEE Photonics Journal, 2017 In this paper, a statistical approach based on an adaptive parametric estimator is proposed for the three-dimensional (3-D) reconstruction of objects under photon-starved conditions.
Jiajia Qi +3 more
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The Role of the Photon Counting Loss Effect in Time-Resolved Measurements of Fluorescence Anisotropy
Photonics, 2023 Determining the rate of rotation of molecules from their fluorescence anisotropy decay curves is a powerful method for studying molecular systems in biological applications.
Daniil A. Gvozdev +3 more
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