Results 31 to 40 of about 178,073 (293)

Study on the Innovative Development of Photon Counting CT from Patent and Clinical Research Perspectives

Zhongguo yiliao qixie zazhi
This 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, Hao XU, Xiaoying SUN, Bochao ZHOU, Zhanfeng XING   +4 more
doaj   +1 more source

Mid-infrared single-photon counting

Optics Letters, 2006
We report a procedure to detect mid-infrared single photons at 4.65 um via a two-stage scheme based on Sum Frequency Generation, using a Periodically Poled Lithium Niobate (PPLN) nonlinear crystal and a Silicon Avalanche Photodiode. An experimental investigation shows that, in addition to a high timing resolution, this technique yields a detection ...
Temporao, Guilherme, Tanzilli, Jean-Sébastien, Zbinden, Hugo, Gisin, Nicolas, Aellen, Thierry, Giovannini, Marcella Edith, Faist, Jérome   +6 more
openaire   +5 more sources

High efficiency photon counting using stopped light

, 2002
Single-photon detection and photon counting play a central role in a large number of quantum communication and computation protocols. While the efficiency of state-of-the-art photo-detectors is well below the desired limits, quantum state measurements in
A. Imamoḡlu, A. Kasapi, C. H. Bennett, D. F. Walls, K. Boller, M. A. Nielsen, M. O. Scully, S. Song, S. E. Harris, S. E. Harris   +9 more
core   +1 more source

Particle and Photon Detection: Counting and Energy Measurement

Sensors, 2016
Fundamental limits for photon counting and photon energy measurement are reviewed for CCD and CMOS imagers. The challenges to extend photon counting into the visible/nIR wavelengths and achieve energy measurement in the UV with specific read noise ...
James Janesick, John Tower
doaj   +1 more source

Compressive Reconstruction Based on Sparse Autoencoder Network Prior for Single-Pixel Imaging

Photonics, 2023
The combination of single-pixel imaging and single photon-counting technology enables ultra-high-sensitivity photon-counting imaging. In order to shorten the reconstruction time of single-photon counting, the algorithm of compressed sensing is used to ...
Hong Zeng, Jiawei Dong, Qianxi Li, Weining Chen, Sen Dong, Huinan Guo, Hao Wang   +6 more
doaj   +1 more source

Photon-number-resolution with sub-30-ps timing using multi-element superconducting nanowire single photon detectors

, 2008
A photon-number-resolving detector based on a four-element superconducting nanowire single photon detector is demonstrated to have sub-30-ps resolution in measuring the arrival time of individual photons.
Andrew J. Kerman, Boris Voronov, Bryan S. Robinson, Eric A. Dauler, Gagliardi RM, Gregory Goltsman, Joel K.W. Yang, Karl K. Berggren, Kok P, Scott A. Hamilton   +9 more
core   +1 more source

Time-correlated electron and photon counting microscopy

Communications Physics, 2023
Electron microscopy based on high-energy electrons allows nanoscopic analytical imaging taking advantage of secondarily generated particles. Especially for cathodoluminescence, the correlation between primary incident electrons and emitted photons ...
Sotatsu Yanagimoto, Naoki Yamamoto, Tatsuro Yuge, Hikaru Saito, Keiichirou Akiba, Takumi Sannomiya   +5 more
doaj   +1 more source

Highly nonclassical photon statistics in parametric down conversion

, 2006
We use photon counters to obtain the joint photon counting statistics from twin-beam non-degenerate parametric down conversion, and we demonstrate directly, and with no auxiliary assumptions, that these twin beams are ...
A. I. Lvovsky, Barry C. Sanders, Edo Waks, Eleni Diamanti, U. Leonhardt, Yoshihisa Yamamoto   +5 more
core   +1 more source

Engineered extracellular vesicles enriched with the miR‐214/199a cluster enhance the efficacy of chemotherapy in ovarian cancer

Molecular Oncology, EarlyView.
Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang, Ayesha Alvero, Yi Qin, Mingjin Wang, Alexandra Fox, Yanfeng Li, Michael Millman, Amy Kemper, Gil Mor, Xian Shuang Liu, Michael Chopp, Zheng Gang Zhang, Yi Zhang   +12 more
wiley   +1 more source

Phase estimation by photon counting measurements in the output of a linear Mach Zehnder (MZI) interferometer

, 2012
Photon counting measurements are analyzed for obtaining a classical phase parameter in linear Mach Zehnder interferometer (MZI), by the use of phase estimation theories.
Afek, Anisimov, Assaf, Assaf, Barak, Barak, Ben-Aryeh, Ben-Aryeh, Bollinger, Braunstein, Braunstein, Brif, Cabrera, Campos, Campos, Campos, Caves, Chiruvelli, Demkowicz-Dobrzanski, Dorner, Dowling, Dunningham, Gerry, Gerry, Gerry, Gerry, Gerry, Gerry, Gerry, Gilbert, Haack, Helstrom, Higgins, Huver, Khoury, Kok, Lee, Miller, Mitchell, Noh, Noh, Ou, Plick, Rajteri, Rivas, Rubin, Seshadreesan, Waks, Wildfeuer, Xiang, Yacob Ben-Aryeh   +50 more
core   +1 more source