نتایج جستجو برای: demolition photon counting

تعداد نتایج: 108738  

2009
Andrew D. Greentree T. P. Spiller

Electromagnetically induced transparency (EIT) has been often proposed for generating nonlinear optical effects at the single photon level; in particular, as a means to effect a quantum non-demolition measurement of a single photon field. Previous treatments have usually considered homogeneously broadened samples, but realisations in any medium will have to contend with inhomogeneous broadening...

Journal: :Nature Photonics 2017

Journal: :AJNR. American journal of neuroradiology 2017
A Pourmorteza R Symons D S Reich M Bagheri T E Cork S Kappler S Ulzheimer D A Bluemke

BACKGROUND AND PURPOSE Photon-counting detectors offer the potential for improved image quality for brain CT but have not yet been evaluated in vivo. The purpose of this study was to compare photon-counting detector CT with conventional energy-integrating detector CT for human brains. MATERIALS AND METHODS Radiation dose-matched energy-integrating detector and photon-counting detector head CT...

Journal: :Physica Medica 2020

Journal: :Physical Review A 2013

Journal: :IEEE Photonics Journal 2011

2002
S. D. Bartlett E. Diamanti B. C. Sanders

The performance of nondeterministic nonlinear gates in linear optics relies on the photon counting scheme being employed and the efficiencies of the detectors in such schemes. We assess the performance of the nonlinear sign gate, which is a critical component of linear optical quantum computing, for two standard photon counting methods: the double detector array and the visible light photon cou...

2007
Nick Bertone

Introduction: Over the past few years a growing number of companies have come to rely on Photon Counting for applications that range from particle sizing, atmospheric studies and advanced forms of biomedical research. Photon counting technology using Avalanche Photodiodes are achieving 70% photon detection efficiencies with sub nanosecond timing jitters and low dark counts (typically < 250cps)....

Journal: :Acta Crystallographica Section A Foundations and Advances 2018

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