نتایج جستجو برای: photon emission

تعداد نتایج: 231968  

2002
K. E. Britton

Nuclear medicine techniques designed to identify bone metastases are reviewed. They include planar and whole body, single photon emission tomography (SPET), F-18 Fluorine and FDG, deoxyglucose, positron emission tomography (PET), bone imaging.

2013
Serkan Ates Imad Agha Angelo Gulinatti Ivan Rech Antonio Badolato Kartik Srinivasan

Single epitaxially-grown semiconductor quantum dots have great potential as single photon sources for photonic quantum technologies, though in practice devices often exhibit nonideal behavior. Here, we demonstrate that amplitude modulation can improve the performance of quantum-dot-based sources. Starting with a bright source consisting of a single quantum dot in a fiber-coupled microdisk cavit...

Journal: :Journal of photochemistry and photobiology. B, Biology 2006
Roeland Van Wijk Masaki Kobayashi Eduard P A Van Wijk

Ultra-weak photon emission of a living system has received scientific attention because of its potential for monitoring oxidative metabolism and oxidative damage to tissues. Heretofore, most studies have focused only on the emission from hands. The data regarding emission from other anatomic locations are limited. A previous multi-anatomic site recording of four subjects quantitatively demonstr...

2015
Thomas M. Barlow Robert Bennett Almut Beige

Quantum optical systems, like trapped ions, are routinely described by master equations. The purpose of this paper is to introduce a master equation for two-sided optical cavities with spontaneous photon emission. To do so, we use the same notion of photons as in linear optics scattering theory and consider a continuum of travelling-wave cavity photon modes. Our model predicts the same stationa...

Journal: :Brain research 2011
Blake T Dotta Carly A Buckner Robert M Lafrenie Michael A Persinger

Light flashes delivered to one aggregate of cells evoked increased photon emission in another aggregate of cells maintained in the dark in another room if both aggregates shared the same temporospatial configuration of changing rate, circular magnetic fields. During the presentation of the same shared circumcerebral magnetic fields increases in photon emission occurred beside the heads of human...

Journal: :Nano letters 2016
Thang B Hoang Gleb M Akselrod Maiken H Mikkelsen

Efficient and bright single photon sources at room temperature are critical components for quantum information systems such as quantum key distribution, quantum state teleportation, and quantum computation. However, the intrinsic radiative lifetime of quantum emitters is typically ∼10 ns, which severely limits the maximum single photon emission rate and thus entanglement rates. Here, we demonst...

Journal: :Progress of Theoretical Physics 1997

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