نتایج جستجو برای: photon gas plasma
تعداد نتایج: 656061 فیلتر نتایج به سال:
We demonstrate the coupling of single color centers in diamond to plasmonic and dielectric photonic structures to realize novel nanophotonic devices. Nanometer spatial control in the creation of single color centers in diamond is achieved by implantation of nitrogen atoms through high-aspect-ratio channels in a mica mask. Enhanced broadband single-photon emission is demonstrated by coupling nit...
Polypropylene (PP) powders are coated with silica nanoparticles in a fluidized bed to improve the flow behavior of and processability powder fusion. The produced situ via dusty plasma-enhanced chemical vapor deposition (PECVD) an atmospheric-pressure Ar/O2 plasma jet fixed at distributor plate bed. Hexamethyldisiloxane is used as precursor nanoparticles. influence oxygen concentration gas numbe...
in this paper, thermal effect of plasma arc welding is investigated, and temperature field of ferrite stainless steel is acquired. thermal effect of plasma arc and subsequently the generated temperature field in the work piece is the key for analysis and optimization of this welding process, which is the main goal of this paper. finite element simulation of welding process by simplec method and...
We derive the force exerted in the background plasma by an arbitrary distribution of non interacting quasi-particles, corresponding to either collective excitations of the plasma (plasmons, phonons) or dressed particles (photons, neutrinos). Our approach is based on the effective Hamiltonian describing the quasi-classical dynamics of the individual particles in the presence of a background medi...
The information rates achievable with a photon-gas model of electromagnetic radiation are studied. At any frequency, information rates over the photon-gas model essentially coincide with the Shannon capacity when the signal-to-noise ratio is below a threshold. Only above the threshold does the photon gas incur in a significant loss in information rates; the loss can amount to half of the capaci...
M. J. Kushner Department of Electrical Engineering and Computer Science, University of Michigan, 1301 Beal Avenue, Ann Arbor, Michigan 48109, USA E-mail: [email protected] Y. Yang Department of Electrical and Computer Engineering, Iowa State University, Ames, Iowa 50011, USA M. Strobel, S. Kirk Corporate Research Process Laboratory, 3M Company, 3M Center, St. Paul, Minnesota 55144, USA aPart 1: ...
We consider strong-field effects in laboratory and astrophysical plasmas and high intensity laser and cavity systems, related to quantum electrodynamical (QED) photon–photon scattering. Current state-of-the-art laser facilities are close to reaching energy scales at which laboratory astrophysics will become possible. In such high energy density laboratory astrophysical systems, quantum electrod...
To investigate the effect of feedback from active galactic nuclei (AGN) on their surrounding medium, we study diffuse X-ray emission galaxy groups and clusters by coupling Astrophysical Plasma Emission Code (APEC) with cosmological hydrodynamic simulation involving AGN feedback. We construct a statistical sample synthetic Chandra photon maps to observationally characterize ambient medium. show ...
A sealed gas photon detector with a GEM (Gas Electron Multiplier) cascade coupled to a semitransparent CsI photocathode has been studied. High gains, reaching 10, and fast anode signals, of a width of 15 ns, were obtained with this GEM-Photomultiplier in Ar/CH4 (95/5), in a photon counting mode. The life-time of this first prototype detector under high photon flux and large anode currents is pr...
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