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Information × Registration Number 0212U002057, 0109U001448 , R & D reports Title Electrodynamic properties of the plasma-like media with micro- and nano-objects, the metastructures and low pressure gas discharge popup.stage_title Head Azarenkov Mikola Olexiyovich, Доктор фізико-математичних наук Registration Date 18-01-2012 Organization Kharkov National University named after V.N. Karazin popup.description2 The object of research - carbon nanofibers and nanotubes in gas discharge chambers, low pressure gas discharge, electromagnetic waves in waveguides that consist of the modern metamaterials, in plasma-like and plasma-metal structures. The aim of the work - theoretical investigation of the generation processes of charged and neutral particles, charged particles recombination, particles and energy transfer, energy absorption in high frequency discharge in which one of working gases is hydrocarbon, that underlay the formation of dusty particles of submicron and nanometer dimensions, carbon nanotubes and nanofibers; the creation of the self-consistent kinetic theory of gas discharge that is sustained by the eigen waves under the conditions of low pressure; the investigation of the waveguide structures properties with metamaterial and plasma-like media inclusion with parameters necessary for modern nanotechnologies and nanoprocesses usage. Methods of research - theoretical analysis and computer numerical modeling. It has been created theoretical models that describe the creation of vertical directed carbon nanofibers and one-layered nanotubes on the bottom of the discharge chamber over a nanoparticles-catalyst. It has been investigated the influence of hydrocarbon radicals, ions and atoms of the gas, that is used for etching, on the nanostructure growth, on the degree of nanostructure coverage by different particles, on the diffusion length and on the stay duration of carbon atoms on the surface of catalyst, on the effective flow of the carbon atoms on the catalyst surface. It has been found the temperature changing along the nanofiber and along the substrate on which it is placed. It has been investigated processes in dusty argon-hydrocarbon plasma and properties of such plasma in kinetic approximation. It has been obtained the dependence of plasma parameters upon radius and density of dusty particles. It has been shown that the increase of electric field intensity leads to the increase of the high energy electron number. It has been shown the possibility of effective control of the ions density, radicals and non-radicals in discharge by the variation of the power that is injected into discharge. It has been created the self-consistent kinetic model, that allow to calculate the electron and ions density spatial distributions, electrons distribution on energy and plasma ambipolar potential for discharge volumes, that possess the symmetry of flat layer, cylinder and sphere. It has been created the kinetic theory of electromagnetic waves that are propagated in axially-symmetric plasma systems in the presence of external magnetic field. It has been investigated the influence of plasma electron effective frequency, external azimuthal magnetic field value, geometric parameters of coaxial plasma-metal structure, plasma density and external magnetic field nonuniformity on the dispersion properties, attenuation and spatial distribution of symmetric and dipolar electromagnetic waves.It has been investigated the dispersion properties and electromagnetic waves spatial structure in the layer of left-handed material bounded by two ordinary dielectrics with different values of permittivity. Product Description popup.authors Івко С. Івко Т. Азарєнков М. Ашеко А. Базилевська Т. Бурмака Г. Гірка В. Галайдич В. Гапон О. Грішанов М. Гриценко В. Гущин В. Денисенко І. Заславський О. Олефір В. Споров О. Ходусов В. popup.nrat_date 2020-04-02 Close