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Information × Registration Number 0302U005151, 0100U003299 , R & D reports Title Electrodynamical and optical properties of the fractal and superdimensional systems popup.stage_title Розщеплення спектрів магнітогідродинамічних коливань плазми гвинтовим магнітним полем. Структура сателітних альфвенівських резонансів у периферійній плазмі в гвинтовому магнітному полі. Дослідження розмірних ефектів в спектрах оптичної та фотоелектронної спектроскопії нанокластерів металів на діелектриках Head Girka I.O., Registration Date 25-03-2002 Organization Kharkov National University named after V.N.Karazin popup.description2 Object of investigation: magneto hydrodynamic (MHD) waves in nonuniform plasma of traps of stellarator (torsatron) type, nanoclasters of metals (copper) which are deposited on the dielectric layer or implanted in it. Purpose of investigation: to search the possibility to split eigen frequencies of MHD stellarator plasma oscillations with a weak helical nonuniformity of the confining magnetic field; to determine the fine structure of satellite Alfven resonance in the case when it is governed by the magnetic field nonuniformity rather than finite Larmor radius or electron inertia; to study the effect of metal nanoparticles dimensions and the method of their production on the optical and photoelectron properties of the metal - dielectric system. Methods of investigation: Fourier - Laplase transform, method of "narrow slab", perturbation for the case of degenerated spectrum, numerical calculations, measuring the optical spectra of absorption, infrared spectra of reflection and spectra of photoelectron emission of metal nanoclasters at the dielectric interface and inside it, the clasters were produced with vacuum evaporation, ion implantation and dynamic mixing. Spectrum of plasma MHD oscillations can be splitted with weak helical inhomogeneity of the confining magnetic field of torsatron. Alfven wave fields distribution is determined analytically in the case when it is governed by the magnetic field nonuniformity rather than finite Larmor radius or electron inertia. Technological conditions are found to produce two- dimension systems metal - dielectric with previewed set of dielectric and nonlinear optical properties, which can be used to control the laser beams. The results could be applied in laser beam control, in nuclear fusion investigations. Product Description popup.authors popup.nrat_date 2020-04-02 Close