Перегляд за автором "Odarenko, E. N."
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Публікація Bragg reflection and transmission of light by one-dimensional gyrotropic magnetophotonic crystal(IEEE, 2017) Shmat'ko, A. A.; Mizernik, V. N.; Odarenko, E. N.; Rokhmanova, T. N.Reflection and transmission coefficients for onedimensional magnetophotonic crystal with a bilayer unit cell are obtained in analytical form. The bilayer consists of arbitrary gyrotropic media. Analytical dispersion equation for gyrotropic multilayer periodic structure is obtained. Different regimes of bulk and surface wave’s propagation in structure layers are investigated. System parameters values that correspond to both total reflection and total transmission by gyrotropic Bragg structure are found. The possibility of band structure controlling with an external magnetic field is shown.Публікація Difraction of Electromagnetic Wave on Infinite Cylinder with Metamaterial Coating(Institute of Radiophysics and Electronics National Academy of Sciences of Ukraine, 2014) Kostina, N. A.; Odarenko, E. N.In this paper a task about interaction of plane monochromatic wave with a metallic or dielectric cylinder with a coating the material parameters of that can have both positive and negative values is considered. Implied, that the negative values of permittivity and permeability correspond to the negative refraction index of metamaterial. Basic attention was paid to development of the methods for the field distribution visualization inside the cylinder coating and in area of nearby space.Публікація Dispersion Properties of a One-dimensional Anisotropic Magnetophotonic Crystal with a Gyrotropic Layer(IEEE, 2016) Shmat'ko, A. A.; Mizernik, V. N.; Odarenko, E. N.; Yampol'skii, V. A.; Rokhmanova, T. N.; Galenko, A. Y.In this work, we obtain the dispersion relation for magnetophotonic one-dimensional crystal with a gyrotropic plasma layer in the analytical form. The numerical analysis of the dispersion relation for waves in the crystal at different parameters of the effective permittivity of the plasma layer is carried out. We predict the propagation of bulk fast and slow waves in such structures. The transmission and forbidden bands in the dispersion diagram for the bulk waves are presented in the area for surface plasma waves.Публікація Dispersion Properties of TM and TE Modes of Gyrotropic Magnetophotonic Crystals(InTech, 2017) Shmat'ko, A. A.; Mizernik, V. N.; Odarenko, E. N.; Lysytsya, V. T.This chapter discusses the propagation of TM and TE waves in the one-dimensional gyrotropic magnetophotonic crystals with ferrite and plasma-like layers. Elements of the transfer matrix are calculated in closed analytical form on the base of electrodynamic problem rigorous solution for arbitrary location of the gyrotropic elements on the structure period. Dispersion equation of the layered periodic structure with gyrotropic elements is obtained. Dispersion properties of the structure for TE and TM modes are analyzed for different configurations of magnetophotonic crystals (ferrite and plasma-like layers). Existence areas of transmission bands for surface and bulk waves are obtained. The effect of problem parameters on the dispersion properties of magnetophotonic crystals for TM and TE modes is investigated. Regimes of complete transmission of wave through limited magnetophotonic crystal are analyzed for bulk and surface waves.Публікація Effect of Electron Beam Thickness Upon the Performance of a Resonant Type-O Carcinotron with a Tapered Magnetostatic Field(Begell House, 1999) Odarenko, E. N.; Shevchenko, N. G.Theoretical analysis of O-type generator efficiency is performed for different thickness of sheet electron beam and spatial distributions of magnetic focusing field. Tilted focusing field and locally nonuniform one are considered. Effect of the electron beam thickness on the beam-wave interaction efficiency is investigated for regimes of maximum amplification and maximum power.Публікація Extraordinary Reflection from Photonic Crystal with Metamaterials(IEEE, 2016) Shmat'ko, A. A.; Kazanko, A. V.; Mizernik, V. N.; Odarenko, E. N.; Yampol'skii, V. A.; Rokhmanova, T. N.We predict an extraordinary perfect reflection of a plane wave from a finite-thickness photonic crystal made of dielectrics and metamaterials. The physical nature of this phenomenon is revealed. We show that this complete reflection is related to a resonance of surface plasmon-polariton wave along the crystal thickness.Публікація Interaction of the electromagnetic radiation with two-dimensional nonlinear photonic crystal(Publishing House "Education and science", Praha, 2017) Yevtushenko, D. A.; Odarenko, E. N.Linear and nonlinear photonic crystals illuminated by plane wave are considered in this work. Kerr nonlinearity is assumed. The modeling of such structures and calculations of the dispersion diagrams and transmittance are performed in software packages MEEP and MPB.Публікація Localized field enhancement in slow-wave modes of modified Bragg waveguide(IEEE, 2017) Odarenko, E. N.; Sashkova, Y. V.; Shmat'ko, A. A.Modified scheme of Bragg reflection waveguide with additional layers between the hollow core and cladding is considered. Dispersion diagrams are calculated on the base of dispersion equations solutions for ordinary and modified Bragg waveguides. Slow-wave regimes are considered for both kinds of structure. Electric field spatial distributions for localized slowwave modes of Bragg reflection waveguide are obtained. It is shown that modified scheme of Bragg waveguide provides the enhanced localization of the surface modes field in the hollow core. Therefore modified Bragg waveguide is the promising electrodynamic system not only for laser-driven accelerators but also for the vacuum electron devices where usual slow-wave structures are unconvenient.Публікація Magnetophotonic crystal on base of gyrotropic semiconductor and metamaterial(Lesya Ukrainka Volyn National University, 2018) Odarenko, E. N.; Shmat'ko, A. A.; Mizernik, V. N.; Maslov, V. A.One-dimensional magnetophotonic crystal which contains semiconductor and metamaterial layers is considered. Dispersion properties are investigated within the framework of ABCD matrix method for gyrotropic periodical structures. Surface waves exist conditions are considered for different system parameters. Possibility of narrow-band filters development is shown on the base of multilayered structure under investigation.Публікація Mechanically Tunable Wire Medium Metamaterial in the Millimeter Wave Band(EMW Publishing, 2016) Ivzhenko, L. I.; Odarenko, E. N.; Tarapov, S. I.The paper is devoted to experimental and theoretical study of spectra zone characteristics of the wire medium metamaterial with mechanically tunable unit cell. We experimentally demonstrated the effective control possibility of the spectral characteristics of wire medium metamaterial by varying its elementary unit-cell geometry. We established conditions under which the experimental implementation of the wire medium metamaterial at microwaves possesses the properties of a plasma-like medium and the properties band gap structure. A good agreement between the experiment and theory is demonstrated.Публікація Microwave Heating of Low-Temperature Plasma and Its Application(IntechOpen, 2021) Frolova, T. I.; Churyumov, G. I.; Odarenko, E. N.; Gerasimov, V.; Buts, V.In this chapter, the results of theoretical and experimental studies of the interaction of an electromagnetic field with a plasma (fundamental interaction of the wave-particle type) both in the regime of standing waves (in the case of a resonator) and in the case of traveling waves in a waveguide are presented. The results of computer modeling the distribution of a regular electromagnetic field for various designs of electrodynamic structures are considered. The most attractive designs of electrodynamic structures for practical application are determined. A brief review and analysis of some mechanisms of stochastic plasma heating are given as well as the conditions for the formation of dynamic chaos in such structures are determined. Comparison analysis of microwave plasma heating in a regular electromagnetic field (in a regime with dynamical chaos) with plasma heating by random fields is considered. It is shown, that stochastic heating of plasma is much more efficient in comparison with other mechanisms of plasma heating (including fundamental interaction of the wave-wave type). The results obtained in this work can be used to increase the efficiency of plasma heating as well as to develop promising new sources of electromagnetic radiation in the microwave and optical ranges.Публікація Microwave oscillator – the orotron with the DC magnetic nonuniformity(SPIE, 1993) Odarenko, E. N.; Shmat'ko, A.The effect of the profiled profiled focusing field on the operation of the the orotron is studied. The two-dimensional model of the beam-wave interaction is described. The decrease of the starting current and efficiency enhancement are possible for chosen theoretical model.Публікація Millimeter Waves Hybrid Devices – Theory and Simulation(IEEE, 2002) Odarenko, E. N.; Shmat'ko, A. A.Hybrid mm waves O-type electron devices are considered. The multidimensional nonlinear self-consistent theory of beam-wave interaction in different stages of hybrid devices has been developed. Output characteristics of hybrid amplifiers for different values of input signal are calculated.Публікація New Technologies of Laser Hardening of Parts of Fuel Equipment(Sumy State University, 2023) Hnatenko, O. S.; Afanasieva, O. V.; Lalazarova, N. O.; Kurskoy, Yu. S.; Odarenko, E. N.; Sashkova, Y. V.; Ivanchenko, O. V.Laser thermal hardening of steel (laser hardening) consists in heating a section of the steel surface above the phase transition temperature by laser radiation, followed by rapid cooling due to heat removal. As a result of this treatment, martensite is formed – a saturated solid carbon solution in α-iron. For laser hardening, gas CO2 lasers, solid-state (mainly Nd:YAG) and fiber lasers with a power of 0.5 kW or more are most often used. Optical systems for deploying and scanning the beam allow you to harden large areas of the surface with maximum efficiency. Not all products need processing of significant areas. Measuring and cutting tools, parts of fuel equipment, pump injectors are subject to significant abrasive wear of individual small areas. Less powerful lasers can be used to process them. There are no results of using low power pulsed lasers (up to 20 W) for surface hardening of steel products. The purpose of this work is to determine the modes of surface hardening of parts and tools made of carbon and alloy steels using low power pulsed solid-state YAG lasers. For laser hardening, a solid-state YAG laser with a power of 5 W (diode pumping, radiation wavelength = 1.064 µm, pulsed mode) was used. The use of a nonlinear crystal made it possible to obtain UV radiation from λ = 0.355 µm (third harmonic). Processing with single pulses and multi-pulse processing with short pulses were investigated. Thermal hardening was carried out on carbon and alloy steels of various compositions: 20, 45, У12, Р6M5, Р9, ШХ15, structural and tool steels for the purpose. The possibility of hardening by UV radiation was evaluated on steels 20, 45, У12 and ЩХ15. The efficiency of laser thermal hardening was evaluated by measuring microhardness. For surface hardening of products, where partial melting of the surface is possible, low-power pulsed lasers can be used. Laser hardening by UV radiation is a promising direction for thermal hardening of steels without surface melting. Hardening with a low-power laser is expedient for hardening parts of fuel equipment.Публікація Nonlinear Theory of Relativistic Microwave Electron Devices(Institute of Radiophysics and Electronics National Academy of Sciences of Ukraine, 1998) Chursin, V. N.; Odarenko, E. N.; Shmat'ko, A. A.The increase of output power is an important task of the theoretical and experimental research of resonant oscillators of millimeter and submillimeter waves (orotron, diffraction radiation generator, laddertron, ledatron, etc.). It is well known that the application of relativistic voltages for acceleration of electron beams in millimeter wave oscillators allows to obtain high levels of output power of radiation. Dynamic relativistic variation of the electron mass can considerably change the character of the electron-wave interaction process. This effect is essential if the magnetic guide field strength is limited or dc focusing field is nonuniform. In this case the transverse electron-wave interaction and to motion of electrons in the transverse direction should be taken into account, and for a theoretical description of the device a multi-dimensional model should be applied.Публікація Novel Double-Mode O-Type Source of Coherent Subterahertz Radiation(IEEE, 2010) Odarenko, E. N.; Shmat'ko, A. A.; Yudintcev, P. V.; Vasilenko, V. M.A new type of subterahertz generator at harmonics of BWO oscillations in the mode of diffraction radiation is proposed. The nonlinear multidimensional theory of the double-mode beam-wave interaction at the harmonics of the BWO is developed. The regions of problem parameters values, corresponding to diffraction radiation excitation are defined.Публікація Novel THz Sources with Profiled Focusing Field and Photonic Crystal Electrodynamic Systems(IEEE, 2016) Odarenko, E. N.; Shmat'ko, A. A.Methods of the efficiency enhancement of the vacuum terahertz and subterahertz sources based on the resonance of O-type generators with a prolonged interaction (orotron, diffraction radiation oscillator, ledatron, laddertron) are considered. Theoretical analysis is performed on the basis of multidimensional nonlinear self-consistent theory of beam-wave interaction.Публікація Orotron With Magnetic Nonuniformity – Advanced Millimeter Waves Source(IEEE, 2002) Odarenko, E. N.; Shmat'ko, A.; Tsvyk, A.Millimeter waves generator - orotron with nonuniform magnetostatic focusing field is considered. Two-dimensional nonlinear theory of beam-wave interaction is developed for investigation of operating characteristics of generator. Usage of locally nonuniform focusing field results in efficiency enhancement on the different regimes of electron device.Публікація Photonic Crystal and Bragg Waveguides for THz Electron Devices(IEEE, 2016) Odarenko, E. N.; Shmat'ko, A. A.Dispersion characteristics and spatial field distributions in the photonic crystal waveguides and Bragg ones are considered. It is shown that these waveguides can be used as slow-wave systems in the THz vacuum electron devices.Публікація Photonic crystals resonance structure for optical biosensors("Nauka i Studia", Przemysl, 2017) Zaiets, T. M.; Maksymenko, D. A.; Odarenko, E. N.In this work we consider the dispersion characteristics of biosensors based on usage of photonic crystal resonators. The photonic crystals kind called a holes-on-dielectric structure is presented. This type is chosen due to several factors, including easiness of fabricating and coupling with single mode optical waveguides.