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Information × Registration Number 0222U001922, 0120U102178 , R & D reports Title Wave processes and effects in active resonant layered plasma media and metamaterials. popup.stage_title Head Rapoport Yuriy G., Доктор фізико-математичних наук Registration Date 04-02-2022 Organization Taras Shevchenko National University of Kyiv popup.description2 Object of research: metamaterials including active graphene metasurfaces, the system "Earth - Plasma Environment (ZNPS)", acoustic-gravitational waves (AGH) and Rossby waves in the atmosphere, new wave structures and effects. Purpose: construction of the theory of wave processes and effects in layered, waveguide and focusing, complex and active artificial and natural environments; detection of new wave structures and effects arising from resonant, active and nonlinear synergistic processes; finding opportunities for effective control over wave processes in resonant artificial media; determination of factors influencing the characteristics of waves in an open dynamic system ZNPS. Research methods: a single metamaterial approach to modeling waves in artificial and natural environments, analytical and numerical methods, analysis of terrestrial and satellite measurements, spectral data processing. In the second stage, a numerical model for the electromagnetic characteristics of nonlinear layered dielectric-graphene and active hyperbolic metamaterials was developed. Numerical algorithms are constructed and the results of test calculations for the influence of parameters on the electrodynamic characteristics of metasurfaces with graphene / plasma-like elements are obtained. Lattice plasmon-polariton high-quality resonances were found. A method and algorithm for numerical calculations for modeling the propagation of a two-dimensional beam of electronic state waves in a two-dimensional electron gas of the graphene type with a finite effective electron mass are proposed. An algorithm has been developed for the penetration of a set of both coherent and mutually incoherent modes with close frequencies from the Earth's level into the ionosphere, taking into account nonlinearity, dissipation, diffraction, and atmospheric stratification. An algorithm for recognizing different types of linear AGH by satellite measurements is proposed. Product Description popup.authors Yevtushevs'kyj Oleksandr M. Ivanyga Oksana I. Ivchenko Vasyl М. Volkova Tetyana V. Hensitskyy Nazar R. Horbanʹ Yaroslav С. Grytsai Asen V. Zaderko Olexander М. Zolotaryuk Yaroslav O Kozak Lyudmyla V. Kryvodubskyj Valerij N. Milinevsky Gennady P. Mishchyshyna Iryna G. Petryshchevsʹkyy Serhiy S. Reshetnyk Volodymyr M. Fedorenko Alla K. popup.nrat_date 2022-03-09 Close