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Information × Registration Number 0223U001062, 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 25-01-2023 Organization Taras Shevchenko National University of Kyiv popup.description2 Research object: metamaterials, including active graphene metasurfaces, the system "Earth - near-Earth plasma medium (ZNPS)", acoustic-gravitational waves (AGW) and Rossby waves in the atmosphere, new wave structures and effects. The purpose of the work: 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 the possibilities of effective control over wave processes in resonant artificial environments; determination of factors affecting the characteristics of waves in the open dynamic system of the ZNPS. Research methods: a unified metamaterial approach for modeling waves in artificial and natural environments, analytical and numerical methods, analysis of ground and satellite measurements, spectral data processing. At the third stage, a developed metamaterial approach was used, the author's method of nonlinear evolution equations for wave processes in layered media (explained in a monograph on the topic published by the Institute of Physics, Bristol, UK, 2022); the developed analytical and numerical models were verified and used, including for electromagnetic waves in active nonlinear hyperbolic metamaterials in the infrared and terahertz ranges; very and ultra-low-frequency (DLF, ULF) electromagnetic waves and AHC in the system Earth - Earthly Plasma Environment; new nonlinear wave structures were found, a new phenomenon (threshold jump of the focusing area) and the synergistic effect of absorption of the next pulse in hyperbolic active nonlinear cylindrical field concentrator and flat-layered active medium, respectively. Product Description popup.authors Ivanyga Oksana I. Volkova Tetyana V. Hensitskyy Nazar R. Grytsai Asen V. Zaderko Olexander М. Zolotaryuk Yaroslav O. Kryvodubsky Valeriy N. Milinevsky Gennady P. Petryshchevskyy Serhiy S. Reshetnyk Volodymyr M. Fedorenko Alla K. popup.nrat_date 2023-01-25 Close