Methods and Results of Research on the Microwave Response of Material Media in Electrodynamic Structures

Work number - P 9 FILED

Presented O.Ya. Usykov Institute for Radiophysics and Electronics of National Academy of Sciences of Ukraine (O.Ya. Usykov IRE NASU)

Authors:
1. AVERKOV Yuriy Olegovich – Doctor of Physics and Mathematics Sciences, Head of the Department at the O.Ya. Usykov Institute for Radiophysics and Electronics of NAS of Ukraine
2. BARANNYK Oleksandr Anatoliyovych – Doctor of Phys. and Math. Sciences, Senior Researcher at the O.Ya. Usykov Institute for Radiophysics and Electronics of NAS of Ukraine;
3. GUBIN Oleksiy Ivanovych – Candidate of Physical and Mathematical Sciences, Senior Researcher at the O.Ya. Usykov Institute for Radiophysics and Electronics of NAS of Ukraine;
4. LAVRYNOVYCH Oleksandr Antonovych – Candidate of Physical and Mathematical Sciences, Senior Researcher at the O.Ya. Usykov Institute for Radiophysics and Electronics of NAS of Ukraine;
5. PROKOPENKO Yuriy Volodymyrovych – Doctor of Physical and Mathematical Sciences, Leading Researcher at the O.Ya. Usykov Institute for Radiophysics and Electronics of NAS of Ukraine;
6. CHERPAK Mykola Tymofiyovych – Doctor of Physical and Mathematical Sciences, Chief Researcher at the O.Ya. Usykov Institute for Radiophysics and Electronics of NAS of Ukraine;
7. SHKLOVSKIY Valeriy Oleksandrovych - Doctor of Physical and Mathematical Sciences, Acting Head of the Department of V.N. Karazin Kharkiv National University;
8. YAKOVENKO Volodymyr Mefodiyovych - Doctor of Physical and Mathematical Sciences, Academician of the National Academy of Sciences, Chief Researcher at the O.Ya. Usykov Institute for Radiophysics and Electronics of NAS of Ukraine

Through theoretical and experimental researches based on the idea of ​​the microwave (MW) response of material media (solid-state plasma, superconductors, metamaterials, graphene, biochemical fluids, maser crystals), which is of great importance for the development of modern MW physics and techniques, new knowledge about the fundamental properties of these media was obtained.

New chapters in MW physics were created: 1) electrodynamics of interaction of charged particle flows with electromagnetic fields that they excite in solid-state structures, 2) electrodynamics of high-Q solid-state resonators, 3) physics of fluxon metamaterials. Innovative MW methods for studying material media were developed based on new electrodynamic structures.

These include the whispering gallery mode (WGM) resonator with various shapes, the method of plane wave reflection at grazing angles of incidence, and WGM resonator dielectrometry for small volumes (<1μl) of biochemical liquids.

New features and effects were revealed (in particular, anomalous temperature dependence of the real part of the conductivity of superconducting pnictides and chalcogenides with Fe ions, anomalous feature of the MW response of the FeSeTe chalcogenide, an avalanche-like transition of the HTS film-based MW coplanar transmission line to a strongly dissipative state, bistability in the maser system, self-oscillations in the structure of the WGM resonator with electron beams).

This research has laid the scientific groundwork for the development of new MW devices, several of which have been patented.

Number of publications: 1 individual monograph, 7 collective monographs, 255 articles in journals classified under category "A" (including 115 in foreign journals) and 3 articles in journals classified under category "B". The total number of citations to authors' publications/h-index of the work according to various databases are as follows: Web of Science 2103/26, Scopus 2754/29, Google Scholar 3530/31. A

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