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Information × Registration Number 0222U000459, 0121U111936 , R & D reports Title The study of ways to create nonreciprocal controllable optical metasurfaces and their properties popup.stage_title Head Prosvirnin Serhii L., д.ф.-м.н. Registration Date 10-01-2022 Organization Radio Astronomical Institute of the National Academy of Sciences of Ukraine popup.description2 Object of research - multilayer metasurfaces with a complex structure of the periodic cell, which may include nonlinear and nonreciprocal elements. The subject of research is the resonant modes and the scattering field of the metasurface. The purpose of the work - the development of physical foundations for the development of non-reciprocal compact photonics devices based on non-reciprocal metasurfaces, the characteristics of which can be controlled at the request of the user Research method - numerical methods for solving diffraction problems on periodic structures. Results of work. The conditions for the exciting of resonance in a multilayer metasurface consisting of layers with different composition of a periodic cell and the influence of the asymmetry of the excitation field, which occurs due to the oblique incidence of a plane electromagnetic wave on it, are studied. The possibility of forming a non-mirror reflection from such a metasurface in the frequency band is shown. For the first time, the possibility of developing a collimator with a bistable level of reflection based on a reflective metasurface with silicon disks in the conditions of their nonlinear interaction with light was shown. The dependences on the configuration of the periodic cell and the external electromagnetic field of the resonant properties of the metasurface formed by crossed lattices of bars made of nonreciprocal material are studied. The possibility of constructing a mechanically and electrodynamically controlled filter based on such metasurface is shown.   Product Description popup.authors Vanin Borys Viktorovych Kochetova Ludmila Anatoliyivna Maslovskiy Olexander A. Plakhtii Vadym A. Khardikov Vyacheslav V Yachin Volodymyr Vasylovych popup.nrat_date 2022-03-09 Close