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Information × Registration Number 0223U000707, 0122U002101 , R & D reports Title All-dielectric metasurfaces with polarization-degenerate spectrum for high-precision detection of chiral substances popup.stage_title Head Polevoi Sergii Yu., Кандидат фізико-математичних наук Registration Date 19-01-2023 Organization O. Ya. Usikov Institute for Radiophysics and Electronics NAS of Ukraine popup.description2 The object of research is the electromagnetic properties of dielectric metasurfaces with a polarization-degenerate spectrum of eigenmodes. The purpose of the work is to develop the design of a dielectric metasurface that has a polarization-degenerate spectrum of eigenmodes. Further application of the developed metasurface to increase the efficiency of detection of chiral compounds. As a result of the implementation of the first stage of the project: 1) The theory of the phenomenon of polarization degeneracy in periodic nanostructures is developed. Analytical models were obtained that showed the fundamental possibility of broadband polarization degeneracy of waveguides and surface waves on dielectric and plasmonic two-dimensional structures, respectively. 2) Numerical models and software codes were developed, which were used to calculate and optimize designs of dielectric metasurface with polarization-degenerate spectrum, as well as their comprehensive study, namely: - Maps of the dependence of the geometric parameters of the metasurface on the required values of the degree of polarization degeneracy and localization, which allows you to immediately obtain the necessary design of the metasurface for a specific task. - Designs of dielectric metasurfaces having a polarization-degenerate spectrum with a certain level of degree of localization, from silicon, zinc oxide, titanium oxide in the visible and infrared ranges, ceramics in the microwave range and for various values of permittivity. - Design of silicon metasurface on quartz substrate and ceramic metasurface on Rogers substrate with polarization degenerate spectrum. Product Description popup.authors Nosatuk Sergiy Olehovich Ostryzhnyi Yevhenii M popup.nrat_date 2023-01-19 Close