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Information × Registration Number 0218U001131, 0117U001811 , R & D reports Title The non-stationary processes in the active micro- and nanostructures that contain plasmon and amplifying components. popup.stage_title Head Lytvynenko Leonid M., Registration Date 24-01-2018 Organization Institute of Radio Astronomy of Sciences of Ukraine popup.description2 Theoretical methods and calculation algorithms necessary for investigation of the interaction of unstable pulse signals with resonant metasurfaces with active substance inclusions are developed. It was shown that fully-dielectric metamaterials compared with metal analog can support a resonant trapped-mode regime with unprecedented quality factor and demonstrated a low level of losses. The algorithm for solving diffraction problems on metasurfaces, which is based on the pseudo-spectral time-domain method, was complemented the corresponding models of the active material, specifically, on the basis of the Maxwell-Bloch equations. The possibility of amplification of light during its interaction with active resonant metasurfaces have been theoretically proved and the nonstationary effects of the formation of scattered light by such interaction has been investigated. Product Description popup.authors Литвиненко Леонід Миколайович Младьонов Павло Леонідович Просвірнін Сергій Леонідович Сидорчук Наталія Віленовна Хардіков В'ячеслав Володимирович Ячин Володимир Васильевич popup.nrat_date 2020-04-02 Close