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Information × Registration Number 0218U001134, 0117U002804 , R & D reports Title Theoretical and experimental researches of resonant diffraction effects on micro- and the nanostructured surfaces in the submillimeter range of radio waves and determination of physical descriptions of such surfaces. Stage 3."Investigation of nonlinear effects that can occur in materials under. the action of intensive radiation. Development of methods for studying plasmon structures and metamaterials in the nonlinear regime of their functioning. Development of a method for measuring the complex dielectric permittivity of dielectric films." . popup.stage_title Head Lytvynenko Leonid, Registration Date 24-01-2018 Organization Institute of Radio Astronomy of Sciences of Ukraine popup.description2 Theoretical studies of the diffraction of electromagnetic radiation on a periodic surface of a metal coated with a thin dielectric film are performed. Analytical dependences describing the influence of the optical parameters of the film and its thickness on the main parameters of the plasmon-polariton resonance-its width and the position of the maximum of specular reflection-are obtained. It is found that the thickness of the film and the real part of its dielectric constant exert the greatest influence on these parameters of resonance. The obtained results can be used in the development of methods for measuring the optical characteristics of dielectric films, in particular, in the millimeter and terahertz wavelength ranges. The results of the development of modern theoretical models and also the numerical methods developed on the basis of these models for studying the resonance properties of plasmon structures and metamaterials in the nonlinear regime of their functioning are presented. Product Description popup.authors Гавриков В.К. ишенко В.В. Каменев Ю.Ю. Литвиненко Л.М. Младьонов П.Л. Просвірнін С.Л. Сидорчук Н.В. Хардіков В.В. Ячин В.В. popup.nrat_date 2020-04-02 Close