Ovcharenko K. The electromagnetic waves diffraction on planar periodic nanostructures

The research object: the resonance effects of diffraction on planar doubly-periodic nanostructures consist of complex shape metal or dielectric elements. The purpose is development of an effective algorithm, and its application for performing of multiparametric computations of electrodynamic characteristics, analysis of physical features of the electromagnetic fields scattered by planar doubly-periodic metal dielectric and dielectric structures. Research methods: pseudo-spectral time domain method and transfer matrix method. New theoretical and practical results: an effective algorithm is developed for the solving the electromagnetic waves diffraction problem on planar periodic nanostructures; in near infrared region the "trapped mode" resonances are found out in periodic nanostructures with metal or dielectric elements in periodic sell; the condition of their forming and property are investigated; for the first time the high order "trapped mode" resonances in periodic metal dielectric structures of the infrared region. Application extent: the results are planned to be applied. Application field: radiophysics and electronics.