Sosnova M. Resonance interaction of electromagnetic radiation with periodical- nonuniform plasmonic systems on the solids surface.

The thesis is devoted to the investigation of properties of plasmonic systems with different types of periodical modulation of permittivity in the conditions of resonant interaction of electromagnetic radiation with solid state surface. The properties of plasmonic systems with different types of periodical modulation of permittivity in the regime of resonant interaction of electromagnetic radiation with solid state surface have been studied. Such interactions lead to the resonant excitation of different types of eigen electromagnetic modes in the system (surface plasmon polaritons, local plasmons, and waveguide waves). The technology based on principles of holographic lithography has been elaborated for plasmonic systems formation. The transformation character of metal nanowires periodical system annealed isothermally was established. The possibility of formation of metal nanoparticles chain system with predicted parameters for effective transmission of electromagnetic energy was demonstrated. The interaction of different modes exciting in 1D array of metal nanowires was established. The influence of metal filling fraction on local plasmon and surface plasmon polariton modes excitation has been demonstrated. The optimal parameters of optochemical sensory systems based on attenuated total reflectance (ATR) scheme, diffraction gratings (DG) and 1D array metal nanowires were established for obtaining of maximal sensitivity. The design of optochemical sensor for detection of small concentration of impurity in gas environment or liquid has been elaborated. The enhancement of sensitivity of SPR-sensory system due to formation of anticorrelated reliefs of plasmon-carrying films was demonstrated experimentally.