Rengevych O. Physical modeling of chemo-biological sensors on the basis of surface plasmon resonance.

The thesis deals with investigation of interaction of light with a flat metal-insulator interface and microrelief metal-semiconductor interface in the surface plasmon resonance (SPR) excitation mode. The main objective of the work was the development of physical models for adequate estimation of SPR-sensor parameters and accuracy of their determination. The basic model systems that are considered in the thesis allow for presence of an adsorbed layer, the effect of morphology (roughness) of adsorbed layer and active plasmon-carrying coating, refractive index of an immersion ambience, etc. The uniqueness of film parameters determination from the SPR curves is investigated. A procedure is advanced for calculation of several parameters of thin films from the measured SPR angle spectra in various immersion ambiences. Variations of the effective optical parameters of thin gold and calyxarene films at adsorption of organic solvents from saturated vapor are studied.