surface plasmon resonance

In this work, the field distribution in structures such as a gold grating, a graphene layer, and a silicon substrate was studied. The conditions for maximum electromagnetic field distribution (absorption) by this structure to use in photonics and electronics devices were established. The magnitude of the electromagnetic field of a gold diffraction grating with a graphene layer increases with decreasing slit width. At the same time, an increase in the period leads to small changes in the electromagnetic field distribution.

The theoretical research and experimental verification of the surface plasmon resonance prism based sensors element have been carried out. This research includes the simulation of optical characteristics, optimization of geometric parameters and the production and research of an experimental low cost prototype with simple construction. The influence of the thickness change of the silver and chromium layers on the position of the reflectance minimum, which corresponds to the surface plasmon resonance, has been investigated.