The main goal of our research was to investigate the optical properties of nanocomposites, created by combining
titanium dioxide with noble metals. Our research was focused on silver Ag, which reveals strong plasmonic
effects in the visible spectrum, and rutile TiO2 - a commonly used semiconductor material that does not present
any significant optical properties in the mentioned range of electromagnetic waves. Our results show that when
coating is considered (i.e. the TiO2 particle is covered by an additional Ag layer) the position of the extinction
peak can be manipulated and shifted towards lower wavelengths. However, when the main TiO2 particle is
surrounded by small Ag spheres, such extinction peak occurs at a fixed wavelength only and cannot be adjusted.