The plasmon splitting reflectance spectra on anodized titanium surface in the presence of Yb2O3 upconversion luminescence

In this paper, the plasmon resonance splitting on the anodized modified titanium has been studied. The plasmons absorption process in the permittivity functions spectra and reflectance spectra of p- and s-polarized light on the titanium oxide surface have been analyzed when the surface roughness parameters are changing. The surface roughness values were also estimated in this paper. Spectral features of the negative refractive index in the area of surface plasmon generation on the rough titanium-oxide film interface have been also presented in this paper. Surface roughness parameters are also determined. The upconversion luminescence enhancement of the ytterbium oxide on the rough titanium surface was observed in this work.