Plasmon Resonance Changes in Thin Gold Film by Hydrogen Treatment

The influence of hydrogen treatment of a 50 nm thick gold film deposited on a glass on properties of the film is studied. It was established that proton fluxes with a density higher than 8.68□10
¹⁴
1/(cm
²
□s) destroyed the film and changed it plasmonic properties. It was also found that the flow of protons to the surface of the gold film with a much smaller density of 8.68□10
¹²
1/(cm
²
□s) significantly changes the optical properties. The resonance curve of the plasmon resonance shifts towards larger angles by 1.33° after hydrogen treatment. The amplitude of the resonant curve of the SPR does not change.