Ion-assisted stimulating deposition of Pt nanoparticles in SiO2 and optical properties

The present study is aimed to the formation and optical study of new types of nanomaterial based on Pt nanoparticles in a SiO 2 matrix. An original technique of ion-assisted stimulating co-deposition of metal and dielectric in vacuum was used. It was shown by electron microscopy and microdiffraction methods that as a result of deposition Pt nanoparticles in SiO 2 were synthesized. The optical absorption of the synthesized composite nanosystem was measured. It was also found by the Z-scan method that when laser probing of the sample with nanosecond pulses at a wavelength of 1064 nm a positive nonlinear optical absorption was recorded, which characterized by a coefficient of 2.9·10 –7 m/W.