Effect of joint alloying of magnesium fluoride film-forming material with CeF3 and EuF3 additives on optical and operational properties of coatings
The fact of removal of oxygen-containing impurities (MgO) in the magnesium fluoride film-forming material under the influence of additives on the basis of CeF3 - EuF3 system was established by XRD analysis and IR spectroscopy. Thin-film coatings obtained by thermal evaporation of MgF2, doped with CeF3 - EuF3 additives, reveal high mechanical durability and refractive index and scattering coefficient slightly changed compared with the standard specimen of MgF2.