Antireflective Effects on a Soda-Lime Glass Induced by Ar+ Implantation

The results of optical and chemical investigations on the anti-reflective layers obtained by Ar⁺ implantation on a soda-lime fiat glass are presented and discussed. The antireflective effect is ascribed to the appearance of an interferential layer with a perturbed refractive index and a lower Na content than the bulk glass and can be optimized by choosing a suitable range of implantation energies and doses. Sodium depth profiles were measured with the ²³Na( p, α )²⁰ Ne nuclear resonance reaction and the results compared with the information provided by the specular reflectance curves.