Caption Top image: Schematics illustrating spin transport in CVD graphene on Si/SiO2 substrate, with ferromagnetic contacts (Co/TiO2) for spin injection and detection. Bottom image: An optical ...

Then, they coated them with either SiO2, ZrO2, or SiO2-ZrO2 using the ... generate plasma and sputter material from a target onto a substrate. In the process described in this study, argon gas ...

Then, they started the coating process by initially dipping pre-cleaned microscope glass slide substrates in a dip coater with SiO2-TiO2, then putting them to dry and in a heat treatment.

The result is a pattern of silicon nitride pillars sitting on top of the silicon dioxide substrate - a metalens. McClung and co show how this technique can create lenses 6mm in diameter that ...