Metagrating Construction – Discussion at Examples

Metagratings, which are usually composed of nanopillars with spatially varying parameters, are shown to have superior performance in comparison to traditional gratings. Such gratings can be set up in VirtualLab Fusion with the help of the pillar medium and, in this example, we show how to properly configure the metagrating setups. That includes the configuration of media, materials, the pillar geometry, and the spatial distribution of the pillars. Additional hints on the setting of the number of spatial frequencies are also given.