If your cabinet doors are warped, you probably have a lost cause on your hands. The internet may offer you many ideas for how to fix those warped doors, including laying a heavy object on top of them.

Twisted moiré photonic crystals—an advanced type of optical metamaterial—have shown enormous potential in the race to engineer smaller, more capable and more powerful optical systems.

An on-chip twisted moiré photonic crystal sensor that uses MEMS technology to actively control the twist and distance between layers in real time,. Twisted moiré photonic crystals — an ...