How do I simulate periodic structures in Tidy3D?

Date	Category
2023-12-15 21:48:06	Boundary Conditions

You can use the tidy3d.Periodic or tidy3d.BlochBoundary conditions to simulate periodic structures. These boundary conditions allow users to obtain the response of large periodic structures by simulating only a unit cell. The tidy3d.BlochBoundary allows to simulate systems where light is injected at an angle. However, it is computationally more expensive, so use tidy3d.Periodic boundary to normal incidence.

See this notebook for more details on setting up boundary conditions.