Learning Forum

[Greg Baethge]

The non-uniform mesh generation does not necessarily produce meshes that automatically match the periodicity of the physical structure. In some cases, such as high Q photonic crystal micro-cavities, using a mesh that has the same periodicity as the physical structure being simulated is better for numerical accuracy. In this case, a mesh override region can be used to ensure that a/Δ=N

where a is the period, Δ is the mesh cell size and N is an integer.

To insert mesh override regions, select the Mesh option of the Simulation button.