Why is it preferable to use symmetry whenever possible?

Date	Category
2023-12-15 16:18:40	Symmetry

In many Tidy3D simulations, the application of field symmetries can markedly decrease computational time and FlexCredit cost, potentially achieving reductions by factors of 1/2, 1/4, or even 1/8. Therefore, we prefer to use symmetry whenever applicable. In addition, symmetry effectively filters out unwanted light polarizations or modes.

However, it is important to set up the symmetry correctly to avoid getting incorrect results. For a more extensive discussion on symmetry, please visit the dedicated tutorial.