How do I specify mappings between scattering matrix elements?

Date	Category
2023-12-20 18:30:12	Scattering Matrix

You can specify mappings between scattering matrix elements that you want to be equal up to a multiplicative factor. You can define these as element_mappings in the tidy3d.plugins.smatrix.ComponentModeler.

“Indices” are defined as a tuple of (port_name: str, mode_index: int)

“Elements” are defined as a tuple of output and input indices, respectively.

The element mappings are therefore defined as a tuple of (element, element, value) where the first element is set by the value of the 2nd element times the supplied value.

See this tutorial for more details on computing the scattering matrix.