Each geometry defined in the PSlab consists of several layers. They are assumed to be uniform along -axis and can have any number of objects defined in -plane.
Here and in any geometry objects both epsilon and mu can be defined either as a single isotropic values or as 3-element sequences with diagonal elements or permibility or permeability diagonal tensors.
The layer has the following methods:
In practice you should not call this method yourself. It is used when necessary in the simulation.
layer, width)whete layer is the layer object itself. This method is here to allow you the neat way of adding layers to geometry as