Slab

A type of waveguide, that can be used e.g. to construct Stacks, BlochStacks and Cavities. Slab is a 1D slab waveguide consisting of an arbitrary number of layers. Lateral boundary conditions default to electric walls, but can be set at will on a slab-by-slab basis or globally.

Constructor:

• Slab(Expression)

Member functions: same as Waveguide in addition to

• width(): returns the width along x of the slab.
• set_lower_wall(SlabWall): sets the wall at x=0 for this slab. Possible choices for SlabWall include slab_E_wall and slab_H_wall.
• set_upper_wall(SlabWall): sets the wall at x=slab.width() for this slab. Possible choices for SlabWall include slab_E_wall and slab_H_wall.

See section Waveguide.

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