# StablePML

Specifies a 'stable' PML along a single dimension. This PML handles possibly divergent simulations better, but at the expense of more layers.

# Extrude Structures

extrude_structures: Extend structures that intersect the absorbing boundary into the absorbing layer before applying the stable PML.

  • Type: boolean
  • Default: True

# Number of Layers

num_layers: Number of layers of 'stable' PML.

Type: integer

  • Unit: unitless
  • Constraint: greater than or equal to 1
  • Default: 40

# Stable PML Parameters

parameters: 'Stable' parameters of the complex frequency-shifted absorption poles.

See: PMLParams

Default:

  • sigma_order = 3
  • sigma_min = 0.0
  • sigma_max = 1.0
  • kappa_order = 3
  • kappa_min = 1.0
  • kappa_max = 5.0
  • alpha_order = 1
  • alpha_min = 0.0
  • alpha_max = 0.9

← AbsorberParams →