AbsorberParams

AbsorberParams (opens new window) defines the conductivity profile used by an Absorber boundary condition.

Sigma

sigma_order: Polynomial order for the absorber conductivity profile.

• Type: integer
• Constraint: greater than or equal to 0
• Default: 3

sigma_min: Minimum absorber conductivity.

• Type: floating-point number
• Unit: $2\epsilon_0 / \Delta t$
• Constraint: greater than or equal to 0
• Default: 0

sigma_max: Maximum absorber conductivity.

• Type: floating-point number
• Unit: $2\epsilon_0 / \Delta t$
• Constraint: greater than or equal to 0
• Default: 6.4