# ABCBoundary

Specifies a one-way wave equation absorbing boundary condition (ABC) along a single dimension.

ABCBoundary implements the absorbing boundary conditions described in John B. Schneider's "Understanding the Finite-Difference Time-Domain Method", Chapter 6.

# Permittivity

permittivity: Effective permittivity for determining the propagation constant.

Type: floating-point number

  • Unit: unitless
  • Constraint: greater than or equal to 1.0
  • Default: None (automatically inferred from the medium at the domain boundary and the central frequency of the source)

# Conductivity

conductivity: Effective conductivity for determining the propagation constant.

Type: floating-point number

  • Unit: S/μm
  • Constraint: greater than or equal to 0
  • Default: None (automatically inferred from the medium at the domain boundary and the central frequency of the source)

← Absorber →