Double higher-order FEM modeling using an anisotropic conformal perfectly matched layer

We present a computationally efficient technique for termination of a computational domain in open-domain scattering simulations based on a double higher-order (higher order in geometry and field approximation) finite element method (DHO-FEM). The computational domain is surrounded by an anisotropic, locally-conformal perfectly matched layer (PML) utilizing higher order, continuously inhomogeneous, anisotropic material parameters.