An Efficient High-Order PML for LOD-FDTD Scheme

An efficient high order perfectly matched layer (HO-PML) for locally one-dimensional finite-difference time-domain (LOD-FDTD) scheme is proposed. Based on the bilinear transform (BT) method and auxiliary differential equations (ADE) method, HO-PML truncated boundary is introduced into the LOD-FDTD algorithm. One numerical example is given to verify that HO-PML for LOD-FDTD method can maintain the same stability and shows better absorbing performance than the original complex-frequency shifted (CFS) PML.