Title :
FDTD validations of a nonlinear PML scheme
Author :
Chen, Zhizhang ; Xu, Jian ; Ma, Jian-Guo
Author_Institution :
Dept. of Electr. & Comput. Eng., Dalhousie Univ., Halifax, NS, Canada
fDate :
3/1/1999 12:00:00 AM
Abstract :
The finite-difference time-domain (FDTD) method has been applied to nonlinear electromagnetic problems such as nonlinear soliton propagation. However, for practical simulations of open nonlinear media, nonlinear absorbing boundary conditions are needed to truncate the computation domains while not affecting the nonlinear field propagation. In this work, based on the Berenger´s PML, we present a nonlinear PML (nPML) for the absorption of nonlinear waves and its validations with the Yee´s FDTD scheme. Numerical examples are given and absorption of better than -50 dB has been obtained
Keywords :
electromagnetic wave absorption; electromagnetic wave propagation; finite difference time-domain analysis; Berenger PML; FDTD validations; finite-difference time-domain method; nonlinear PML scheme; nonlinear absorbing boundary conditions; nonlinear electromagnetic problems; nonlinear wave absorption; open nonlinear media; perfectly matched layer; Absorption; Boundary conditions; Computational modeling; Electromagnetic propagation; Electromagnetic propagation in absorbing media; Electromagnetic scattering; Finite difference methods; Permittivity; Polarization; Time domain analysis;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
