@Article{CiCP-27-569,
author = {Wu , Yu MaoChen , Ke WeiHu , JunZhou , HaijingLiu , Yang and Yuan , Lijun},
title = {The New Operator Marching Method on Calculating the Electromagnetic Scattered Fields from the Periodic Structures},
journal = {Communications in Computational Physics},
year = {2019},
volume = {27},
number = {2},
pages = {569--588},
abstract = {<p style="text-align: justify;">In this work, the operator marching methods based on the modified
Neumann-to-Dirichlet (NtD) map are developed to calculate the scattered fields from
the periodic structures, especially diffraction gratings with metallic material. For the
grating structures coated with the metallic material, the modified NtD map operator
marching scheme is numerically stable for calculating the electromagnetic scattered
fields. The modified NtD map operators are constructed by the integral equation
(IE) method in each homogeneous medium of the layered medium structures, and
avoid the blow up of the condition numbers from the challenging metallic material
with the complex refractive index. For the calculations of the scattered fields from
the diffraction grating structures, the modified NtD map operator marching method
takes advantage of the periodic structure features, and avoids the calculations of the
complicated quasi-periodic Green&#39;s function. Numerical results demonstrate that the
proposed method achieves high accuracy and low computational workload for the
scattered fields from both the dielectric and metallic diffraction grating structures.</p>},
issn = {1991-7120},
doi = {https://doi.org/10.4208/cicp.OA-2017-0228},
url = {http://global-sci.org/intro/article_detail/cicp/13459.html}
}