首页> 外文会议>IEEE International Symposium on Antennas and Propagation;USNC/URSI National Radio Science Meeting >A Hybrid Sub-Gridding FDTD Method Analyzing Wave Propagation in Dispersive Metallic Gratings
【24h】

A Hybrid Sub-Gridding FDTD Method Analyzing Wave Propagation in Dispersive Metallic Gratings

机译:分析色散光栅中波传播的混合子网格FDTD方法

获取原文

摘要

A sub-gridding scheme that hybridizes the conventional finite-difference time-domain (FDTD) method and the unconditionally stable locally one-dimensional (LOD) FDTD method is proposed for the extraordinary optical transmission analysis of periodic metallic gratings. FDTD is applied to global coarse-grid regions while LOD-FDTD to local fine-grid regions. The dispersion of the metal, caused by evanescent waves propagating along the interface between the metal and dielectric materials in the visible and near infrared regions, is expressed by the Drude model and solved with a generalized auxiliary differential equation technique. A numerical example is provided to show accuracy and efficiency of the proposed method.
机译:提出了一种将传统的时域有限差分时域(FDTD)方法与无条件稳定的局部一维(LOD)FDTD方法相混合的子网格方案,用于周期性金属光栅的非常规光学透射分析。 FDTD适用于全球粗网格区域,而LOD-FDTD适用于本地精细网格区域。金属的弥散是由Drude模型表示的,它是由沿可见光和近红外区域中的金属和介电材料之间的界面传播的e逝波引起的,并由广义辅助微分方程技术求解。数值算例表明了该方法的准确性和有效性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号