Frequency-dependent finite-difference time-domain method based on iterated Crank-Nicolson scheme

被引：0

作者：

Shibayama, Jun ^{[1
]}

Kawahara, Akira ^{[1
]}

Yamauchi, Junji ^{[1
]}

Nakano, Hisamatsu ^{[1
]}

机构：

[1] Hosei Univ, Fac Sci & Engn, Tokyo, Japan

来源：

ELECTRONICS LETTERS | 2023年 / 59卷 / 01期

关键词：

finite difference methods; plasmonics; time-domain analysis; FDTD METHOD;

D O I：

10.1049/ell2.12695

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The finite-difference time-domain (FDTD) method based on the iterated Crank-Nicolson (ICN) scheme is extended to a frequency-dependent version. The Drude model is used to express a metal dispersion, which is incorporated into the iterated Crank-Nicolson formulation with the trapezoidal recursive convolution technique. The validity of the present finite-difference time-domain method with convolutional perfectly matched layers is discussed through the analysis of a metal-insulator-metal plasmonic waveguide. Numerical results obtained from a two-iteration technique are found to agree well with those from the traditional explicit finite-difference time-domain method.

引用

页数：3

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