Optical Dispersion Models for Time-Domain Modeling of Metal-Dielectric Nanostructures

被引：59

作者：

Prokopeva, Ludmila J. ^{[2
]}

Borneman, Joshua D. ^{[1
]}

Kildishev, Alexander V. ^{[1
]}

机构：

[1] Purdue Univ, Birck Nanotechnol Ctr, Sch Elect & Comp Engn, W Lafayette, IN 47907 USA

[2] Russian Acad Sci, Inst Computat Technol, Novosibirsk, Russia

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2011年 / 47卷 / 05期

关键词：

Critical points; dispersive media; drude; FDTD methods; FETD; FVTD; Lorentz; Pade approximant; Sellmeier; RECURSIVE CONVOLUTION; FDTD; MEDIA;

D O I：

10.1109/TMAG.2010.2091676

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：

We discuss second-order complex Pade approximants which give a systematic approach to time-domain modeling of dispersive dielectric functions. These approximants, which also reduce to the classical Drude, Lorentz, Sellmeier, critical points and other models upon appropriate truncation, are used to compare frequency domain (FD) versus time-domain (TD) simulations of local optical responses and the transmission-reflection spectra for a plasmonic nanostructure. A comparison is also made using auxiliary differential equations (ADE), and second order recursive convolution (RC) formulations embedded in finite-difference, finite-volume, and finite-element time-domain solvers.

引用

页码：1150 / 1153

页数：4

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