A Rational-Fraction Dispersion Model for Efficient Simulation of Dispersive Material in FDTD Method

被引：19
|
作者：
Han, Lin [1 ]
Zhou, Dong
Li, Kang
Li, Xun [1 ,2 ]
Huang, Wei-Ping [3 ,4 ,5 ,6 ]
机构：
[1] McMaster Univ, Dept Elect & Comp Engn, Hamilton, ON L8S 4L8, Canada
[2] Wuhan Natl Lab Optoelect, Wuhan 430074, Peoples R China
[3] Univ Waterloo, Waterloo, ON N2L 3G1, Canada
[4] Nortel, Quebec City, PQ, Canada
[5] Nippon Telegraph & Tel Corp, Kyoto, Japan
[6] MIT, Electromagnet Acad, Cambridge, MA 02139 USA
来源：
JOURNAL OF LIGHTWAVE TECHNOLOGY | 2012年 / 30卷 / 13期
基金：
加拿大自然科学与工程研究理事会;
关键词：
Dispersion; finite-difference method; nanoparticles; time-domain modeling; TIME-DOMAIN METHOD; RECURSIVE CONVOLUTION; OPTICAL-PROPERTIES; MEDIA; IMPLEMENTATION; FILMS; GOLD; ARRAYS; SILVER;
D O I：
10.1109/JLT.2012.2195476
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：
A novel rational-fraction dispersion model is proposed for simulation of optical properties of arbitrary linear dispersive media over a wide wavelength range. A generally applicable method is proposed for estimating the parameters of this model. It is demonstrated that the rational-fraction dispersion model can fit the relative permittivity data of a material accurately and efficiently in a wide wavelength range. The new model is implemented in the finite-difference time-domain method and is applied as a powerful and computationally efficient tool for simulating nano-particles of dispersive materials in a wide wavelength range of light.
引用
收藏
页码：2216 / 2225
页数：10
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