DocumentCode :
1499844
Title :
A Rational-Fraction Dispersion Model for Efficient Simulation of Dispersive Material in FDTD Method
Author :
Han, Lin ; Zhou, Dong ; Li, Kang ; Li, Xun ; Huang, Wei-Ping
Author_Institution :
Dept. of Electr. & Comput. Eng., McMaster Univ., Hamilton, ON, Canada
Volume :
30
Issue :
13
fYear :
2012
fDate :
7/1/2012 12:00:00 AM
Firstpage :
2216
Lastpage :
2225
Abstract :
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.
Keywords :
dispersive media; finite difference time-domain analysis; nanoparticles; optical materials; parameter estimation; permittivity; FDTD; arbitrary linear dispersive media; dispersive material; finite-difference time-domain method; nanoparticles; parameter estimation; rational-fraction dispersion model; relative permittivity; Computational modeling; Dispersion; Equations; Finite difference methods; Materials; Mathematical model; Time domain analysis; Dispersion; finite-difference method; nanoparticles; time-domain modeling;
fLanguage :
English
Journal_Title :
Lightwave Technology, Journal of
Publisher :
ieee
ISSN :
0733-8724
Type :
jour
DOI :
10.1109/JLT.2012.2195476
Filename :
6187666
Link To Document :
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