Simulation of metallic nano-structures by using a hybrid FDTD-ADI subgridding method

Author

Pernice, W.H.P. ; Payne, F.P. ; Gallagher, D.F.G.

Author_Institution

Oxford Univ., Oxford

fYear

2007

fDate

17-21 Sept. 2007

Firstpage

633

Lastpage

636

Abstract

We present a novel hybrid mesh refinement method for the simulation of dispersive metallic structures. Combining the FDTD method and an unconditionally stable ADI-FDTD scheme preserves the Courant limit while providing higher spatial resolution in refined areas. The subgridding method is developed for the simulation of dispersive metals using an auxiliary differential equation approach. The algorithm performs roughly two times faster than a conventional mesh refinement method.

Keywords

antenna accessories; finite difference time-domain analysis; nanostructured materials; Courant limit; alternating direction implicit method; auxiliary differential equation; dispersive metallic structure; finite difference time-domain analysis; hybrid FDTD-ADI subgridding method; hybrid mesh refinement method; metallic nano-structures; Dielectric materials; Differential equations; Dispersion; Finite difference methods; Inorganic materials; Nanoscale devices; Optical scattering; Polarization; Spatial resolution; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetics in Advanced Applications, 2007. ICEAA 2007. International Conference on

Conference_Location

Torino

Print_ISBN

978-1-4244-0767-5

Electronic_ISBN

978-1-4244-0767-5

Type

conf

DOI

10.1109/ICEAA.2007.4387381

Filename

4387381