Title :
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
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;
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
DOI :
10.1109/ICEAA.2007.4387381
