Subpixel smoothing finite-difference time-domain method for material interface between dielectric and dispersive media.
Opt Lett
; 37(22): 4802-4, 2012 Nov 15.
Article
em En
| MEDLINE
| ID: mdl-23164919
ABSTRACT
In this Letter, we have shown that the subpixel smoothing technique that eliminates the staircasing error in the finite-difference time-domain method can be extended to material interface between dielectric and dispersive media by local coordinate rotation. First, we show our method is equivalent to the subpixel smoothing method for dielectric interface, then we extend it to a more general case where dispersive/dielectric interface is present. Finally, we provide a numerical example on a scattering problem to demonstrate that we were able to significantly improve the accuracy.
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Bases de dados:
MEDLINE
Idioma:
En
Revista:
Opt Lett
Ano de publicação:
2012
Tipo de documento:
Article
País de afiliação:
Estados Unidos