Subpixel smoothing finite-difference time-domain method for material interface between dielectric and dispersive media

Research output: Contribution to journalArticle

8 Scopus citations

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.

Original languageEnglish (US)
Pages (from-to)4802-4804
Number of pages3
JournalOptics letters
Volume37
Issue number22
DOIs
StatePublished - Nov 15 2012

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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