FDTD method for computing the off-plane band structure in a two-dimensional photonic crystal consisting of nearly free-electron metals

Sanshui Xiao*, Sailing He

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

An FDTD numerical method for computing the off-plane band structure of a two-dimensional photonic crystal consisting of nearly free-electron metals is presented. The method requires only a two-dimensional discretization mesh for a given off-plane wave number kz although the off-plane propagation is a three-dimensional problem. The off-plane band structures of a square lattice of metallic rods with the high-frequency metallic model in the air are studied, and a complete band gap for some nonzero off-plane wave number kz is founded.

Original languageEnglish
JournalPhysica B: Condensed Matter
Volume324
Issue number1-4
Pages (from-to)403-408
ISSN0921-4526
DOIs
Publication statusPublished - Nov 2002
Externally publishedYes

Keywords

  • Band structure
  • FDTD method
  • Free-electron metals
  • Two-dimensional photonic crystal

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