A new finite-difference time-domain method for photonic crystals consisting of nearly-free-electron metals

Sailing He*, Sanshui Xiao, Linfang Shen, Jiangping He, Jian Fu

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review


A finite-difference time-domain method is developed to treat a nearly-free-electron metal by rewriting the time-domain Maxwell's equations into three coupled partial differential equations for three vector functions. The method is used to calculate the band structures of two-dimensional metallic photonic crystals, and the numerical results are compared with those obtained by other methods. The new time-stepping formulae are also used to investigate the defect modes by calculating the transmission spectrum.

Original languageEnglish
JournalJournal of Physics A: Mathematical and General
Issue number45
Pages (from-to)9713-9721
Publication statusPublished - 16 Nov 2001
Externally publishedYes

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