首页> 中文期刊> 《中国物理快报:英文版》 >Guided Modes in a Two-Dimensional Photonic Crystal Waveguide Consisting of Nearly-Free-Electron Metals

Guided Modes in a Two-Dimensional Photonic Crystal Waveguide Consisting of Nearly-Free-Electron Metals

         

摘要

Guided modes in a two-dimensional photonic crystal consisting of nearly-free-electron metals are considered. To avoid time-consuming convolution, modified time-stepping formulae are used in a finite-difference time-domain approach. The guided modes in the metallic photonic crystal waveguide are related to those in a conventional metallic waveguide. A cut-off frequency exists, and consequently a mode gap at low frequencies exists in the photonic crystal metallic waveguide.

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