Unidirectional light propagation characteristics through two-dimensional metallic photonic crystal composite structures

Shuai Feng; Yiquan Wang

doi:10.1117/1.OE.51.11.114601

1 November 2012 Unidirectional light propagation characteristics through two-dimensional metallic photonic crystal composite structures

Shuai Feng, Yiquan Wang

Author Affiliations +

Optical Engineering, Vol. 51, Issue 11, 114601 (November 2012). https://doi.org/10.1117/1.OE.51.11.114601

Abstract

Unidirectional light transmission through composite structures, consisting of a square lattice of square metals with different sizes, is studied by the finite-difference time-domain method. Through adding two metallic slices into the lateral boundaries of the composite structures, the lateral light energy leak is avoided and unidirectional light propagations towards two opposite directions are obtained within two separate frequency regions based on the directional band gaps. Through the design of arranging metallic rods at the interface of two photonic crystals, the unidirectional light propagation, based on the different refractive and reflective behaviors at the frequencies within the pass bands, is also obtained.

Citation Download Citation

Shuai Feng and Yiquan Wang "Unidirectional light propagation characteristics through two-dimensional metallic photonic crystal composite structures," Optical Engineering 51(11), 114601 (1 November 2012). https://doi.org/10.1117/1.OE.51.11.114601

Published: 1 November 2012

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