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Integrated Optics

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

[+] Author Affiliations
Shuai Feng

Minzu University of China, School of Science, Beijing 100081, China

Yiquan Wang

Minzu University of China, School of Science, Beijing 100081, China

Opt. Eng. 51(11), 114601 (Nov 01, 2012). doi:10.1117/1.OE.51.11.114601
History: Received August 6, 2012; Revised September 17, 2012; Accepted September 25, 2012
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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.

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© 2012 Society of Photo-Optical Instrumentation Engineers

Citation

Shuai Feng and Yiquan Wang
"Unidirectional light propagation characteristics through two-dimensional metallic photonic crystal composite structures", Opt. Eng. 51(11), 114601 (Nov 01, 2012). ; http://dx.doi.org/10.1117/1.OE.51.11.114601


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