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Original Articles

Negative refraction in two-dimensional photonic crystals

, &
Pages 1531-1539 | Received 15 Dec 2005, Accepted 15 Jan 2006, Published online: 19 Aug 2006
 

Abstract

A two-dimensional, square-lattice photonic crystal model possessing analytical solutions is investigated to ascertain the requirements for negative refraction to occur. The refraction properties are presented for both polarizations assuming in-plane propagation and phase matching conditions across a surface perpendicular to the ΓM-direction of the crystal. It is shown that the most isotropic and highest effective refractive index is obtained near the maximum of the lowest band for a crystal with a high refractive index contrast between its constituent materials.

Acknowledgments

This work was carried out as part of the Electronic Systems Domain of the MoD Research Programme.

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