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Nanostructured Systems, Metamaterials

Light Propagation in Liquid Crystal Infiltrated Two-Dimensional Photonic Crystal at a High-Order Photonic Band

, , &
Pages 67/[1291]-76/[1300] | Published online: 30 Jun 2011
 

Abstract

Light propagation into a photonic crystal infiltrated with a nematic liquid crystal is numerically investigated. At a high-order photonic band, photonic crystals generally exhibit interesting characteristics such as a negative refraction and a superprism effect. Our numerical results show that the sign of an effective refractive index of the tunable photonic crystal can be controlled at a certain frequency by changing molecular orientation. Furthermore, using a combination of positive and negative index photonic crystals, a light could be redirected 90° without a waveguide structure.

Acknowledgment

This work was partially supported by the Marubun Research Promotion Foundation.

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