1701 電磁メタマテリアルによる光閉じ込め構造のFDTDシミュレーション(OS17.フォトニック・フォノニック構造の設計とシミュレーション(1),オーガナイズドセッション)

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  • 1701 An FDTD Analysis of Light Confined Structure by Electromagnetic Metamaterials

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Using the two dimensional Finite Difference Time Domain method, we demonstrate a light-confinement phenomenon by a structure composed of a negative-refractive-indexed (NRI) material. The structure, consisting of triangular lattice of mediums with a NRI and a normal material, is designed to confine an incident light by peculiar refractions at the materials boundaries. To model realistically the NRI material, we introduce the Drude-Lorentz model for the dielectric response at optical frequencies. The effects of dielectric loss in the NRI medium on the confinement efficiency of the proposed structure is reported.

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