不对称金属包覆左手材料波导的导模
摘要
We investigate guided modes in the asymmetric waveguide structure with a left-handed material (LHM) layer surrounded by air and metal. A graphical method is proposed to determine the guided modes. New properties of the oscillating and surface guided modes, such as absence of the fundamental mode, coexistence of the oscillating and surface guided modes, fast attenuation of the surface guided modes, and mode degeneracy, are analyzed in detail. We also investigate dispersive characteristics of the metal-LHMair optical waveguide. The propagation constant increases with decreasing slab thickness for the first-order oscillating mode, which is different from that in traditional metal-cladding waveguides.
引用本文（GB/T 7714）
Ying He, Xia Zhang, Yanfang Yang, 等. 不对称金属包覆左手材料波导的导模[J]. Chinese Optics Letters, 2011.
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