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Angle-resolved transmission measurements through anisotropic two-dimensional plasmonic crystals

机译:各向异性二维等离激元晶体的角分辨透射率测量

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摘要

We report on high-accuracy angle-resolved optical transmission measurements through anisotropic 2D plas-nmonic crystals made of gold films with large-area rectangular arrays of nanoscale square holes, deposited onnGaAs substrates. The measurements reveal the dispersion relations of air–gold and gold–GaAs surface plas-nmon polaritons. The crystal anisotropy induces a separation between plasmonic modes propagating in dif-nferent directions. Their symmetry and dispersion properties are discussed. © 2008 Optical Society ofnAmerica
机译:我们报告了通过各向异性二维二维等离子晶体的高精度角度分辨光学传输测量,该二维二维等离子晶体由金膜制成,具有大面积矩形阵列的纳米级方孔,沉积在nGaAs衬底上。这些测量揭示了空气-金和金-GaAs表面等离子-极化子的色散关系。晶体各向异性引起沿不同方向传播的等离子体模式之间的分离。讨论了它们的对称性和分散性。 ©2008美国眼镜学会

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