10 September 2010 Multilayer near-IR metallo-dielectric zero index metamaterials with matched impedance
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In this study, we report multilayer metallo-dielectric stacks that simultaneously possess a zero refractive index and an impedance match to free space in the near-IR. A genetic algorithm (GA) was used to optimize the screen geometries and dimensions of the zero index metamaterials (ZIMs) that consisted of alternating gold (Au) and polyimide films. Examples of three- and nine-layer ZIMs are shown. The fabrication procedure and characterization methods of the multilayer metallo-dielectric ZIMs are also described.
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Seokho Yun, Seokho Yun, Zhi Hao Jiang, Zhi Hao Jiang, Qian Xu, Qian Xu, Jeremy A. Bossard, Jeremy A. Bossard, Douglas H. Werner, Douglas H. Werner, Zhiwen Liu, Zhiwen Liu, Theresa S. Mayer, Theresa S. Mayer, "Multilayer near-IR metallo-dielectric zero index metamaterials with matched impedance", Proc. SPIE 7754, Metamaterials: Fundamentals and Applications III, 77540G (10 September 2010); doi: 10.1117/12.863601; https://doi.org/10.1117/12.863601

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