Flexible zero refractive index optical metamaterial with matched impedance

Seokho Yun; Lan Lin; Zhi Hao Jiang; Ding Ma; Zhiwen Liu; Douglas H. Werner; Theresa S. Mayer

doi:10.1117/12.930346

15 October 2012 Flexible zero refractive index optical metamaterial with matched impedance

Seokho Yun, Lan Lin, Zhi Hao Jiang, Ding Ma, Zhiwen Liu, Douglas H. Werner, Theresa S. Mayer

Proceedings Volume 8455, Metamaterials: Fundamentals and Applications V; 84551Q (2012) https://doi.org/10.1117/12.930346
Event: SPIE NanoScience + Engineering, 2012, San Diego, California, United States

Abstract

We demonstrate a flexible thin film zero refractive index optical metamaterial with matched impedance to free space and low absorption loss at 1.55 μm. The metallo-dielectric multilayer structure with fishnet geometry was optimized by a genetic algorithm. The fabrication process and characterization approach are described. The experiment results agree well with the theoretical predictions, showing an effective index of n_eff = 0.072 + 0.51i and an impedance of Z_eff/Z₀ = 1.009 – 0.021_i.

Citation Download Citation

Seokho Yun, Lan Lin, Zhi Hao Jiang, Ding Ma, Zhiwen Liu, Douglas H. Werner, and Theresa S. Mayer "Flexible zero refractive index optical metamaterial with matched impedance", Proc. SPIE 8455, Metamaterials: Fundamentals and Applications V, 84551Q (15 October 2012); https://doi.org/10.1117/12.930346

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