Optimal arrangement of meta-atoms composing metamaterials

Yi-Chen Chuang; Richard Dudley; Michael A. Fiddy

doi:10.1117/12.906331

22 February 2012 Optimal arrangement of meta-atoms composing metamaterials

Yi-Chen Chuang, Richard Dudley, Michael A. Fiddy

Proceedings Volume 8269, Photonic and Phononic Properties of Engineered Nanostructures II; 82691D (2012) https://doi.org/10.1117/12.906331
Event: SPIE OPTO, 2012, San Francisco, California, United States

Abstract

In order to better understand how to improve the performance of a superlens, structural and geometrical arrangements of meta-atoms are investigated. Each meta-atom (i.e. the unit element composing a metamaterial) in our study is an asymmetric 3D "S"-shaped resonator. This structure radiates an enhanced scattered field at several possible resonant frequencies, some of which are out of phase with the incident wave. We retrieve the effective parameters of different metamaterials and discuss the role of meta-atom symmetries and dimensions in affecting the effective refractive index of a metamaterial slab. Relative locations and orientations of individual meta-atoms are investigated to provide desired properties with low loss despite the inevitable finite size of each meta-atom. The results presented provide insights for designing superlenses, resonant antennas, and other potential applications.

Citation Download Citation

Yi-Chen Chuang, Richard Dudley, and Michael A. Fiddy "Optimal arrangement of meta-atoms composing metamaterials", Proc. SPIE 8269, Photonic and Phononic Properties of Engineered Nanostructures II, 82691D (22 February 2012); https://doi.org/10.1117/12.906331

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