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Proceedings Paper

Numerical study of helix photonic metamaterial
Author(s): Yu-Ray Li; Hsiang-Hung Huang; Yi-Chun Ling; Yu-Chueh Hung
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Paper Abstract

Helix photonic metamaterials are attractive to many applications due to the unique properties of strong circular dichroism and gyrotropy. In this study, the optical properties of metallic helix metamaterial were systematically investigated. Such metamaterial is composed of three-dimensional metallic helical nanowires arranged in a two-dimensional array. 3D finite-difference time-domain (FDTD) method was adopted for simulating the spectral response under the excitation of circularly polarized light. We show that the spectral responses were correlated to the dimensions of the helix structures. Generally, the resonance wavelengths as well as optical properties were determined by the geometrical parameters and the composed materials of the structures. When the dimension scaled down, electromagnetic interactions between helices are pronounced, which consequently affect the optical responses of the structures. The dependency between structure dimension and the corresponding optical properties were discussed and presented in this report.

Paper Details

Date Published: 23 February 2012
PDF: 7 pages
Proc. SPIE 8269, Photonic and Phononic Properties of Engineered Nanostructures II, 82692N (23 February 2012); doi: 10.1117/12.909794
Show Author Affiliations
Yu-Ray Li, National Tsing Hua Univ. (Taiwan)
Hsiang-Hung Huang, National Tsing Hua Univ. (Taiwan)
Yi-Chun Ling, National Tsing Hua Univ. (Taiwan)
Yu-Chueh Hung, National Tsing Hua Univ. (Taiwan)

Published in SPIE Proceedings Vol. 8269:
Photonic and Phononic Properties of Engineered Nanostructures II
Ali Adibi; Shawn-Yu Lin; Axel Scherer, Editor(s)

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