Negative Refractive Index in Chiral Metamaterials

Zhang, Shuang and Park, Yong-Shik and Li, Jensen and Lu, Xinchao and Zhang, Weili and Zhang, Xiang. (2009) Negative Refractive Index in Chiral Metamaterials. Physical Review Letters, 102 (2). 023901. ISSN 0031-9007

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Abstract

We experimentally demonstrate a chiral metamaterial exhibiting negative refractive index at terahertz frequencies. The presence of strong chirality in the terahertz metamaterial lifts the degeneracy for the two circularly polarized waves and allows for the achievement of negative refractive index without requiring simultaneously negative permittivity and negative permeability. The realization of terahertz chiral negative index metamaterials offers opportunities for investigation of their novel electromagnetic properties, such as negative refraction and negative reflection, as well as important terahertz device applications.

Item Type: Article
Additional Information: Zhang, S (reprint author), Univ Calif Berkeley, Nanoscale Sci & Engn Ctr, 5130 Etcheverry Hall, Berkeley, CA 94720 USA
Uncontrolled Keywords: Negative refractive index, Metamaterials, Terahertz devices, TIME-DOMAIN SPECTROSCOPY; TERAHERTZ; NIHILITY; WAVES
InterNano Taxonomy: Nanoscale Objects and Nanostructured Materials
Areas of Application > Electronics and Semiconductor Industries
Nanomanufacturing Characterization Techniques
Tool development
Collections: Nanomanufacturing Report Collection
Nanomanufacturing Research Collection
Depositing User: Moureen Kemei
Date Deposited: 12 Apr 2010 20:36
Last Modified: 19 Sep 2011 21:46
URI: http://eprints.internano.org/id/eprint/426

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