Issue Eur. Phys. J. Appl. Phys. Volume 46, Number 3, June 2009 Metamaterials Article Number 32607 Number of page(s) 4 Section Metamaterials 2007 DOI 10.1051/epjap:2008131 Published online 19 September 2008

Eur. Phys. J. Appl. Phys. 46, 32607 (2009)
DOI: 10.1051/epjap:2008131

Chiral metamaterial with unit negative refraction index

I.V. Semchenko¹, S.A. Khakhomov¹ and S.A. Tretyakov<sup>2

1</sup>  Department of General Physics and Department of Optics, Gomel State University, Sovyetskaya Str. 104, 246019 Gomel, Belarus
²  Department of Radio Science and Engineering/SMARAD, Center of Excellence, Helsinki University of Technology, PO 3000, 02015 TKK, Finland

isemchenko@gsu.by

Received: 1st February 2008 / Received in final form: 29 May 2008 / Accepted: 2 June 2008 / Published online: 19 September 2008

Abstract
In this article we study helical inclusions of a certain shape (called the “optimal shape”), such that the electric, magnetic, and magneto-electric polarizabilities are equal, and discuss unusual refractive and absorptive properties of artificial chiral materials based on such inclusions. We propose a new method of analytical calculation of resonant susceptibility of non-canonical, but true three-dimensional spirals. This method takes into account spiral trajectories and effective concentration of conduction electrons.

PACS
81.05.Zx - New materials: theory, design, and fabrication.

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