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

Chiral metamaterial with unit negative refraction index

¹ 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

Corresponding author: isemchenko@gsu.by

Received: 1 February 2008
Revised: 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.