Department of General Physics and Department of Optics, Gomel State University, Sovyetskaya Str. 104, 246019 Gomel, Belarus
Department of Radio Science and Engineering/SMARAD, Center of Excellence, Helsinki University of Technology, PO 3000, 02015 TKK, Finland
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.
(Received February 1 2008)
(Revised May 29 2008)
(Accepted June 2 2008)
(Online publication September 19 2008)