Abstract
This paper is a theoretical investigation and analysis of the focal region fields of a hyperbolic focusing lens embedded in chiral medium. Chiral-dielectric and dielectric-chiral interfaces are studied and the behavior of waves after passing through these interfaces are discussed. Geometric optics (GO) is used initially. However, it fails around the focal region because it gives non-realistic singularity in this region. So, Maslov's method is used in the caustic region and the field analysis is made. The effect of chirality variation on the amplitude of the fields around the focal region is given and discussed. Geometrical optics is a technique which is used to determine the radiation and scattering from objects with dimensions greater than the wavelength. It is simple to apply and can be used to solve complicated problems that don't have exact solutions. The general expression for the field calculation using GO is given as following (1): u(r )= E0(ξ, ζ)J −1/2 exp −jk s0 + t
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