What happens to plane waves at the planar interfaces of mirror-conjugated chiral media

Abstract
The plane-wave reflection and transmission characteristics of bimaterial interfaces between chiral and chiral–achiral interfaces have been extensively explored. We report on the curious characteristics of the interface formed by two chiral half-spaces, one of which is the mirror image of the other; this is referred to as problem 1. It is shown that these characteristics are related to the reflection of plane waves on the interface of a chiral half-space and a perfectly conducting one, which constitutes problem 2.