Observation of optical non reciprocity in a single layer of transparent linear chiral media with asymmetric boundaries

We report the observation of optical non reciprocity in a material system that is very close to natural structures, such as insect skin: a single layer of linear transparent material in its ground state. The process is shown to be defined by two key parameters: the chirality of the material and its asymmetric boundary conditions. Our qualitative and preliminary quantitative analysis are in very good agreement with experimental results.