Pendry J B
Department of Physics, Blackett Laboratory, Imperial College London, London SW7 2AZ, UK.
Science. 2004 Nov 19;306(5700):1353-5. doi: 10.1126/science.1104467.
Negative refraction is currently achieved by driving the magnetic permeability and electrical permittivity simultaneously negative, thus requiring two separate resonances in the refracting material. The introduction of a single chiral resonance leads to negative refraction of one polarization, resulting in improved and simplified designs of negatively refracting materials and opening previously unknown avenues of investigation in this fast-growing subject.
