Negative refractive materials

摘要

There is always news in the compound world related to left-handed materials or negative refractive materials (not necessarily the same, but related); not necessarily chiral, although some materials chiral may be induced to produce some left-handed features. There is a closely related discovery to left-handed field behaviours and patterns, in "Negative Refractive Bicrystal with Broken Symmetry Produces Asymmetric Electromagnetic Fields in Guided-Wave Hetero-structures," Phys. Rev. Letts, 93 (5, 053902) 29 July 2004.