meta-atoms into a structure creating a metamaterial [1]. Such a metamaterial can have optical properties which can be adapted to a certain requirement. To make a Negative index metamaterial, NIM, the requirement is that the refractive index, n, should be negative. By building certain shapes of meta-atom the permeability, µ, and permittivity, ԑ, of the metamaterial can in theory be chosen. From a construction point of view there are two branches of metamaterials which are 2D and 3D NIMs, and the construction
Brenton Coon Jamie Vilos Info Lit 14 May 2014 METAMATERIALS THE “WAVE” OF THE FUTURE For decades film makers and science fiction authors have toyed with the idea of what technology will look like in the future. Be that tractor beams, space ships, holodecks, transporters and so on. Because of the amazing creativity of minds from the past we benefit from their ideas now in the present. Technologies such as cell phones, blue tooth, head’s up displays, touch screens and even sliding glass doors are
and manipulated in a range of optical gadgets such as telescopes and projectors. Even in areas outside of visual aid and entertainment, optical apparatuses can be used to trick the eye and even showcase 3D images, as seen in holograms. Although metamaterials used in stealth technology lack obvious uses of mirrors, prisms and lenses, knowledge of principles observed in these tools such as reflection and refraction is used in the developing stages. In can then be said that the technology is based on