Cloaking Device Breakthrough

For the first time, physicists have devised a way to make visible light travel in the opposite direction that it normally bends when passing from one material to another; a phenomenon called negative refraction. It could be used to construct optical microscopes for imaging things as small as molecules and to create cloaking devices. Dionne, one of the lead authors, says that the breakthrough is made possible by the Atwater lab's work on plasmonics, an emerging field that "squeezes" light with specially designed materials to create a wave known as a plasmon. The plasmons carry the light along the silver-coated surface of a silicon-nitride material and then across a nanoscale gold prism so that the light reenters the silicon-nitride layer with negative refraction.
This is really cool....its like something out of star trek!
http://www.sciencedaily.com/releases/2007/03/070322132145.htm