Light-amplifying resin boosts invisibility cloaks - tech - 05 August 2010 - New Scientist

Light-amplifying resin boosts invisibility cloaks - tech - 05 August 2010 - New Scientist: "Metamaterials can bend light around objects to render them near-invisible, but they absorb so much light in the process that objects cannot be flawlessly disguised – they are revealed by the dimness of the metamaterial."