Remember the movie invisible man?Making object Transparent is always sceities dream.The F-117 Nighthawk stealth fighter was the first stealth aircraft to be used operationally .
"While full cloaking has not been achieved, it shows promises in the right direction," says Ulf Leonhardt at the University of St Andrews, UK.
For now, such technology can cloak only objects with a surface area of a few square micrometres and a few hundred nanometres deep. But "in principle, you can make the [cloaked] object larger and larger", says Thomas Zentgraf, a member of the Berkeley team.
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