Invisibility cloak could hide opaque objects using light

From Star Trek to Harry Potter, invisibility cloaks are a popular theme in science fiction. And now researchers have developed a new technique that could turn the futuristic technology into a reality. The technique involves disrupting the way that light waves pass through opaque objects, and could lead to active camouflage. While researchers are yet to demonstrate it in practice, they are confident that experiments will soon confirm the idea. The concept involves shining a laser onto a material from above to pump it full of energy.