If you are a fan of Harry Potter fiction film or animation film Doraemon, surely you've seen a magic cloak that can make any object inside the cloak cannot be viewed alias invisibility. Magic cloak that exists only in the film will be present in the real world thanks to the discovery of a US scientist who managed to create invisibility cloaks this.
The cloak is made of very thin fabric fibers, so that any objects that are in the cloak can be manipulated or not visible to the human eye. Indeed, the ability of this robe looks like magic or magic, but a team of researchers from the Berkeley National Laboratory of the US Department of Energy and the University of California, Berkeley, said the magic cloak made of very thin microscopic nanoantennas, which only has a thickness of 80 nanometers.
The team of researchers explains how to work this robe, as a means of manipulating how light bounces to the object or objects. In this way, our brain is unable to interpret the workings of the light is manipulated. By disrupting the ability of the objects covered by the invisibility cloak will appear.
Director of Berkeley Lab's Materials Sciences Division, Xiang Zhang, said that this was the first time a 3D object can be created as if it disappears or is covered by a translucent with the robe. He also said that the robe they made very thin and looks like a coat, so it is easy to design and implement them into the real world.
Made of gold-colored sheer fabric fibers, known as nanoantennas, the team of researchers made this cloak objects in order to cover medium-sized and some small parts of the human body. The team of researchers revealed that the surface of the cloak can manipulate light waves bouncing inside him that makes objects invisible when switched on.
However, this robe also has a number of shortcomings, namely nanoantennas fiber pattern that has not been able to follow the structure of the objects covered by it, so that the objects wrapped in the cloak cannot be moved. In addition, the wrapped object also cannot be too large, because the image produced by these objects to date cannot be removed even after using this technique.
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