In real life, invisibility cloaks don’t come remotely close to the movies; for instance, they often tend to be solid objects that simply play perspective or reflective tricks on the eye. Now, researchers at …University of Central Florida, have created a cloak that actually bends and masks visible light using a fishnet-type of metamaterial.
The metamaterial fishnet is composed of metal and dielectric composite films, created using a nanotransfer printing method. The films are layered in such a way as to create a fishnet-like pattern, which in turn allows the control of visible-spectrum light.
The printed metamaterial sample is small — about 0.6 square inches (or four square centimeters) — but thanks to the fact that it’s a printing process, the UCF team feels it can print the material on a larger-scale for more practical applications, such as for use on fighter jets.