While the researchers welcome these new developments in metamaterials at optical wavelengths, they also caution that they are still far off from invisibility cloaks and other applications that may ...

If young Harry and friends had not cruised around Hogwarts unseen, hidden by an “invisibility cloak,” much of the hype surrounding metamaterials might itself never have seen the light of day.

An invisibility cloak works by bending light around a central ... This control is supplied by optical metamaterials, which are (usually) periodic nanostructured materials, where the periodic ...

The quest to build a working “invisibility cloak” generally focuses on the use of metamaterials – artificially engineered materials with a negative refractive index that have already been ...

and hybrid metamaterials," says Mitri. Applications of the technology, to name only a few, include: invisibility cloaks to hide objects from radar and sonar detection, sub-wavelength focusing for ...

It might change in the future with more advanced passive metamaterials, but for now active designs are the way forward. Research into active invisibility cloaks is currently being carried out by ...

Invisibility cloaks closer thanks to ‘digital metamaterials’ Published: September 14, 2014 9:36pm EDT Penny Orbell , The Conversation , Boris Kuhlmey , Min Gu , Tiffany Walsh ...

This makes metamaterials the tool of choice for scientists racing to build all sorts of wave-cloaking devices, including the so-called invisibility cloak — a cover to render whatever’s inside ...

We can build metamaterials to respond in particular ... One application that got a lot of press was the creation of an “invisibility cloak.” Normally if a microwave radar were aimed at an ...

Metamaterials first captured the public imagination in 2006, when John Pendry of Imperial College published two papers showing how to create a Harry Potter-style invisibility cloak using the ...

Metamaterials first captured the public imagination in 2006, when John Pendry of Imperial College published two papers showing how to create a Harry Potter-style invisibility cloak using the ...