A digital ‘Rochester Cloak’ to fit all sizes
Using the same mathematical framework as the Rochester Cloak, researchers have been able to use flat screen displays to extend the range of angles that can be hidden from view. Their method lays out how cloaks of arbitrary shapes, that work from multiple viewpoints, may be practically realized in the near future using commercially available digital devices.
Invisibility cloaking device hides objects across range of angles
Scientists have recently developed several ways—some simple and some involving new technologies—to hide objects from view. The latest effort, developed by physics professor John Howell and graduate student Joseph Choi, not only overcomes some limitations of previous devices, but uses inexpensive, readily available materials in a new way. “This is the first device that we know of that can do three-dimensional, continuously multidirectional cloaking,” said Choi.
How To Hide a Boy – or Maybe a Satellite
With the help of his 14 year-old son, Benjamin, John Howell built three simple but surprisingly effective optical cloaking devices with inexpensive, off-the-shelf materials.
Mathematicians Find a Way to Hide Waves Inside an Invisible ‘Hat’
An international team of researchers, which includes Professor of Mathematics Allan Greenleaf from the University of Rochester, has come up with a process that would allow practical applications to be performed in a cloaked—or invisible—environment.