(Phys.org)—A team of engineers at Purdue University has succeeded in building a time cloak based on dual laser broadcast communications channels sent through a common medium. In their paper published ...

Physicists in the UK have proposed a “space–time” invisibility cloak that, if built, could be used to prevent signal interference or give the illusion of a Star Trek teleportation device. The idea ...

Researchers at Purdue University may have created the first practical way to communicate with absolute secrecy by concealing messages in time using tricks of laser light and fiber optics. The ...

A “time cloak” that conceals events rather than objects can hide secret messages through a trick of light, making information invisible to all but the intended recipient. Like an invisibility cloak ...

Invisibility cloaking illustrating how cloaking works using electromagnetic cloaking. On the left, electromagnetic waves, which could be light, scatter upon hitting the cylinder in the middle. On the ...

WASHINGTON -- Researchers and engineers have long sought ways to conceal objects by manipulating how light interacts with them. A new study offers the first demonstration of invisibility cloaking ...

Researchers and engineers have long sought ways to conceal objects by manipulating how light interacts with them. A new study offers the first demonstration of invisibility cloaking based on the ...