Researchers have proposed the first design of a cloaking device that uses an external source of energy to significantly broaden its bandwidth of operation. Researchers at The University of Texas at ...

Radio frequency filters can change which signals they block through a range of frequencies, using an origami-based structure to change their dimensions. Researchers at the Georgia Institute of ...

A researcher at the University of Texas at Austin has devised an invisibility cloak that could work over a broad range of frequencies, including visible light and microwaves. This is a significant ...

Physicists in the US claim to have created the first 3D invisibility cloak that can operate alone in free space. The cloak, based on a “plasmonic” shell, can hide a cigar-sized cylinder from ...