A multidirectional `perfect paraxial’ cloak using four lenses. From a continuous range of viewing angles, the hand remains cloaked, and the grids seen through the device match the background on the ...

Invisibility has quietly shifted from fantasy to engineering problem, and the most convincing proof is not a shimmering cape but a magnetic cloaking device that makes fields themselves vanish from ...

The theorists who first created the mathematics that describe the behavior of the recently announced “invisibility cloak” have revealed a new analysis that may extend the current cloak’s powers, ...

3D and cross-sectional views of an optimized Superconducting (SC)- Soft-Ferromagnetic bilayer (SFM) cloak. At the left no SFM is used showing the diamagnetic response of the SC. At the right the ...

Invisibility and cloaking devices gained significant interest amongst scientific communities two decades ago, when researchers from Duke University and Imperial College London theorized that light can ...

Transformation optics is a design paradigm that employs coordinate transformations to manipulate the paths of electromagnetic waves through engineered media. By prescribing how space is stretched or ...

Metamaterial-based electromagnetic cloaking encompasses a suite of approaches that steer, suppress or cancel the scattering of incident waves to render objects effectively invisible to detection. Two ...