Category: Uncategorized

SEEING THROUGH WALLS. "This is achieved by using a remote device that transforms the scattered light outside a virtual boundary into that of the object chosen for the illusion, regardless of the profile of the incident wave. This type of illusion device also enables people to see through walls." https://lnkd.in/eyBstN6 View in LinkedIn

"TRANSMITTING INFORMATION of an object behind the obstacle to infinity." By a metallic lens for electromagnetic radiation. "The proposed transformation lens can mimic some properties of Einstein gravitational lens because their wave propagation behaviors are very similar." https://lnkd.in/emhrbrr View in LinkedIn

NEW METAMATERIALS. "At this moment, making negative-refractive index material in the microwave regime is quite feasible. It would be a big challenge to make such materials in the optical frequency range, although there have been some amazing advances in some US and European laboratories that may help realize our design in — say — the next three to five years." https://lnkd.in/eckFFcR View in LinkedIn

NEW METAMATERIALS. "At this moment, making negative-refractive index material in the microwave regime is quite feasible. It would be a big challenge to make such materials in the optical frequency range, although there have been some amazing advances in some US and European laboratories that may help realize our design in — say — the next three to five years." https://lnkd.in/eckFFcR View in LinkedIn

ILLUSION OPTICS. "The optical illusion takes place in a two-step process: first, the image of the real object is completely deleted by the device; then, the image of a different object is generated as a substitution for the cancelled one. The two steps are carried out by two different materials: the complementary medium and the restoring medium." https://lnkd.in/eckFFcR View in LinkedIn

LIGHT WAVE INTERFERENCE. "The principle behind the illusion device is not light bending as in cloaking devices but an exact cancellation and restoration of the optical images of the two objects involved in the illusion." https://lnkd.in/eckFFcR View in LinkedIn

OPEN DOOR. "We believe that our work may open up a practical door to realizing invisibility and creating illusions and may inspire interesting applications in the fields such as magic camouflaging and anti-detection." https://lnkd.in/e7eyJgs View in LinkedIn

PRACTICAL. "The carpet-like devices can work for macroscopic objects (at centimeter scale) at visible wavelength when the distance between the objects and the carpet-like devices is at the decimeter scale. In addition, the devices are made of commercially available all-dielectric materials." https://lnkd.in/e7eyJgs View in LinkedIn

HOLOGRAPHY. "We employ reflection holography to produce reflection time-reversal light to realize hiding objects and creating illusions above a carpet-like device through reflection observation." https://lnkd.in/e7eyJgs View in LinkedIn

TIME-REVERSAL. "So far, time-reversal principle has been widely exploited to produce phase-conjugation signals for not only imaging beyond the diffraction limit, focusing light into a scattering medium, but also concealing objects and creating illusions." https://lnkd.in/e7eyJgs View in LinkedIn