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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

MACRO APP. "The carpet-like device can work for macroscopic objects at visible wavelength as the distance between objects and device is at decimeter scale. Our carpet-like device to realizing invisibility and creating illusions may provide a robust way for crucial applications of magic camouflaging and anti-detection etc." https://lnkd.in/e7eyJgs View in LinkedIn

"THE DEVICE is fabricated through recording a reflection hologram of objects and is used to produce a time-reversed signal to compensate for the information of the objects and further to create light field of another object so as to realize both functions of hiding the objects and creating illusions, respectively." https://lnkd.in/e7eyJgs View in LinkedIn