Month: September 2022

TUNABLE. "The hypercrystal is tunable using an external magnetic field, which leads to tunability of its periodicity (of the order of 1-2 μm) and very unusual polarization properties." https://lnkd.in/ev_ZGjS View in LinkedIn

SPACE-TIME CLOAKS. "They are also exploring theoretical phenomena in hyperbolic metamaterials and photonic hypercrystals including subwavelength spatial solitons (ultranarrow beams of light that form due to self-focusing in nonlinear optical media) and space-time cloaks (that hide events in both specific places and times)." https://lnkd.in/ev_ZGjS View in LinkedIn

CHIRALITY-SWITCHING DEVICE. "Based on transformation optics theory, we designed a chirality switching device, such that an object hidden inside would exhibit a reversed chirality (i.e., from left-handedness to right-handedness) for an observer at the far field." Not just a mirror image, but the original image is hidden. https://lnkd.in/bGA2Y3g View in LinkedIn

TRAD STEALTH PLANES. "A stealth aircraft, on the other hand, is made up of completely flat surfaces and very sharp edges. When a radar signal hits a stealth plane, the signal reflects away at an angle. In addition, surfaces on a stealth aircraft can be treated so they absorb radar energy as well. https://lnkd.in/bWNFS7U View in LinkedIn

DoD AND STEALTH TECH. "We plan to explore a variety of opportunities provided by this reflection symmetry for a new generation of photonic materials, structures and devices that will exhibit novel optical properties and functionalities." https://lnkd.in/b8aBttV View in LinkedIn

DoD AND STEALTH TECH. "We plan to pursue prospects in the areas of open quantum systems, plasmonics, and transformation optics. Our results may be also applicable to ultrasonics where stealth properties are often desired." https://lnkd.in/b8aBttV View in LinkedIn

ARTIFICIAL MAGNETISM is the next theme, timely in that there has been a recent breakthrough on the subject from a Barcelona lab, a city close to my heart and full of innovative science. In addition, it is also applied to magnetic cloaking. In this field again, physicists have broken textbook paradigms with exciting new materials. Throw out all the old textbooks, time to start again. View in LinkedIn

"PHOTONS are slippery fellas. Since they don’t have any electrons, they’re free to run through any matter, no matter how intense an electric field may be." https://lnkd.in/e6d7H_E View in LinkedIn

BREAKTHROUGH IN SYNTHETIC MAGNETISM used to control light via photonic crystals. "Scientists at Stanford, however, have come by a monumental breakthrough after they devised a way to exert virtual force on photons using synthetic magnetism similar to the effect of magnets on electrons. The findings could lead to a whole new generation of highly efficient electronics." https://lnkd.in/e6d7H_E View in LinkedIn

SYNTHETIC MAGNETISM. "This process actually breaks a key law of physics, known as the time-reversal symmetry of light. And could potentially create “an entirely new class of devices that use light instead of electricity for applications ranging from accelerators and microscopes to speedier on-chip communications.” https://lnkd.in/egWQir9 View in LinkedIn