22+ hour, 40+ min ago   (208+ words) The core-shell alloyed structure of the UCNPs is not merely architectural; it directly addresses a limitation of conventional upconversion materials. The higher overall lanthanide content within the alloyed UCNPs enables brighter emission, an important factor when detecting faint infrared signals....

22+ hour, 29+ min ago   (255+ words) Researchers have experimentally demonstrated the optical Magnus effect for the first time, revealing that a tightly focused laser interacts most strongly with an atom slightly away from the beam’s center. The unexpected shift is similar to the physics that makes…...

23+ hour, 20+ min ago   (180+ words) ...

1+ day, 3+ hour ago   (271+ words) This work presents a conditional deep convolutional generative adversarial network (CDCGAN) for the inverse design of high-absorptance periodic metasurfaces (MSs) with different geometries. The conditioning mechanism encodes geometric and spectral parameters. A key innovation is the inclusion of unit cells…...

1+ day, 4+ hour ago   (649+ words) Every quantum network ever proposed faces the same awkward problem: the superconducting circuits that store and process quantum information speak in microwaves, while the optical fibers that carry signals across cities and continents speak in light....

1+ day, 11+ hour ago   (417+ words) Physicists have uncovered an in-plane Hall response that overturns a century-old assumption about how this famous electrical effect works. The discovery could eventually make multidirectional magnetic sensing possible with one tiny device....

1+ day, 11+ hour ago   (658+ words) For decades, one of the most stubborn bottlenecks in building faster, greener computer memory has been a simple question of timing: how do you deliver an electrical pulse short enough and powerful enough to flip a magnetic bit in a…...

1+ day, 12+ hour ago   (637+ words) Titanium is one of the most demanding materials in modern manufacturing. It is strong, lightweight, corrosion-resistant, and biocompatible, which makes it indispensable for aerospace components, medical implants, and precision microdevices. Yet those same qualities make titanium notoriously difficult to machine…...

1+ day, 13+ hour ago   (86+ words) A pinch of graphene may be all it takes to make liquid crystals dramatically more useful in the infrared. Researchers in Japan have shown that dispersing tiny flakes of the one-atom-thick carbon material into a common nematic liquid crystal boosts…...

2+ day, 3+ hour ago   (682+ words) Within tiny halos of light clinging to a vanishingly thin wisp of optical fiber, scientist Jongmin Lee guides atoms like marbles through a narrow pipe. Rock the fiber and the atoms shift side by side; they just don't fall off....