4+ hour, 30+ min 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…...

5+ hour, 25+ min 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....

11+ hour, 53+ min 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....

3+ day, 5+ hour ago   (702+ words) The Pentagon has moved directed-energy counter-drone systems into yearlong operational trials at U.S. military bases to assess their readiness for routine installation defense. The effort will... U.S. Begins Yearlong Directed Energy Counter-Drone Trials Across Five Military Bases. The Pentagon has moved directed-energy…...

12+ hour, 22+ min 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…...

13+ hour, 22+ min 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…...

13+ hour, 45+ min 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…...

1+ 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....

1+ day, 1+ hour ago   (761+ words) {“title”:”Chip-Scale Optical Circulator Promises Bidirectional 800G Fibre Transmission”,”html”:”Optical networks are built on a deceptively simple problem: light travelling in a fibre almost always wants to go both ways at once, and keeping those two directions from interfering with…...

1+ day, 1+ hour ago   (534+ words) Researchers at the University of Toronto and the University of Saskatchewan have engineered a compact, far-red light-responsive protein pair that could redefine how scientists switch molecules on and off inside living cells. The new system, described in Nature Methods, pairs…...