Configurable topological beam splitting via antichiral gyromagnetic photonic crystal
Topological insulators, whose bulky states are prohibited while surface/edge states are conductive and topologically protected. Recent advances in topologically protected edge states have drawn growing attention in the optics and photonics community......»»
New technique accomplishes precise control of photonic angular momentum
Rotating objects carry angular momentum; this fact extends even to the tiniest of particles, such as photons. Photons possess not one but two distinct forms of angular momentum: spin angular momentum (SAM) and orbital angular momentum (OAM)......»»
New photonic chips for high-capacity data transmissions
With the growth in artificial intelligence (AI), 5G systems, cloud computation, and the Internet of Things, transmitters with extremely high capacities are required for data communication. Ultrafast optical modulation is an essential technology for h.....»»
Efficient bi-functional catalyst for methanol-assisted water splitting of hydrogen generation
Hydrogen energy, as a green and environmentally friendly energy carrier, is a critical switch in energy conversion to the green economy, and the green hydrogen generation via water splitting technique from renewable energy sources is regarded as the.....»»
Manipulating nonlinear exciton polaritons in a WS2 monolayer with artificial lattices
Exciton polaritons, hybrid quasiparticles caused by the strong exciton-photon coupling, constitute a unique prototype for studying many-body physics and quantum photonic phenomena traditionally in cryogenic conditions......»»
High-speed electro-optic modulation in topological interface states of a one-dimensional lattice
Electro-optic modulators, which convert signals from the electrical to the optical domain, are at the heart of optical communications, terahertz wireless communications, microwave signal processing, and quantum technology. Next-generation electro-opt.....»»
Ionic crystal generates molecular ions upon positron irradiation
The positron, the antiparticle of the electron, has the same mass and charge as that of an electron but with the sign flipped for the charge. It is an attractive particle for scientists because the use of positrons has led to important insights and d.....»»
Researchers develop nonlinear optical crystals by unusual cationic substitution strategy
An ideal infrared (IR) nonlinear optical (NLO) crystal must have the advantages of a wide transmittance range, impressive laser-induced damage threshold (LIDT), sufficient birefringence index, bulk single-crystal form, and physicochemical stability......»»
It cost $120M for Cyberpunk 2077 patches and DLC to fix the game’s image
Moving to Unreal Engine, and splitting dev sites, seems like a wise plan. Enlarge / Visitors queue for Cyberpunk Phantom Liberty at the Xbox booth at the Gamescom video game fair in Cologne, Germany, on August 23, 2023. The DLC h.....»»
Using air to deflect lasers
Using a novel method, beams of laser light can be deflected using air alone. An invisible grating made only of air is not only immune to damage from the laser light, but it also preserves the original quality of the beam, reports an interdisciplinary.....»»
Using DNA as glue to hold nanostructures together and build ultra-strong colloidal crystal metamaterials
A team of chemical and biological engineers working with a group of nanotechnologists at Northwestern University in Illinois has developed a type of super-strong colloidal crystal metamaterial by gluing together metal nanostructures using strands of.....»»
Every iPhone screen has a barcode to prevent a manufacturing scam
Apple spent millions to add a barcode to iPhone displays in order to save being charged hundreds of millions by manufacturers claiming faulty screens that may not have been.Chinese display firms Lens Technology and Biel Crystal have been controversia.....»»
Does Dell or HP make the best 16-inch laptop? You might be surprised
The Dell Inspiron 16 Plus and the HP Envy 16 are both attractively priced 16-inch powerhouses. But the Envy 16 is a more elegant and configurable laptop......»»
Integrating 2D materials for on-chip photonics
Recently, the introduction of nonlinear optical functions in integrated optics has sparked significant enthusiasm. Demonstrations have shown the potential for integrated photonic platforms. Furthermore, large-scale manufacturing capability and afford.....»»
Researchers fabricate chip-based optical resonators with record low UV losses
Researchers have created chip-based photonic resonators that operate in the ultraviolet (UV) and visible regions of the spectrum and exhibit a record low UV light loss. The new resonators lay the groundwork for increasing the size, complexity and fid.....»»
Why Rain Is Getting Fiercer on a Warming Planet
Extreme rain is getting more extreme as temperatures rise. That may seem counterintuitive, but the underlying physics is crystal clear......»»
Gold nanoclusters can improve electrochemical water splitting to produce hydrogen
As energy demand continues to rise, research into new, efficient renewable and clean energy sources is an urgent priority. Currently, renewable energy sources like solar, wind, tide, and geothermal make up less than 40% of the current energy demand......»»
Another top Silicon Valley investor is splitting off its China business as pressure mounts
GGV Capital, a prominent Silicon Valley venture capital firm, has become the latest big investor to break up its US and China operations into separate companies as tensions between the two countries over tech and geopolitics continue to rise......»»
Achromatic diffractive liquid-crystal optics for virtual reality displays
As a promising candidate for the next-generation mobile platform, mixed reality (MR) such as Apple Vision Pro and Meta Quest Pro (both are passthrough virtual reality headsets) has the potential to revolutionize the way we perceive and interact with.....»»
Topological materials open a new pathway for exploring spin hall materials
A group of researchers have made a significant breakthrough which could revolutionize next-generation electronics by enabling non-volatility, large-scale integration, low power consumption, high speed, and high reliability in spintronic devices......»»
Researchers advance topological superconductors for quantum computing
Quantum computers process information using quantum bits, or qubits, based on fragile, short-lived quantum mechanical states. To make qubits robust and tailor them for applications, researchers from the Department of Energy's Oak Ridge National Labor.....»»