Optical superoscillation without side waves
Optical superoscillation refers to a wave packet that can oscillate locally in a frequency exceeding its highest Fourier component. This intriguing phenomenon enables production of extremely localized waves that can break the optical diffraction barr.....»»
Researcher explores how you can stretch your mind to grasp quantum entanglement
My new article, "Quantum Entanglement of Optical Photons: The First Experiment, 1964–67," is intended to convey the spirit of a small research project that reaches into uncharted territory. The article breaks with tradition, as it offers a first-pe.....»»
Researchers demonstrate metasurfaces that control thermal radiation in unprecedented ways
Researchers with the Advanced Science Research Center at the CUNY Graduate Center (CUNY ASRC) have experimentally demonstrated that metasurfaces (two-dimensional materials structured at the nanoscale) can precisely control the optical properties of t.....»»
Where to use Buddha’s Eyeballs in Black Myth: Wukong
There are a lot of mysteries to solve in . That’s because some objectives are unclear, and you only have contextual clues to rely on. One of these side quests takes place in the game’s second chapter, where you find yourself gathering a b.....»»
World"s first micromachine twists 2D materials at will
Just a few years ago, researchers discovered that changing the angle between two layers of graphene, an atom-thick sheet of carbon, also changed the material's electronic and optical properties. They then learned that a "twist" of 1.1 degrees—dubbe.....»»
Repurposing pencil lead as an optical material using plasma
Optical materials are essential in many modern applications, but controlling the way a material reflects light on its surface is costly and difficult. Now, in a recent study, researchers from Japan found a simple and low-cost way of tuning the reflec.....»»
Novel technique allows malicious apps to escape iOS and Android guardrails
Web-based apps escape iOS "Walled Garden" and Android side-loading protections. Enlarge (credit: Getty Images) Phishers are using a novel technique to trick iOS and Android users into installing malicious apps that bypas.....»»
Advanced orbital angular momentum mode switching in multimode fiber utilizing an optical neural network chip
The rapid development of technologies such as the internet, mobile communications, and artificial intelligence has dramatically increased the demand for high-capacity communication systems. Among various solutions, mode-division multiplexing (MDM) ha.....»»
Quality control: Neatly arranging crystal growth to make fine thin films
Table salt and refined sugar look white to our eyes, but that is only because their individual colorless crystals scatter visible light. This feature of crystals is not always desirable when it comes to materials for optical and electrical devices, h.....»»
Geophysicists find link between seismic waves called PKP precursors and strange anomalies in Earth"s mantle
For the decades since their discovery, seismic signals known as PKP precursors have challenged scientists. Regions of Earth's lower mantle scatter incoming seismic waves, which return to the surface as PKP waves at differing speeds......»»
New AI tool captures how proteins behave in context
A fish on land still waves its fins, but the results are markedly different when that fish is in water. Attributed to renowned computer scientist Alan Kay, the analogy is used to illustrate the power of context in illuminating questions under investi.....»»
Coherence entropy unlocks new insights into light-field behavior
Light technology is at the heart of many cutting-edge innovations, from high-speed internet to advanced medical imaging. However, transmitting light through challenging environments, such as turbulent atmospheres or deformed optical systems, has alwa.....»»
Mediterranean Sea temperatures match 2023 records
The temperatures of the Mediterranean Sea in recent days have reached heat records set last summer, the main Spanish maritime research center told AFP Tuesday, with marine heat waves in some places exceeding 30 degrees Celsius......»»
Study reveals urban trees suffer more from heat waves and drought than their rural counterparts
A recently published study in Ecological Applications details how trees in New York City and Boston are more negatively impacted by heat waves and drought than trees of the same species in nearby rural forests. The finding, made by researchers at the.....»»
Advanced microscopy method reveals hidden world of nanoscale optical metamaterials
Scientists from the Department of Physical Chemistry at the Fritz Haber Institute of the Max Planck Society have made a significant discovery in the field of nanotechnology, as detailed in their latest publication in Advanced Materials. Their paper,.....»»
Dealing with election anxiety? Psychiatrist explains how to channel your fears, break out of tribal thinking
Instead of excitement about the upcoming election, many of my patients and friends—regardless of political affiliation—report they're terrified at the thought of the "other side" winning. Democrats tell me they fear Donald Trump will end our demo.....»»
Researchers discover new material for optically-controlled magnetic memory
Researchers at the University of Chicago Pritzker School of Molecular Engineering (PME) have made unexpected progress toward developing a new optical memory that can quickly and energy-efficiently store and access computational data. While studying a.....»»
Ars asks: What was the last CD or DVD you burned?
With the demise of Apple's SuperDrive, we reminisce on our final homemade optical discs. Enlarge / This is one method of burning a disc. (credit: 1001slide / Getty Images) We noted earlier this week that time seems to ha.....»»
iOS 17.6.1 Problems: 5 Things You Need to Know
Apple’s new iOS 17.6.1 update is causing problems for some iPhone users. Some iPhone users are noticing performance improvements after moving their device up from iOS 17.6, and older versions of iOS, to iOS 17.6.1. On the flip side, some iPhone.....»»
How this summer"s heat waves may impact the economy
This sweltering summer has brought record-breaking high temperatures to 63 countries, all but cementing 2024's status as the world's hottest year on record (even though we're barely past the halfway point). Such extreme weather trends are bound to ha.....»»
The ChatGPT app for Mac just got this helpful new feature
Using Option + Space, the ChatGPT app for Mac can now open up side by side with other apps......»»