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.....»»
The climate is changing so fast, we haven"t seen how bad extreme weather could get
Extreme weather is by definition rare on our planet. Ferocious storms, searing heat waves and biting cold snaps illustrate what the climate is capable of at its worst. However, since Earth's climate is rapidly warming, predominantly due to fossil fue.....»»
Physicists use light to probe deeper into the "invisible" energy states of molecules
A new optical phenomenon has been demonstrated by an international team of scientists led by physicists at the University of Bath, with significant potential impact on pharmaceutical science, security, forensics, environmental science, art conservati.....»»
Giant waves, monster winds and Earth"s strongest current: Why the Southern Ocean is a global engine room
The Southern Ocean is wild and dynamic. It experiences Earth's strongest winds and largest waves. It is home to city-sized icebergs and the biggest ocean current on the globe, as well as tiny turbulent flows that fit inside a teacup......»»
Nanoscale imaging provides insights into 2D and phase-change materials
Researchers from the University of California, Berkeley have developed cutting-edge nanoscale optical imaging techniques to provide unprecedented insights into the ultrafast carrier dynamics in advanced materials......»»
Newly created super-black wood can improve telescopes, optical devices and consumer goods
Thanks to an accidental discovery, researchers at the University of British Columbia have created a new super-black material that absorbs almost all light, opening potential applications in fine jewelry, solar cells and precision optical devices......»»
iOS 17.6 Problems: 5 Things You Need to Know
Apple’s iOS 17.6 update is causing problems for some iPhone users. Some iPhone users are noticing performance improvements after moving their device up from iOS 17.5.1, and older versions of iOS, to iOS 17.6. On the flip side, some iPhone users.....»»
Breakthrough in Z-alkene synthesis: Scientists develop efficient and sustainable method
Z-alkenes are organic compounds with a double bond between two carbon atoms and two substituents attached to the carbon atoms on the same side of the double bond. They are ubiquitous structural components of organic compounds in chemistry and biology.....»»
Balancing the seesaw: Simultaneously enhancing strength and elongation in metallic materials
Just as one side of a seesaw rises while the other falls, in the realm of metallic materials, "strength" and "elongation" typically conflict with each other. However, a collaborative team from POSTECH and Northwestern University has recently introduc.....»»
"Russian doll" packaging could boost drug delivery
New technology, which is in the early stages of development, has the potential to significantly enhance the effectiveness and reduce the side effects of drugs and vaccines......»»
Why the solar corona is so much hotter than sun"s surface
In a new study published in The Astrophysical Journal, a researcher from The University of Alabama in Huntsville (UAH), a part of the University of Alabama System, explores critical aspects of a phenomenon called kinetic Alfvén waves (KAWs) to provi.....»»
New study simulates gravitational waves from failing warp drive
Imagine a spaceship driven not by engines, but by compressing the spacetime in front of it. That's the realm of science fiction, right? Well, not entirely. Physicists have been exploring the theoretical possibility of "warp drives" for decades, and a.....»»
Cash and conservation: A worldwide analysis of the depiction of wildlife on money
If you were asked what images were depicted on each side of any of your country's banknotes, would you be able to confidently answer?.....»»
Optical fibers fit for the age of quantum computing
A new generation of specialty optical fibers has been developed by physicists at the University of Bath in the UK to cope with the challenges of data transfer expected to arise in the future age of quantum computing......»»
3D models show dolphins already used narrow-band sound waves for orientation 5 million years ago
Senckenberg researcher Dr. Rachel Racicot and her former student Joyce Sanks from Vanderbilt University have examined the inner ear of the extinct dolphin genus Parapontoporia. In their study, published in the journal The Anatomical Record, they show.....»»
Fortnite is finally coming back to iOS, but not in the way you think
Epic Games has revealed that it will use AltStore to help users side-load Fortnite onto their iOS devices, circumventing Apple’s App Store entirely......»»
Humanity suffering from "extreme heat epidemic," UN chief warns
Humanity is suffering from an "extreme heat epidemic," UN Secretary-General Antonio Guterres warned Thursday, calling for action to limit the impacts of heat waves intensified by climate change......»»
NASA streams first 4K video from aircraft to space station and back
A team at NASA's Glenn Research Center in Cleveland has streamed 4K video footage from an aircraft to the International Space Station and back for the first time using optical (laser) communications. The feat was part of a series of tests on new tech.....»»
Tunable metasurface can control optical light in space and time, offering path to wireless communication channels
It is a scene many of us are familiar with: You're working on your laptop at the local coffee shop with maybe a half dozen other laptop users—each of you is trying to load websites or stream high-definition videos, and all are craving more bandwidt.....»»
New work sheds light on nonlinear encoding in diffractive optical processors based on linear materials
UCLA researchers have conducted an in-depth analysis of nonlinear information encoding strategies for diffractive optical processors, offering new insights into their performance and utility. Their study, published in Light: Science & Applications, c.....»»
AI-powered optical detection to thwart counterfeit chips
The semiconductor industry has grown into a $500 billion global market over the last 60 years. However, it is grappling with dual challenges: a profound shortage of new chips and a surge of counterfeit chips, introducing substantial risks of malfunct.....»»