Non-linear optics meets X-rays
The recent advent of femtosecond X-ray sources offers unprecedented opportunities for structural and dynamical studies. It requires, however, manipulating spectral properties, as commonly done by non-linear optics at visible/infrared wavelengths. Her.....»»
Scientists demonstrate giant THz Kerr effect via stimulated phonon polaritons
Terahertz (THz) waves and THz technologies have gradually opened a new style for communications, cloud-based storage/computing, information contest, and medical tools. With the advancement of THz technologies, studies on THz nonlinear optics have eme.....»»
Advances in optical micronanofiber-enabled tactile sensors and soft actuators
A perfect combination of fiber optics and micro/nanotechnology, optical micro/nanofiber (MNF) is a new type of micro/nano-waveguide structure developed in recent years......»»
Superconductivity study confirms existence of edge supercurrents
Topological materials are materials that have unusual properties that arise because their wavefunction—the physical law guiding the electrons—is knotted or twisted. Where the topological material meets the surrounding space, the wavefunction must.....»»
Swappable optics could be the perfect accessory for an iPhone Air
Suggestions that Apple plans to launch an iPhone 17 Slim or iPhone 17 Air are gaining ground, with most reports now pointing to a compromise device. One big compromise we might see is for Apple to limit the model to a single camera – but there m.....»»
Physicists observe key minuscule molecular interactions in ultra-fast atomic processes
An international team of scientists is the first to report incredibly small time delays in a molecule's electron activity when the particles are exposed to X-rays......»»
Physics meets machine learning for better cyclone predictions
Time is of the essence in tropical cyclone prediction: The more warning time a community has, the better prepared its members will be when a storm makes landfall. Currently, the path and nature of tropical cyclones can be predicted up to only five da.....»»
Chalk-based coating creates a cooling fabric
In the scorching heat of summer, anyone who spends time outside—athletes, landscapers, kids at the park or beachgoers—could benefit from a cooling fabric. While there are some textiles that reflect the sun's rays or transfer heat away from the bo.....»»
Civilization VII hands-on: This strategy sequel rethinks the long game
Classic turn-based gameplay meets a radical rethink of the overall structure. Enlarge / Firaxis has upped the ante on presentation for the cities. It's still a bit abstract and removed, but they have more vibrancy, detail, and mo.....»»
Polarization volume gratings break uniformity-efficiency tradeoff in AR waveguide displays
Augmented reality (AR) has evolved from a futuristic concept to a widespread technology, thanks to advancements in microdisplay technologies, ultracompact imaging optics, and high-speed digital processors......»»
3 BritBox shows you should watch in August 2024
The era of streaming has pretty definitive pros and cons. Cable was expensive, but it led to a more linear experience where you know what you subscribed to, and could watch what you wanted only when it was on. Streaming allows for more choice, but wi.....»»
Cosmic count exceeds expectation: Alpha Magnetic Spectrometer on ISS reveals surplus of cosmic rays
Cosmic rays confound scientists once again. The latest analysis of data collected by the Alpha Magnetic Spectrometer (AMS) on board the International Space Station has revealed a surprising surplus of cosmic rays made of deuterons—atomic nuclei mad.....»»
A galactic "comet" called Terzan 5 illuminates a 100-year-old puzzle about cosmic rays
When my colleagues and I set to work on a century-old cosmic mystery, we found an unexpected celestial laboratory in Terzan 5, a dense star cluster currently plunging through our galaxy at breakneck speed......»»
PhAI—an AI system that figures out the phase of x-rays that crystals have diffracted
A trio of chemists at the University of Copenhagen has developed an AI application that can be used to figure out the phase of x-rays that crystals have diffracted as part of efforts to predict the structure of small molecules......»»
Bacteria encode hidden genes outside their genome; do we?
Since the genetic code was first deciphered in the 1960s, our genes have seemed like an open book. By reading and decoding our chromosomes as linear strings of letters, like sentences in a novel, we can identify the genes in our genome and learn why.....»»
New X-ray world record: Looking inside a microchip with 4 nanometer precision
In a collaboration with EPFL Lausanne, ETH Zurich and the University of Southern California researchers at the Paul Scherrer Institute PSI have used X-rays to look inside a microchip with higher precision than ever before. The image resolution of 4 n.....»»
Rubin Observatory"s 3.5-meter secondary mirror installed
Vera C. Rubin Observatory's 3.5-meter secondary mirror has been installed on the Simonyi Survey Telescope on Cerro Pachón in Chile. The glass mirror—made by Corning Advanced Optics and polished by L3Harris Technologies—is the first permanent com.....»»
Scientists find a human "fingerprint" in the upper troposphere"s increasing ozone
Ozone can be an agent of good or harm, depending on where you find it in the atmosphere. Way up in the stratosphere, the colorless gas shields the Earth from the sun's harsh ultraviolet rays. But closer to the ground, ozone is a harmful air pollutant.....»»
When it comes to DNA replication, humans and baker"s yeast are more alike than different, scientists discover
Humans and baker's yeast have more in common than meets the eye, including an important mechanism that helps ensure DNA is copied correctly, reports a pair of studies published in the journals Science and Proceedings of the National Academy of Scienc.....»»
The Hisense U9 is coming, so the U6 gets a 40% discount
Bright picture meets great colors and fast web performance with the Hisense 65-inch U6HF. For a limited time, save $300 when you buy this set through Amazon......»»
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.....»»