Intrinsic optical nonlinearities and carrier dynamics of InSe
Recently, researchers in Shanghai Institute of Optics and Fine Mechanics (SIOM) of the Chinese Academy of Sciences carried out a systematic investigation on the microscopic optical nonlinearities and transient carrier dynamics in Indium Selenide (InS.....»»
Assorted, distinctive behavior of molten uranium salt revealed by neutrons
In a paper published in the Journal of the American Chemical Society, researchers have documented for the first time the unique chemistry dynamics and structure of high-temperature liquid uranium trichloride (UCl3) salt, a potential nuclear fuel sour.....»»
Study: Giant ultrafast dichroism and birefringence with active nonlocal metasurfaces
The fine and efficient control of the properties of light at ultrafast speed down to the picosecond timescale is a challenging task, crucial for many scientific applications and technologies. For instance, in free-space optical links, manipulating on.....»»
The world"s fastest single-shot 2D imaging technique films ultrafast dynamics in flames
Candle flames and airplane engines produce tiny soot particles from polycyclic aromatic hydrocarbons (PAHs) as their precursors, both of which are harmful to humans and the environment. These carbon-based particles are also common in space, making up.....»»
High-refractive-index-modulation nanocomposites for augmented reality displays
Holographic optical elements (HOEs) are essential in augmented reality (AR) displays, providing benefits such as design flexibility and improved optical efficiency. However, current materials' limited refractive index modulation hampers performance,.....»»
Copper-based catalyst paves the way for sustainable ammonia production
Ammonia plays a critical role in food production and industrial development, with a global market size of approximately 175 million metric tons and a market value of $67 billion. Likewise, it is a high-energy-density carrier, making it a key player i.....»»
Doughnut-shaped region found inside Earth"s core deepens understanding of planet"s magnetic field
A doughnut-shaped region thousands of kilometers beneath our feet within Earth's liquid core has been discovered by scientists from The Australian National University (ANU), providing new clues about the dynamics of our planet's magnetic field......»»
Spin-controlled generation of a complete polarization set with randomly interleaved plasmonic metasurfaces
Optical metasurfaces are finely crafted two-dimensional artificial nanostructures composed of meticulously designed arrays of ultrathin artificial atoms. These surfaces possess capabilities beyond natural materials, enabling multifunctional control o.....»»
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......»»
New Sisyphus cooling technique could enhance precision of atomic clocks
Researchers in the Neutral Atom Optical Clocks Group at the National Institute of Standards and Technology (NIST), University of Colorado and Pennsylvania State University recently devised a new sub-recoil Sisyphus cooling technique that could help t.....»»
DNA replication in early embryos differs from previous assumptions, study shows
A new discovery by researchers at the RIKEN Center for Biosystems Dynamics (BDR) in Japan upends decades of assumptions regarding DNA replication. Led by Ichiro Hiratani and colleagues, the experiments published August 28 in Nature show that DNA repl.....»»
AT&T 911 outage sees company fined $950k; yesterday’s outage now fixed
An AT&T 911 outage back in 2023 has seen the company fined almost a million dollars. The Federal Communications Commission (FCC) says that the carrier not only failed to provide adequate backup coverage, but also didn’t let 911 centers know what h.....»»
New Lexus brand "taste" will come from sweeping rework of body rigidity
Lexus says it has found the missing piece in its quest to match the long-lauded driving dynamics of Germany's big premium players — better body rigidity. To deliver a better signature, Toyota's top-shelf marque is reworking ride and handling across.....»»
Dissecting caspase-2-mediated cell death: From intrinsic PIDDosome activation to chemical modulation
Caspase-2, an initiator caspase, plays a critical role in programmed cell death in response to certain cellular stresses. Its activation is facilitated by the PIDDosome, a multi-protein complex that assembles under conditions of genotoxic stress. Des.....»»
Researchers propose inexpensive 2.2-kilometer telescope that could make exoplanet movies
Can a kilometer-scale telescope help conduct more efficient science, and specifically for the field of optical interferometry? This is what a study recently posted to the preprint server arXiv hopes to address......»»
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.....»»
New approach for profiling complex dynamics at the single-molecule level
A team of researchers led by Professor Sebastian Deindl at Uppsala University has developed a pioneering method that vastly improves the ability to observe and analyze complex biological processes at the single-molecule level. Their work is published.....»»
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.....»»
The changing dynamics of ransomware as law enforcement strikes
After peaking in late 2023, the ransomware industry is beginning to stabilize in productivity, with notable developments in ransomware targets, and industry dynamics, according to WithSecure. Sectors impacted by ransomware (Source: WithSecure) While.....»»
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.....»»