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.....»»
Ransomware negotiation: When cybersecurity meets crisis management
In this Help Net Security interview, Tim Morris, Chief Security Advisor at Tanium, discusses ransomware negotiation, how it typically unfolds, and how organizations should have a playbook that clearly outlines what to do, when to do it, who is notifi.....»»
Scientists develop high-power optic fiber laser to power nano satellites
The use of lasers in space is a reality. Even though radio waves have been the backbone of space communications for ages, the demand to convey more data, in a faster way, made these lighter, more flexible, and more secure infrared rays (invisible to.....»»
New quantum optics technique sheds light on polariton interactions
An international collaboration, led by Macquarie University scientists, has introduced a new quantum optics technique that can provide unprecedented access to the fundamental properties of light-matter interactions in semiconductors......»»
Netflix’s gritty new movie The Kitchen is like Blade Runner meets Top Boy
Netflix’s gritty new movie The Kitchen is like Blade Runner meets Top Boy.....»»
Gravitational waves could show us the first minute of the universe
Astronomers routinely explore the universe using different wavelengths of the electromagnetic spectrum from the familiar visible light to radio waves and infrared to gamma rays. There is a problem with studying the universe through the electromagneti.....»»
Using "Kerr solitons" to boost the power of transmission electron microscopes
When light goes through a material, it often behaves in unpredictable ways. This phenomenon is the subject of an entire field of study called "nonlinear optics," which is now integral to technological and scientific advances from laser development an.....»»
To protect endangered sharks and rays, scientists are mapping these species" most important locations
All of the saltwater bodies on Earth make up one big ocean. But within it, there is infinite variety—just ask any scuba diver. Some spots have more coral, more sea turtles, more fish, more life......»»
Nanostructured flat lens uses machine learning to "see" more clearly, while using less power
A front-end lens, or meta-imager, created at Vanderbilt University can potentially replace traditional imaging optics in machine-vision applications, producing images at higher speed and using less power......»»
3D printed multilayer structures for high-numerical aperture achromatic lenses
Flat optics are made of nanostructures containing high-refractive index materials to produce lenses with thin form factors that function only at specific wavelengths......»»
In quest to prevent debilitating traumatic brain injuries, new foam material rises to the top
From falls to football tackles, most blows to the head occur at odd angles. And those impacts trigger simultaneous linear and rotational head motions. The rotating movement in particular causes shear strain, which is especially damaging to the brain......»»
Government makes an app to cut down government’s role in solar permitting
A web-based app quickly takes a system's specs and sees if it meets local codes. Enlarge / NREL has taken some of the hassle out of getting permits for projects like these. (credit: owngarden) Can government agencies dev.....»»
US-Mexico border wall threatening rare wildlife
Jaguars don't understand borders, but where the United States meets Mexico, they are having to adapt to them......»»
Researchers create stable hybrid laser by 3D printing micro-optics onto fibers
For the first time, researchers have shown that 3D-printed polymer-based micro-optics can withstand the heat and power levels that occur inside a laser. The advance enables inexpensive, compact, and stable laser sources that would be useful in a vari.....»»
New NASA satellite to unravel mysteries about clouds, aerosols
Some of the same properties of light and optics that make the sky blue and cause rainbows can also help scientists unlock mysteries about cloud formation and the effects of tiny particles in our air......»»
Political science meets physical science: The shared concept of stability
In a Perspective, a biophysical chemist, Kenneth J. Breslauer, and his brother, a political scientist, George W. Breslauer, explore the parallelisms between the concept of stability as it is used in their respective fields. The Perspective is publish.....»»
Optimization of hard–soft material interfaces: A 3D printed imitation of bone–tendon connections
Most people can relate to having a laptop charger break right where the flexible cable meets the solid adapter. This is just one example of how difficult it is to effectively interface hard and soft materials. Using a unique 3D printing process, TU D.....»»
New approach overcomes long-standing limitations in optics to enhance the efficiency of Mie scattering
When you look up at the sky and see clouds of wondrous shapes, or struggle to peer through dense, hazy fog, you're seeing the results of "Mie scattering," which is what happens with light interacts with particles of a certain size. There is a growing.....»»
New plasma instability sheds light on the nature of cosmic rays
Scientists from the Leibniz Institute for Astrophysics Potsdam (AIP) have discovered a new plasma instability that promises to revolutionize our understanding of the origin of cosmic rays and their dynamic impact on galaxies......»»
A new (micro) lens on optics: Researchers develop hybrid achromats with high focusing efficiencies
Using 3D printing and porous silicon, researchers at the University of Illinois Urbana-Champaign have developed compact, visible wavelength achromats that are essential for miniaturized and lightweight optics. These high-performance hybrid micro-opti.....»»
Making extremely thing lubricating films predictable: Extension of the Reynolds equation by a non-linear wall slip law
When an electric vehicle accelerates, the motor generates maximum forces and enormous pressures act on the gears of the electric drivetrain. Surface meets surface, metal meets metal. If there were no lubricating film to allow the gears to slide more.....»»