Innovations through hair-thin optical fibers
Scientists at the University of Bonn have built hair-thin optical fiber filters in a very simple way. They are not only extremely compact and stable, but also color-tunable. This means they can be used in quantum technology and as sensors for tempera.....»»
New InP-based modulator with record-high bit rates could help move more data faster
As data traffic continues to increase, there is a critical need for miniaturized optical transmitters and receivers that operate with high-order multi-level modulation formats and faster data transmission rates......»»
Optical invention mirrors the image processing power of a human eye
On a cold, sunny day, you're driving on a rural road, surrounded by snow-covered fields. In an instant, your eyes process the scene, picking out individual objects to focus on—a stop sign, a barn—while the rest of the scene blurs in the periphery.....»»
Scientists find new way to roll atomically thin nanosheets into scrolls
Researchers from Tokyo Metropolitan University have come up with a new way of rolling atomically thin sheets of atoms into "nanoscrolls." Their unique approach uses transition metal dichalcogenide sheets with a different composition on either side, r.....»»
Measuring exciton "holes": Insights into charge transfer at atomically thin interfaces between semiconductors
Semiconductors are ubiquitous in modern technology, working to either enable or prevent the flow of electricity. In order to understand the potential of two-dimensional semiconductors for future computer and photovoltaic technologies, researchers fro.....»»
Evidence that atomically thin hafnium telluride is an excitonic insulator
The condensation of excitons with non-zero momentum can give rise to so-called charge density waves (CDW). This phenomenon can prompt the transition of materials into a fascinating new quantum phase, known as an excitonic insulator......»»
From growing roots, clues to how stem cells decide their fate
It might look like a comet or a shooting star, but this time-lapse video is actually a tiny plant root, not much thicker than a human hair, magnified hundreds of times as it grows under the microscope......»»
Cleaned surfaces may be germ-free, but they"re not bare
Since the outbreak of COVID-19, surfaces in public spaces have been cleaned more often. While disinfectant solutions eliminate germs, they don't leave behind a truly bare surface. They deposit a thin film that doesn't get wiped up, even after giving.....»»
When nanoplastics are not what they seem: Release of oligomers from polyester textiles
Plastic household items and clothing made of synthetic fibers release microplastics, particles less than five millimeters in size that can enter the environment unnoticed. A small proportion of these particles are so small that they are measured in n.....»»
Submonolayer biolasers: Lower gain, higher sensitivity
Designing sensitive and single-use biosensors for early diagnosis remains a major challenge. Scientists in China have invented submonolayer lasers on optical fibers as ultrasensitive and disposable biosensors......»»
Multi-dimensional multiplexing optical secret-sharing framework with cascaded liquid crystal holograms
Information security has become particularly crucial under the background of the big data era. Optical secret-sharing schemes encrypt information and physically divide it into different shares. Information can only be decrypted by cascading a suffici.....»»
Small satellite may shape centaur rings
The unique two thin rings around the Centaur Chariklo could be shaped by an even smaller satellite. Chariklo is a Centaur, which are small bodies similar to asteroids in size but to comets in composition, that revolve around the sun in the outer sola.....»»
NYC"s community composting cuts are putting its curbside plan at risk
On a chilly day in December, a crowd gathered in the shadow of City Hall in lower Manhattan to chant, listen to speeches and wave signs crafted for the occasion. "No cuts to compost!" read one held by a man with shoulder-length gray hair. "Compost Ad.....»»
Lysfanga: The Time Shift Warrior review: try this one-of-a-kind action game
Lysfanga: The Time Shift Warrior features an ingenious combat hook, even if its stretched a little thin over a flat story......»»
A puzzling illness paralyzed US kids every other year—until it didn’t
Researchers braced for a surge in 2022 that never came—and no one knows why. Enlarge / This thin section transmission electron microscopic (TEM) image reveals numerous spheroid-shaped Enterovirus-D68 (EV-D68) virions. (credit:.....»»
Save on Dyson Airwrap, Airstrait, Corrale for Valentine’s Day
Best Buy has many great Dyson deals ready for Valentine's Day with over $100 off the most highly sought after Dyson hair products. Here's what to know......»»
How can I get ice off my car? An engineer who studies airborne particles shares quick, easy techniques
If you live somewhere that gets cold in the winter, you've probably seen cars parked outdoors covered in a thin layer of ice on a chilly morning. But what causes this frost, and how can you get rid of it quickly?.....»»
Progress on chip-based spontaneous four-wave mixing quantum light sources
A single-photon detector (SPD) is sensitive to incidence of individual quanta of light and has many applications in photonics, such as fluorescence measurements, laser ranging, optical time-domain reflectometer, and quantum optics experiments......»»
Tim Cook says Vision Pro costs $3,500 because it’s ‘tomorrow’s technology today’
It’s Vision Pro launch day and Apple CEO Tim Cook is celebrating in New York City. In addition to paying a visit to Apple Fifth Avenue, Cook also sat down with Good Morning America to talk about Apple’s foray into spatial computing. “I thin.....»»
NIS2 Directive raises stakes for security leaders
In this Help Net Security interview, Roland Palmer, VP Global Operations Center at Sumo Logic, discusses key challenges and innovations of the NIS2 Directive, aiming to standardize cybersecurity practices across sectors. NIS2 mandates minimal cyberse.....»»
Generating powerful optical vortices directly from a thin-disk laser oscillator
In recent years, optical vortices have attracted extensive attention in laser advanced manufacturing because of their annual intensity distribution and orbital angular momentum......»»