Two-photon absorption and stimulated emission in poly-crystalline zinc selenide with femtosecond laser excitation
In a new publication from Opto-Electronic Advances, authors from the Laser Engineering Group in the School of Engineering at the University of Liverpool, Liverpool, United Kingdom, discuss two-photon absorption and stimulated emission in poly-crystal.....»»
Investigating the impact of ultralight dark matter on gravitational wave signals
A recent study in Physical Review Letters explores the effects of ultralight dark matter in extreme-mass-ratio inspirals (EMRIs), which could be detected by future space-based gravitational wave detectors like LISA (Laser Interferometer Space Antenna.....»»
The best printers for small businesses: inkjets and lasers
Here are the best laser and inkjet printers for small businesses, a selection of fast, reliable multifunction printers durable enough for busy office......»»
VW says it will have enough ID Buzz electric minivans for the world
U.S. consumers seem eager for the emission-free reinvention of a hippie icon, but it's unclear how many will be available......»»
DNA-binding C2H2 zinc finger proteins also regulate RNA processing, researchers discover
Researchers at the University of Toronto have shown that an important class of DNA-binding factors can also bind to RNA, regulating gene expression through various mechanisms. The study significantly expands our understanding of these proteins' funct.....»»
New method to generate photon pairs efficiently on a chip
Thin-film lithium niobate is an emerging nonlinear integrated photonics platform ideally suited for quantum applications. Through spontaneous parametric down-conversion (SPDC), it can generate correlated photon pairs for quantum key distribution, tel.....»»
Revealing the hidden universe with full-shell X-ray optics
The study of X-ray emission from astronomical objects reveals secrets about the universe at the largest and smallest spatial scales. Celestial X-rays are produced by black holes consuming nearby stars, emitted by the million-degree gas that traces th.....»»
Google and Kairos sign nuclear reactor deal with aim to power AI
New Google agreement could boost development of zero-emission small modular reactors. On Monday, Google announced an agreement with Kairos Power to purchase nuclear energy from mu.....»»
Astronomers detect very-high-energy gamma-ray emission surrounding distant pulsar
Using the Large High-Altitude Air Shower Observatory (LHAASO), an international team of astronomers have detected very-high-energy (VHE) gamma-rays around the pulsar PSR J0248+6021, which may be the pulsar's halo or a pulsar wind nebula. The finding.....»»
New technologies could help destroy persistent "forever chemicals"
Scientists and engineers are developing new ways to destroy per- and poly-fluoroalkyl substances (PFAS) efficiently and sustainably. This class of chemicals is known as "forever chemicals" because PFAS persist and accumulate in the environment, anima.....»»
LIGO team enhances gravitational wave detection with squeezed light
A team of researchers at the Laser Interferometer Gravitational-Wave Observatory (LIGO), in the U.S., has developed what they describe as a squeezed light system to improve detection sensitivity......»»
New insights into grain boundary kinetics challenge traditional views
Researchers from City University of Hong Kong (CityUHK), in collaboration with experts from local and overseas universities, have reshaped scientists' fundamental understanding of the kinetic processes in crystalline materials, throwing light on new.....»»
Novel nanoparticle therapy targets fat absorption to combat obesity
Researchers have unveiled a novel approach to tackle obesity by targeting fat absorption in the small intestine. The cutting-edge nanoparticle system, engineered to deliver therapeutic molecules directly to the digestive tract, has shown significant.....»»
You Asked: Laser TV vs. UX, speaker break-in tips, and re-boxing tales
On today’s You Asked: Laser TV versus a huge mini-LED TV. What happens to the TVs after we test them? And breaking in TV speakers — is that even a thing?.....»»
Researchers develop a laser that produces the strongest ultra-short laser pulses to date
The word laser usually conjures up an image of a strongly concentrated and continuous light beam. Lasers that produce such light are, in fact, very common and useful. However, science and industry often also require very short and strong pulses of la.....»»
Finely regulated luminescent Ag-In-Ga-S quantum dots with green-red dual emission toward white LEDs
Semiconductor quantum dots (QDs) materials have shown great potential for applications in lighting and display fields due to their wide color gamut, adjustable emission wavelength, high quantum efficiency, high color saturation, and low processing co.....»»
Researchers create a three-dimensional multi-focus laser for glass micro-sculpting
Glass materials are widely used in optical and optoelectronic devices due to their low cost and excellent mechanical and optical properties. Among them, glass concave/convex linear structures with feature sizes ranging from several micrometers to hun.....»»
How did the building blocks of life arrive on Earth? Zinc fingerprints in meteorites offer clues
Researchers have used the chemical fingerprints of zinc contained in meteorites to determine the origin of volatile elements on Earth. The results suggest that without 'unmelted' asteroids, there may not have been enough of these compounds on Earth f.....»»
Climate change can alter methane emission and uptake in the Amazon
Extreme temperatures and humidity levels (excessive rain or drought) projected for the Amazon in the context of climate change may increase the volume of methane-producing microorganisms in flooded areas and reduce potential uptake of this greenhouse.....»»
NASA terminal transmits first laser communications uplink to space
NASA's LCOT (Low-Cost Optical Terminal), a ground station made of modified commercial hardware, has transmitted its first laser communications uplink to the TBIRD (TeraByte Infrared Delivery), a tissue box-sized payload formerly in low Earth orbit......»»
Hybrid fiber pump combiner could advance mid-IR laser systems
In the last two decades, the rapid advancement in applications such as environmental monitoring, medical diagnostics, and global positioning has intensified the focus on developing novel mid-IR light sources. Fiber-based mid-IR lasers, which operate.....»»