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.....»»
Super-resolution machining of single crystalline sapphire by femtosecond laser-induced, plasma-assisted ablation
A new study in Opto-Electronic Advances discusses super-resolution machining of single crystalline sapphire by GHz burst mode femtosecond laser-induced plasma assisted ablation......»»
Novel time-of-flight-resolved stimulated Raman scattering microscopy enables high-resolution bioimaging
Stimulated Raman scattering (SRS) microscopy is an optical vibrational spectroscopic imaging technique and has emerged as an appealing label-free imaging tool for tissue and cell imaging and characterization with high biochemical specificity......»»
Novel design for fast, sensitive high-energy photon detector
Prof. Long Shibing and his team from the University of Science and Technology of China (USTC) of the Chinese Academy of Sciences (CAS) have proposed a novel strategy for a high-energy photon detector with high sensitivity and response speed by coupli.....»»
Engineers develop advanced optical computing method for multiplexed data processing and encryption
Engineers at the University of California, Los Angeles (UCLA) have unveiled a major advancement in optical computing technology that promises to enhance data processing and encryption. The work is published in the journal Laser & Photonics Reviews......»»
Controlling magnetism with polarized light: Non-thermal pathway uses inverse Faraday effect
Intense laser pulses can be used to manipulate or even switch the magnetization orientation of a material on extremely short time scales. Typically, such effects are thermally induced, as the absorbed laser energy heats up the material very rapidly,.....»»
Study highlights tension between Canada"s climate and housing goals
Canada cannot simultaneously meet its targets for emission reductions and new housing unless there's a drastic change in construction practices, according to research from the University of Toronto's Faculty of Applied Science & Engineering......»»
Scientists achieve first intercity quantum key distribution with deterministic single-photon source
Conventional encryption methods rely on complex mathematical algorithms and the limits of current computing power. However, with the rise of quantum computers, these methods are becoming increasingly vulnerable, necessitating quantum key distribution.....»»
"Acceleration beats" shine bright light on a novel universal modulation regime in a semiconductor-based laser
Researchers at the Paul-Drude-Institute for Solid State Electronics (PDI) have observed a novel modulation regime characterized by the emergence of previously unseen "acceleration beats" in a modulated semiconductor-based laser......»»
Study finds political commitment in long-term climate policy key for effective EU emissions trading system
High policy credibility is crucial for carbon prices in the EU emissions trading system (EU ETS) to be high enough to efficiently incentivize emission reductions in the long term, a new study finds......»»
New device precisely controls photon emission for more efficient portable screens
Recently, a team of chemists, mathematicians, physicists and nano-engineers at the University of Twente in the Netherlands developed a device to control the emission of photons with unprecedented precision. This technology could lead to more efficien.....»»
Scientists say they can make zero-emission cement
Researchers on Wednesday said they were a step closer to solving one of the trickiest problems in tackling climate change—how to keep making cement despite its enormous carbon footprint......»»
The Artificial Intelligence Era Faces a Threat from Directed Energy Weapons
Autonomous and AI-enabled systems increasingly rely on optical and radio frequency sensors and significant computer power. They face growing vulnerabilities from directed-energy laser and microwave weapons.....»»
Observing mammalian cells with superfast soft X-rays
Researchers have developed a new technique to view living mammalian cells. The team used a powerful laser, called a soft X-ray free electron laser, to emit ultrafast pulses of illumination at the speed of femtoseconds, or quadrillionths of a second......»»
Canon imageClass MF654cdw review: a low-cost, high-quality color laser printer
Canon's imageClass MF654cdw is a high-quality color laser printer at a budget price, so we checked what tradeoffs were made to make it so affordable......»»
Researchers develop framework for databasing properties of crystal defects
Point defects (e.g. missing, extra or swapped atoms) in crystalline materials often determine the actual electronic and optical response of a given material. For example, controlled substitutions in semiconductors like silicon are the backbone of mod.....»»
New insights into the interaction of femtosecond lasers with living tissue
Nonlinear light microscopy has revolutionized our ability to observe and understand complex biological processes. However, light can also damage living matter. Yet, the mechanism behind the irreversible perturbation of cellular processes by intense l.....»»
Farm wastewater modeling shows footbaths are source of antimicrobial resistance
New research has mapped wastewater flows on farms and revealed where spikes in antibiotic resistant bacteria in slurry occur, showing that water from copper and zinc footbaths used by dairy animals can cause fluctuations......»»
How Lorelei and the Laser Eyes went from a small project to 2024’s most ambitious game
Lorelei and the Laser Eyes is a sprawling puzzle game, but developer Simogo originally set out to make something smaller than Sayonara Wild Hearts......»»
Researchers report structure for developing high-efficiency crystalline white organic light-emitting diodes
Organic light-emitting diodes (OLED) have emerged as a new generation of display technology. Organic crystalline materials possess superior thermal stability, chemical stability, and high carrier mobility, making them an ideal choice for developing l.....»»
Actin research shows how butterfly wings get their vibrant colors
The secret of how butterfly wings get their vibrant colors has been revealed in a new study. Using cutting-edge super resolution microscopy, researchers from the University of Sheffield and the Central Laser Facility have been able to investigate the.....»»