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.....»»
First observation of the nuclear two-photon decay in bare atomic nuclei
For the first time, an international research team has succeeded in observing a two-photon decay on a so-called bare atomic nucleus from which the entire electron shell has been removed......»»
Researchers reveal parsec-scale radio emission properties of dual AGNs by multi-phase-center VLBI observations
Galaxy mergers play a crucial role in the cosmological evolution of galaxies. During galaxy merging, tidal torques can trigger the accretion and feedback of the central black holes in merging galaxies, forming dual active galactic nuclei (AGNs)......»»
Scientists develop new AI method to create material "fingerprints"
Like people, materials evolve over time. They also behave differently when they are stressed and relaxed. Scientists looking to measure the dynamics of how materials change have developed a new technique that leverages X-ray photon correlation spectr.....»»
Superlubricity study shows a frictionless state can be achieved at macroscale
The president of SUNY Polytechnic Institute (SUNY Poly), Dr. Winston "Wole" Soboyejo, and postdoctoral researcher Dr. Tabiri Kwayie Asumadu have published a paper titled, "Robust Macroscale Superlubricity on Carbon-Coated Metallic Surfaces." This pap.....»»
Prime Day printer deals: laser, inkjet and photo printers
Here, we have shared the best Prime Day printer deals to shop today! Get all-in-ones, ink jet, and more......»»
Integrating monitoring data to analyze greenhouse gas emissions from reservoirs in the Yellow River Basin
A study published in the journal Science China Earth Sciences integrates existing monitoring data to discuss the characteristics of greenhouse gas (GHG) emissions from reservoirs in the Yellow River Basin. While CO2 emission flux from reservoirs is l.....»»
This Brother printer is great, but here’s why you shouldn’t buy it
Brother's HL-L3280CDW color laser printer has a nice price, so I tested the quality, performance, and long-term value to see if it's right for you......»»
Quantum dot photon emitters violate Bell inequality in new study
A new study in Nature Physics demonstrates a novel method for generating quantum entanglement using a quantum dot, which violates the Bell inequality. This method uses ultra-low power levels and could pave the way for scalable and efficient quantum t.....»»
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.....»»