Articles tagged with Lasers
Researchers have developed a new approach to precisely count photons from 0 to over 9,000 individual photons, bridging the gap between single-photon measurements and high-sensitivity optical power meters. The new multiplexed detector system uses superconducting nanowire single-photon detectors with multiplexing to create 1,024 detectio...
Researchers developed an ultrafast all-optical biomimetic encoder for spiking neural networks, achieving high-throughput computation and precise fiber-compatible encoding. The system reaches 94.1% classification accuracy for handwritten digit recognition and demonstrates scalability for diverse real-life signals.
A team of researchers from Texas A&M University and Rice University created an ultra-hard diamond composite that can withstand extreme shock and mechanical stress. Upon impact with hypersonic projectiles, the composite transforms into graphite, a softer material that acts as a shock absorber. This discovery could lead to the developmen...
Scientists investigate how ultrashort laser pulses can be used to slice diamond, with potential applications in optics, semiconductors, and power electronics. The study reveals that diamonds produced via different methods respond differently to laser treatment, and a new slicing method can create large-area diamond substrates.
Researchers capture radical positions and motion on 100-picosecond timescale using time-resolved X-rays, revealing radical behavior varies by neighboring molecule. The findings provide new insights into reaction selectivity and could lead to more precise production of effective new drugs and high-performance materials.
A metalens photoacoustic microscope can switch focus with voltage, enabling deeper imaging of biological structures. The system achieves an axial imaging range of approximately 1.2 mm and high spatial resolutions for visualizing microscopic vascular structures.
A new manufacturing method enables the creation of flexible devices that can crawl, move, and shield electromagnetic interference. The technique uses laser-induced selective metallization and magnetic liquid metal to form precise metallic patterns on complex 3D-printed polymer surfaces.
A new photonic chip developed by TDK Corporation has improved the efficiency of smart-glasses displays by switching laser colors faster and using less power. The chip's voltage-controlled design achieved a modulation bandwidth of 10 GHz, sufficient for 4K resolution, and reduced power consumption by over 75 percent.
Researchers at Bar-Ilan University developed a new X-ray imaging technique that can map 3D chemical composition 43 times faster and using 97% less data. This method uses a structured X-ray pattern to reconstruct information from compressed data, enabling faster imaging and potential applications in materials science, biology, and geology.
Researchers have developed an affordable, open-source air quality monitoring device for wildlife, tracking particulate matter and providing insights into smoke exposure and behavior. The device can be attached to animal collars, filling gaps in data and delivering health insights for people exposed to smoke.
Scientists have developed a method to harness steam cushion to propel boiling droplets uphill and around curves without a single moving part. The technique uses intentional misalignment of ultrafast laser beams to carve microscopic ramps onto metal surfaces, creating a directional engine.
Researchers have successfully demonstrated a technique to produce a plasma beam antenna capable of transmitting radio waves using a laser. The antenna is tunable and can be controlled to sweep a range of frequencies, making it a valuable tool for applications such as space exploration and satellite technologies.
Researchers developed an AI-guided laser technique to carve micro-pyramids for robots to sense soft surfaces gently. The technique enables the creation of flexible conductive skins with high sensitivity and linearity, outperforming conventional designs.
Scientists developed laser-carved microvalves to protect fragile brain catheters from backflow, enabling smooth delivery of therapies. The valves regulate fluid flow through geometry without moving parts, suppressing reverse pressure surges by up to 82%.
Researchers create powerful optical device with layered semiconductor and metasurface, enhancing nonlinear frequency conversion and enabling efficient light mixing and transformation. The device has potential applications in telecommunications, quantum communication, and photonic quantum computing.
Researchers measured how skin pigmentation affects laser energy required to cause visible skin injury, finding that darker skin requires less energy to reach injury threshold. The study provides quantitative evidence to help improve future laser safety guidelines and support safer optics-based technologies.
Scientists at MIT have shown that a neutrino laser, proposed to produce a concentrated beam of neutrinos, is impossible due to recoil and fermionic nature. The research demonstrates that the concept, previously thought to be plausible, is fundamentally flawed.
The new device operates in the strong light–matter coupling regime, allowing researchers to study nonlinear polariton interactions. The platform makes organic laser devices more accessible for studying polariton interactions.
Researchers at the University of São Paulo have developed an algorithm for optimal pruning using LiDAR technology, which creates a detailed 3D model of tree architecture. By simulating wind forces on these models, they can identify vulnerable branches and recommend precise cuts to improve tree stability.
A team of researchers from Chiba University developed a method to monitor laser ablation in real time by detecting tiny push-back forces during laser cutting. By tracking the recoil force, they can sense depth and detect completion in real time, allowing for precise control over the process.
Researchers created microspheres with twisted-bipolar molecular configuration, enabling angle-selective optical resonance and laser oscillation. The resulting emissions mimic Saturn's rings, showcasing directional control of light in microscopic spaces.
Researchers demonstrated a dual-use laser system capable of wirelessly transmitting power over long distances and rapidly transitioning to perform defensive missions. The test showcased the system's ability to provide remote power delivery while maintaining its original mission as a directed-energy defense capability.
Scientists at UC Riverside developed a new method to help LIGO detect weaker gravitational-wave events by measuring heat-induced distortions in mirrors. The technique combines thermal imaging with existing wavefront measurements and computer models, enabling the observatory to improve its sensitivity and detect more distant events.
Researchers at Adelaide University developed a laser-based technology to detect toxic methanol in sealed spirit bottles, even through colored glass. The system uses Raman spectroscopy to identify the unique chemical 'fingerprint' of a liquid through its packaging.
Researchers used trans-tympanic infrared laser stimulation of the cochlea to evoke reliable auditory-guided behaviour in awake animals, without invasive procedures or genetic modification. The study found that laser-evoked perception was processed through auditory pathways and could be controlled by changing radiant energy.
The University of Rochester-led NSF STELLAR Engine launches to strengthen US competitiveness in global markets by advancing lasers and laser application research. The project aims to bring New York laser research, development, and manufacturing to a scale that can compete globally.
Researchers at KAUST have developed a system that uses tiny laser devices to generate unique digital fingerprints, verifying device identity without traditional passwords or security keys. The technology combines with AI to authenticate fingerprints instantly, offering a faster and more secure alternative for large-scale digital networks.
Researchers developed a perovskite/In0.47Ga0.53As thin-film heterojunction to create high-sensitive DUV-SWIR photodetectors with optimal stability and performance. The device achieved 98.9% retention of initial performance after 30,000 cycles.
Researchers at WVU are developing new laser-based techniques to observe plasma behavior in unprecedented detail, allowing them to examine how charged particles and energy move between plasmas and material surfaces. This study could lead to improved understanding of plasma sheaths and their role in surface wear and material lifetime.
Physicists at UC Berkeley introduce phase contrast to electron microscopy, enabling clearer images of small molecules and structures inside cells. The laser phase plate enhances cryoelectron microscopy, overcoming signal-to-noise limitations and paving the way for new drug discovery.
Researchers at Biohub and UC Berkeley have developed a laser phase plate that dramatically improves contrast in cryo-electron microscopy images, allowing scientists to see small molecules and interactions within human cells. The device uses a laser 100 million times brighter than the Sun and is expected to revolutionize structural cell...
The winning research article integrates evolutionary algorithms with nonlinear laser dynamics to establish a novel framework for programmable photonic states. It has strong implications for optical information processing and next-generation communication technologies.
The EPFL team has developed an integrated ultrafast laser that rivals table-top femtosecond lasers, delivering pulses as short as 147 femtoseconds. This breakthrough uses the Mamyshev oscillator design, which is well-suited to photonic chips and can be manufactured at wafer scale.
A new UV dual-comb spectrometer detects harmful gases with unrivalled accuracy and sensitivity, enabling fundamental insights into formaldehyde's properties. The compact design makes it suitable for mobile measurements in cities and industrial areas.
Researchers discovered curcumin's ability to stabilize microscopic ceramic parts by physically screening stray light and neutralizing erratic energy sparks. This approach enables the production of complex, ultra-lightweight components for advanced technologies.
Murnane recognized for pioneering ultrafast laser technology and XUV science, as well as exceptional mentorship and leadership. She has made seminal contributions to the field of optics with over 25 years of international leadership.
A new approach enables computers and machines to capture images at higher resolution and faster speed, making it impervious to reflective surfaces. The technology uses a virtual screen created by repurposing the surroundings of specular objects.
Dr. Yannik Zobus's LASE-FUSE project aims to develop a comprehensive, modular simulation framework for fusion laser systems, enabling holistic modeling and virtual optimization of complex systems. The project will receive three million euros in funding over five years through the 'Fusionstalente' program.
Researchers developed tiny flexible lasers that can measure forces inside living cells, enabling insights into biological processes such as early development and tumor progression. The micro-lasers exhibit mechanical stiffness similar to living cells and can measure forces up to 50 nanonewtons.
Researchers leveraged a surprise discovery to devise a new bioimaging method that captures 3D images of the human blood-brain barrier 25 times faster than existing technology. This technique enables scientists to test whether new drugs for neurodegenerative diseases reach their targets in the brain.
A team of physicists has discovered a way to boost the intensity of high-power laser light, opening up new possibilities for experiments in quantum electrodynamics. The breakthrough uses an unusual process to create extremely bright ultraviolet light, which can be focused into a tiny point creating immense energy concentration.
Researchers have developed a unified mathematical model explaining two types of 'breathing' solitons in ultrafast lasers, overcoming decades-old puzzle. The new framework accurately predicts complex behaviors and reveals underlying mechanisms.
The device exhibits outstanding performance across a broad optical spectrum, with high responsivity and specific detectivity. Its polarization-sensitive detection capability enables the direct deciphering of light's polarization state without external filters.
Researchers develop fluoride-engineered perovskite nanocrystal glass for high-efficiency, full-color emission and ultra-high-resolution holographic displays. The glass matrix enables stable and efficient photoluminescence of PNCs, driving the creation of high-quality dynamic displays.
Researchers explore new design strategies for metasurfaces and BICs, enabling scalable light control and efficient optoelectronic platforms. These advances have practical implications for applications in lasing, sensing, nonlinear optics, wavefront shaping, and imaging.
A team of researchers developed a machine learning framework to optimize laser settings for printing crack-susceptible superalloys. The algorithm reduced internal crack density by 99% and increased the metal's high-temperature strength, surpassing traditional cast components.
A new method creates flexible microsupercapacitors on vegetable-tanned leather using a CO2 laser, enabling eco-friendly and durable energy storage. The technology has potential applications in wearable electronics, smart clothing, and skin-mounted sensors.
A new class of ultra-high strength and ductility steel has been created using machine learning, achieving a rare balance of extreme strength and ductility. The resulting metal resists corrosion and degrades slowly in salt-water tests.
Researchers developed a new way to generate stable signals of light using microscopic ring-shaped devices, enabling the production of optical frequency combs. This technology has the potential to simplify system design and improve efficiency in high-speed optical communications for data centres.
Researchers from UCSB and UMass Amherst successfully integrated stabilized laser chips with a room temperature trapped ion qubit, enabling compact and portable quantum systems. This breakthrough paves the way for applications in quantum sensing, computing, and fundamental science.
Researchers at the University of Rochester have developed a squeezed phonon laser that precisely controls individual particles of vibration or sound, allowing for accurate measurements of gravity and other forces. This technology has the potential to create more accurate, 'unjammable' navigation systems without relying on satellites.
Researchers have created a dark, rubbery film that combines physical textures with light-absorbing nanotubes to keep surfaces ice-free at -50 °C. The film operates using a two-tier defense mechanism, providing both passive and active anti-de-icing capabilities.
Researchers used microwave-based 3D printing to create ceramic components with near-zero porosity and improved strength. The hybrid technique eliminates microscopic holes and traps gas bubbles, allowing for more bending force before breaking.
Physicists at the University of Colorado Boulder have demonstrated a new kind of vacuum ultraviolet laser that is 100 to 1,000 times more efficient than existing technologies. The device could enable scientists to observe phenomena currently out of reach, such as following fuel molecules in real time as they undergo combustion, spottin...
A team of researchers from SASTRA Deemed University demonstrates a fiber-based method for compressing mid-infrared laser pulses into ultrashort, low-noise bursts efficiently. The system reduces input power from kilowatts to 80 watts, improving energy efficiency and thermal stability.
Researchers at Politecnico di Milano and CNR have developed a new ultrafast computer technology controlled by light, potentially hundreds of times faster than traditional electronics. The technology manipulates the state of electrons in matter using oscillating light, enabling operations at rates above 10 terahertz.
Researchers at the University of Colorado Boulder have developed high-performing optical microresonators that can trap light and build up its intensity. By guiding light smoothly through the resonator, they dramatically reduced light loss, allowing photons to circulate longer and interact more strongly inside the device.
A clinical trial has shown that a novel cooled laser focal therapy device can effectively treat prostate cancer with minimal side effects. The treatment provided similar cancer-related outcomes to traditional methods but with an improved safety profile and low rates of incontinence.
Researchers at the University of Rochester create a new process to turn ordinary metal tubes unsinkable by etching micro- and nano-pits on their surface, making them superhydrophobic. The tubes stay afloat in water, even when damaged or submerged for extended periods.
Researchers developed a unified framework to measure spacetime fluctuations, enabling clear targets for experiments. The study provides measurable signatures for different categories of fluctuations, expanding the possibilities for testing quantum-gravity predictions.