Articles tagged with Laser Light
Researchers have developed a digitally designed holographic optical element that can replicate the functions of bulky optics, enabling more people-friendly AR/VR devices. The approach overcomes a significant bottleneck in commercial success by incorporating collimating functions on the lens array itself.
Researchers at the University of São Paulo's Physics Institute have successfully entangled six light waves using an optical parametric oscillator. This achievement could lead to faster processing speeds and improve the feasibility of quantum computing by enabling the creation of systems with multiple entangled components.
Researchers from Konstanz and Munich have successfully directed and controlled ultrashort electron pulses using laser light cycles, enabling precise material studies in the femtosecond and attosecond range. This achievement has significant implications for ultrafast materials research and the production of intense X-ray flashes.
A group of scientists from the Niels Bohr Institute aim to improve gravitational wave detectors by incorporating a 'filter' made of cesium atoms, which can neutralize Quantum Back Action and increase accuracy. The development is expected to show proof of concept within three years.
Scientists at the University of Sussex have created a blueprint for airport scanners capable of detecting explosives using a single pixel camera and Terahertz electromagnetic waves. The innovative imaging concept, Nonlinear Ghost Imaging, produces high-accuracy images of objects' chemical composition, surpassing previous studies.
A team of Japanese scientists has demonstrated a method to produce novel light beams from synchrotron radiation, enabling the generation of X-ray vector beams. This breakthrough could pave the way for new applications in X-ray diffraction, scattering, and absorption/emission spectroscopy.
Researchers at Columbia University Irving Medical Center have discovered that UV light can kill drug-resistant bacteria, a major cause of infections around skin-penetrating medical devices. The study, published in PLOS ONE, suggests that far-UVC light delivered through optical fibers could be used to prevent catheter-based and drivelin...
UCSB researchers have developed a highly efficient genome editing method that offers complete spatiotemporal control, allowing users to target specific cells or regions within the cell. This approach enables precise and transient gene editing with minimal long-term effects on DNA.
A team of scientists has found direct evidence for surface-exposed water ice on the Moon, with patchy distribution and smaller abundance compared to other planetary bodies. The discovery was made using data from the Moon Mineralogy Mapper onboard India's Chandrayaan-1 mission.
A team of researchers has discovered a way to measure the effect of light momentum on materials, shedding new light on a 150-year-old mystery. The study reveals that light momentum is converted into force through elastic waves on mirrors.
A team of scientists has designed a D-shaped laser that regulates light emission patterns and eliminates instabilities, leading to stable beams. The unique cavity shape causes light to bounce off mirrors in an unpredictable manner, resulting in a stable light stream for high-powered applications.
A Yale-led research team has developed a new approach to stabilize high-power lasers by introducing chaotic cavities, reducing laser instabilities and promoting stable beam profiles. The innovative method is scalable to increasing power levels and can be applied to various types of high-power lasers.
Researchers at Purdue University have developed a method to produce multiple colors simultaneously on an electronic chip, enabling broader bandwidth for sensing and processing information. This breakthrough could lead to advancements in nanophotonics, bio-sensing, and imaging applications.
Researchers have developed a new technique using 'quantum chaos' to prevent optical filaments from forming in semiconductor lasers, leading to instabilities. The new system uses a D-shaped cavity to create a quantum chaotic landscape, disrupting the formation of self-organized structures and maintaining laser stability.
Researchers have developed nanoparticles that can be excited with ultralow-power laser light, emitting visible light for deep-tissue imaging. The findings hold promise for advanced imaging systems to pinpoint single cancer cells, guiding high-precision surgeries and radiation treatments.
Researchers used terahertz frequency quantum cascade lasers to study laser stabilisation process, measuring wavelength changes in femtoseconds. This ultrafast detection capabilities provide unprecedented levels of detail, leading to more efficient devices and systems.
MIT researchers developed novel optics that capture images based on the timing of reflecting light inside the optics. This allows for new capabilities in time- or depth-sensitive cameras, such as capturing a trillion-frame-per-second video. The new optics architecture includes semireflective parallel mirrors that reduce focal length by...
Researchers use holographic technology to create complex knots in light, revealing new insights into the topology of knotted fields. The study's findings could lead to the creation of new devices processing information through customized light structures.
Researchers developed a new photosensitizer using gold nanorods to enable color printing in selective laser sintering. The material is cost-effective for large-scale production and produces brightly colored objects.
Researchers at NIST have developed a silicon chip that uses light instead of electricity to precisely distribute optical signals across a miniature brain-like grid. The chip enables complex routing schemes necessary to mimic neural systems and has demonstrated uniform output with low error rates.
A team of international researchers has developed a lasing system that produces phonons, the energy products of oscillation, or vibration. By tuning the system to create resonance, they can trigger mechanical movement that generates an acoustic wave. This breakthrough could lead to new medical and materials science applications.
Researchers have developed a quantum random number generator using a millimeter-scale chip that measures phase fluctuations from a laser diode, generating high-speed random numbers with low power consumption. The device enables real-time encryption and secure data transmission, overcoming vulnerabilities of existing algorithms.
Researchers at NIST demonstrate a new method for visualizing objects engulfed by large gas fires using ordinary blue light. This technique improves the accuracy of material testing by reducing image distortion and enhancing signal clarity. The study has potential applications in fire-resistance standards testing and could lead to more ...
Researchers at Tufts University have developed magnetic elastomeric composites that can flex, grip, release or rotate when exposed to lasers or sunlight. The materials can exhibit complex movements like crawling, walking or swimming and can be triggered and controlled wirelessly using light.
The team has generated rapid single-photon light pulses, which cannot be intercepted without disturbing them. This enables secure data transfer using light passed along fibre optic cables, making it ideal for environments where security is paramount.
Scientists at NUS have discovered a practical way to observe and examine the quantum effects of electrons in topological insulators and heavy metals. This breakthrough enables the development of advanced quantum computing components and devices, potentially answering some of the world's toughest questions in finance and physics.
Tiny nano-sized crystals of salt can store digital information using light, offering a promising alternative to traditional magnetic and solid-state data storage. The technology demonstrates rewritable data storage in crystals that are hundreds of times smaller than visible to the human eye.
Researchers at OIST have created a new sensor design using hollow glass bubbles to detect tiny particles, increasing sensitivity and efficacy. This technology has potential applications in detecting toxic molecules in water and blood-borne viruses in rural areas.
The KAIST research group created photonic capsules that can be injected into any target volume, exhibiting omnidirectional laser emissions. The capsules contain cholesteric liquid crystals (CLCs) with helical nanostructures, which reflect circularly-polarized light and enable wavelength-tunable lasing.
Researchers at GFZ German Research Centre for Geosciences have developed a new method using fiber-optic cables to detect earthquakes and other ground movements. The technique reveals structural features in the underground with unprecedented resolution, outperforming existing seismological networks worldwide.
Researchers have developed a new approach to invisibility cloaking based on manipulating light frequency, making objects invisible under broadband illumination. This technology could be used for secure data transmissions, sensing, and telecommunications.
Researchers at the Institute for Basic Science discovered that asymmetric apertures can cause astigmatism in microscopes, leading to degraded image resolution. By correcting for this effect, they improved the technique of line-temporal focusing microscopy, achieving unprecedented resolution in biological structures.
Researchers at Sandia National Laboratories have developed a tiny synthetic material that can mix two laser pulses to produce 11 new colors, offering potential applications in fields such as archaeology, extraterrestrial life detection, and fiber-optics communication. The metamaterial's efficiency is currently low, but further work aim...
A team at TUM has succeeded in generating ultrashort electric pulses on a chip using tiny plasmonic antennas, operating above the surface and reading them in again. This breakthrough closes the terahertz gap, enabling frequencies up to 10 terahertz.
Scientists at Tel Aviv University develop a laser beam that traps and moves particles in specific directions using Archimedes' screw-inspired technology. The rotation of the beam determines the direction of particle movement, overcoming a major challenge in laser optical trapping.
A QUT-led project, funded by the Australian Research Council, is developing 'on-demand visible light degradable dental materials' to enable removal of bonded material without mechanical force. This innovation could make dental visits less painful and allow for more flexible dental applications.
Researchers have found a way to convert nanoparticle-coated microscopic beads into lasers smaller than red blood cells. These microlasers can constantly and stably emit light for hours at a time, even when submerged in biological fluids. The innovation opens up the possibility for imaging or controlling biological activity with infrare...
A team of researchers at Chalmers University of Technology and Purdue University has developed a microcomb that can replace dozens of high-performance lasers, enabling faster and more power-efficient optical communication links. The technology uses a tiny optical cavity to generate sharp frequency lines, which have unique properties th...
Researchers at Yale University have created a new type of silicon laser that uses sound waves to amplify light, enabling faster and more efficient data processing. The innovative design maximizes light amplification using a special structure developed in the Rakich lab.
University of Adelaide researchers have developed a laser that can measure gas composition in under one second with high accuracy and precision. The device uses patterns of light absorption to differentiate between different gas compounds, mimicking the sensitive nose of a bloodhound.
Researchers have devised a method to study how light affects materials, shedding light on the fundamental laws governing electron-light interactions. The new approach enables better understanding of material behavior, which can be applied to improve devices such as optical sensors and photovoltaic cells.
A team of physicists has demonstrated a way to confine light in a waveguide array, making it insensitive to defects. This innovation could lead to cheaper and more efficient photonic devices, such as lasers and solar cells, by reducing material imperfections.
Researchers at MIT have devised a new method for enhancing the interaction between light and matter, which could lead to more efficient solar cells that collect a wider range of light wavelengths. By slowing down light and controlling its frequency, they can also create tunable color LEDs with fully tunable emissions.
Researchers have developed a new route to molecular modelling using photonic quantum technologies, which could lead to more efficient pharmaceutical developments. The method simulates the motion of atoms within molecules at the quantum level, allowing for a frame-by-frame reconstruction of atomic motions to create a virtual movie.
Researchers have developed molecular nanoswitches that can switch between two states using an applied voltage, enabling the development of novel electro-optical devices. This breakthrough could replace silicon-based components with organic molecules, reducing component sizes in electronics.
A new prototype for a portable instrument capable of early-stage malaria detection has been developed by researchers at the University of Southern California. The device uses magnetic properties of a parasite byproduct to detect all malaria strains, making it suitable for low-resource environments.
A new approach to injecting light into silicon microdisks enhances the performance of chip-based biosensors, leading to more sensitive detection of diseases. The end-fire injection technique offers improved robustness and reduced cost, paving the way for commercial applications.
Researchers optimize system to drive two-electron chemical reactions, significantly improving efficiency over one-electron reactions. The discovery enables the conversion of CO2 into liquid fuels, paving the way for practical carbon-recycling systems.
Researchers at Kobe University have discovered a Möbius aromatic molecule that exhibits strong antiaromatic properties when exposed to light. The twist in the molecule's structure allows for high energy levels and magnetism, which could be utilized in eco-friendly organic devices such as solar cells and electroluminescent elements.
Using Raman spectroscopy, researchers have followed electrons through individual cable bacteria and found that voltage loss prevents efficient functioning beyond 3 cm into the sediment. The bacteria can distribute energy between cells using cytochromes, but lose electrical potential when electrons are unloaded to oxygen.
Scientists at University of Southern Denmark create photonic quantum memory allowing manipulation of light on nonlinear level. They successfully demonstrate novel method to subtract a single photon from an optical beam, enabling future applications in quantum information science.
A team of UC Santa Barbara scientists has developed a miniature, energy-efficient optical frequency synthesizer that can be integrated onto silicon photonic integrated circuits. The device can tune over 50 nanometers and deliver a frequency stability of 7 x 10-13 after one second of averaging, matching that of the input reference clock.
Researchers have developed a method to study the interaction between light and twisted molecules as they transition from left- to right-handed versions. The study reveals that each route leads to different behavior, with potential applications in improving telecoms component design.
Scientists have successfully created a fast, tunable, and stable nanoparticle-array laser, enabling ultrafast lasing dynamics with short and rapidly appearing laser pulses. The study showcases promising potential for all-optical switching and sensing applications.
Researchers at Harvard have discovered a new phenomenon in quantum cascade laser frequency combs, enabling devices to act as integrated transmitters or receivers for efficient information encoding. This breakthrough has the potential to increase Wi-Fi capacity and pave the way for faster data transfer rates.
Researchers at Rice University have discovered exceptional points in a unique material, enabling continuous tuning of light and matter coupling. This breakthrough may lead to novel quantum technologies like advanced information storage and one-dimensional lasers.
Researchers at UC Davis developed a new technique using conventional digital camera technology to measure brain blood flow. The method, called interferometric diffusing wave spectroscopy, boosts the signal to detect fluctuations in blood motion, providing valuable information about blood flow.
The new approach uses flat, artificial material composed of nanostructured optical elements to control and detect mid-IR waves, enabling cheaper, flatter, and more efficient detectors for night vision, biomedical sensing, and free-space communication. The devices can transmit up to 80% of mid-IR light with high efficiency and are made ...
Researchers embedded graphene in a photonic crystal to enhance its light-absorbing capabilities. By varying the external temperature, they can tune the material's optical characteristics, leading to potential applications in light sensors and ultra-fast lasers.
Scientists at NIST and partners developed a miniaturized device that generates precise frequencies of light, tracing back to an international measurement standard. The breakthrough reduces the size of optical frequency synthesizers from tabletop instruments to three silicon chips.