Articles tagged with Laser Light
Comprehensive exploration of living organisms, biological systems, and life processes across all scales from molecules to ecosystems. Encompasses cutting-edge research in biology, genetics, molecular biology, ecology, biochemistry, microbiology, botany, zoology, evolutionary biology, genomics, and biotechnology. Investigates cellular mechanisms, organism development, genetic inheritance, biodiversity conservation, metabolic processes, protein synthesis, DNA sequencing, CRISPR gene editing, stem cell research, and the fundamental principles governing all forms of life on Earth.
Comprehensive medical research, clinical studies, and healthcare sciences focused on disease prevention, diagnosis, and treatment. Encompasses clinical medicine, public health, pharmacology, epidemiology, medical specialties, disease mechanisms, therapeutic interventions, healthcare innovation, precision medicine, telemedicine, medical devices, drug development, clinical trials, patient care, mental health, nutrition science, health policy, and the application of medical science to improve human health, wellbeing, and quality of life across diverse populations.
Comprehensive investigation of human society, behavior, relationships, and social structures through systematic research and analysis. Encompasses psychology, sociology, anthropology, economics, political science, linguistics, education, demography, communications, and social research methodologies. Examines human cognition, social interactions, cultural phenomena, economic systems, political institutions, language and communication, educational processes, population dynamics, and the complex social, cultural, economic, and political forces shaping human societies, communities, and civilizations throughout history and across the contemporary world.
Fundamental study of the non-living natural world, matter, energy, and physical phenomena governing the universe. Encompasses physics, chemistry, earth sciences, atmospheric sciences, oceanography, materials science, and the investigation of physical laws, chemical reactions, geological processes, climate systems, and planetary dynamics. Explores everything from subatomic particles and quantum mechanics to planetary systems and cosmic phenomena, including energy transformations, molecular interactions, elemental properties, weather patterns, tectonic activity, and the fundamental forces and principles underlying the physical nature of reality.
Practical application of scientific knowledge and engineering principles to solve real-world problems and develop innovative technologies. Encompasses all engineering disciplines, technology development, computer science, artificial intelligence, environmental sciences, agriculture, materials applications, energy systems, and industrial innovation. Bridges theoretical research with tangible solutions for infrastructure, manufacturing, computing, communications, transportation, construction, sustainable development, and emerging technologies that advance human capabilities, improve quality of life, and address societal challenges through scientific innovation and technological progress.
Study of the practice, culture, infrastructure, and social dimensions of science itself. Addresses how science is conducted, organized, communicated, and integrated into society. Encompasses research funding mechanisms, scientific publishing systems, peer review processes, academic ethics, science policy, research institutions, scientific collaboration networks, science education, career development, research programs, scientific methods, science communication, and the sociology of scientific discovery. Examines the human, institutional, and cultural aspects of scientific enterprise, knowledge production, and the translation of research into societal benefit.
Comprehensive study of the universe beyond Earth, encompassing celestial objects, cosmic phenomena, and space exploration. Includes astronomy, astrophysics, planetary science, cosmology, space physics, astrobiology, and space technology. Investigates stars, galaxies, planets, moons, asteroids, comets, black holes, nebulae, exoplanets, dark matter, dark energy, cosmic microwave background, stellar evolution, planetary formation, space weather, solar system dynamics, the search for extraterrestrial life, and humanity's efforts to explore, understand, and unlock the mysteries of the cosmos through observation, theory, and space missions.
Comprehensive examination of tools, techniques, methodologies, and approaches used across scientific disciplines to conduct research, collect data, and analyze results. Encompasses experimental procedures, analytical methods, measurement techniques, instrumentation, imaging technologies, spectroscopic methods, laboratory protocols, observational studies, statistical analysis, computational methods, data visualization, quality control, and methodological innovations. Addresses the practical techniques and theoretical frameworks enabling scientists to investigate phenomena, test hypotheses, gather evidence, ensure reproducibility, and generate reliable knowledge through systematic, rigorous investigation across all areas of scientific inquiry.
Study of abstract structures, patterns, quantities, relationships, and logical reasoning through pure and applied mathematical disciplines. Encompasses algebra, calculus, geometry, topology, number theory, analysis, discrete mathematics, mathematical logic, set theory, probability, statistics, and computational mathematics. Investigates mathematical structures, theorems, proofs, algorithms, functions, equations, and the rigorous logical frameworks underlying quantitative reasoning. Provides the foundational language and tools for all scientific fields, enabling precise description of natural phenomena, modeling of complex systems, and the development of technologies across physics, engineering, computer science, economics, and all quantitative sciences.
Researchers from Hokkaido University have found that ultraviolet light reacts with nitrophenol to produce atmospheric nitrous acid, a key component of photochemical smog. This decomposition process occurs in real-time and involves the distortion of the nitrophenol molecule's shape under extreme UV light.
Researchers have developed a VUV laser system with a focal spot of <1 μm, enabling high-energy resolution (~0.3 meV) and sub-micron spatial resolution for angle-resolved photoemission spectroscopy (ARPES). This improvement allows for better visualization of electronic structures in novel quantum materials.
Researchers developed a microelectromechanical systems (MEMS) optical scanner that enables better road safety by adjusting the driver's visibility based on speed and traffic environment. The system provides improved visibility, especially for pedestrians, and reduces glare from oncoming vehicles.
Researchers from Far Eastern Federal University and international partners developed ceramic phosphors that can be applied in-ground and aerospace technologies. The new materials produce compact energy-efficient white light-emitting diodes (wLEDs) and high-power systems, with reduced operating temperatures.
Researchers from Utrecht University and TU Wien develop a method to calculate optimal light waves for precise measurement of invisible objects in complicated environments. This technology has potential applications in microbiology, computer chip production, and nanometer-scale imaging.
Scientists at Max Born Institute create new method for generating narrowband XUV laser pulses by employing four-wave mixing scheme. This enables applications in electron spectroscopy, resonant transitions, and coherent diffractive imaging.
Researchers perform an experiment that adds or subtracts a single phonon to a high-frequency sound field using laser light interactions. The team's findings show that subtracting a single phonon increases the average number of quanta, defying intuition. This result opens a new path for quantum science and technology with sound waves.
Researchers at NIST have developed a compact optical platform to cool atoms, enabling the creation of super-accurate atomic clocks and quantum devices. The miniaturized system uses flat optics and a metasurface to efficiently interact with and cool large collections of atoms.
Researchers have used lasers to create bubble microrobots that can form inseparable shapes and control their movement. The robots can manipulate small pieces into interconnected structures with unbreakable connections.
Researchers at KIST achieved a pulsed-laser repetition rate of 57.8 GHz by inserting a graphene resonator into a fiber-optic oscillator. This breakthrough overcomes the MHz-level limit and paves the way for significant increases in data transmission and processing speeds.
Researchers from Skoltech and UTMB have developed an optoacoustic sensor to measure water content in skin, a technique that can monitor swelling or dehydration. The method is safe, non-invasive, and provides high resolution, making it suitable for clinical applications.
A new class of crystalline material called avalanching nanoparticles (ANPs) overcomes the diffraction limit without heavy computation or a super-resolution microscope. ANPs enable real-time high-resolution bioimaging of cells' organelles and proteins, as well as ultrasensitive optical sensors and neuromorphic computing.
Researchers have developed a femtosecond laser with unprecedented precision and stability, allowing for the observation of chemical transformations inside cells and the creation of ultra-thin layers on microchips. The laser's harmonic mode locking system enables precise control over pulse frequencies, opening up new avenues for applica...
Scientists at the University of Tokyo have observed a direct impact of magnetic fields on biological magnetoreception in living cells. By measuring changes in flavin autofluorescence, they found that the presence of a magnetic field reduced the cell's ability to emit light.
Researchers developed a novel endoscopic technique, Linked Color Imaging (LCI), to improve detection of cancer in the upper digestive tract. LCI technology enhances contrast of mucosal changes by combining specific wavelengths of light, detecting neoplastic changes 1.67 times more frequently than conventional White Light Imaging.
A new method of distance measurement has been developed by researchers at Paderborn University, achieving precision 10,000 times better than established methods. This breakthrough could significantly improve applications such as LIDAR and GPS.
Researchers used X-ray laser to directly measure formation of polarons, fleeting distortions that affect material's behavior. The study reveals that polarons form large, expanding bubbles that travel along with electrons, potentially explaining why lead hybrid perovskites achieve high efficiencies in solar cells.
Researchers have developed a new method to enhance the sensitivity of quantitative phase imaging, enabling the observation of tiny particles in living cells without labels or stains. The technique, called ADRIFT-QPI, produces images with seven times greater sensitivity than traditional methods.
Researchers at the University of Pittsburgh took snapshots of light using ultrafast microscopy, stopping it to observe its behavior. They discovered that light vortices can cause transitions in solid state materials, generating topologically distinct materials.
An international team of scientists has developed a novel technique for a high-brightness coherent and few-cycle duration source spanning 7 optical octaves from the UV to the THz. This breakthrough enables future research on time-domain analysis of substances, opening new opportunities for multimodal measurement approaches.
Researchers at Aalto University developed a new way to break the reciprocity law by changing material properties periodically. This breakthrough could lead to efficient nonreciprocal devices, such as compact isolators and circulators, for next-generation communication systems.
Researchers developed a new type of hollow core optical fiber, known as nodeless antiresonant fiber (NANF), to overcome performance limitations in resonator fiber optic gyroscopes. The new gyroscope achieves significant improvements in stability, enabling precise navigation systems for various applications.
Researchers have developed a novel synthetic aperture microscopy method using digital micromirror devices, achieving high spatial resolution and fast imaging speeds. The technique enables the observation of subcellular dynamics and nanometric structures without harming living cells.
Scientists at EPFL demonstrate a state of vibration that exists simultaneously at two different times, showing entanglement between light and vibration. This finding creates a bridge between daily experience and the realm of quantum mechanics, paving the way for ultrafast quantum technologies.
A research team at POSTECH has successfully measured and controlled the phase of second-harmonic generation (SHG) in 2D materials, opening new possibilities for nonlinear spectroscopic control methods. The study uses heterobilayer materials to create light with twice the frequency of vibration and controlled phase.
Researchers at Stevens Institute of Technology have developed a chip-based photon source that's 100 times more efficient than any previous device, allowing the creation of tens of millions of entangled photon pairs per second. The new source uses nanoscale microcavities to create entangled photons with virtually no waste energy.
Researchers at the University of Jena have developed a light-emitting silicon alloy, paving the way for silicon lasers that could revolutionize optical data processing. The alloy's unique crystal structure enhances the probability of efficient photon emission.
Researchers have created a compact, high-brightness mid-IR-driven source combining a gas-filled anti-resonant-ring photonic crystal fiber with a novel nonlinear-crystal. The table top source provides a seven-octave coherent spectrum from 340 nm to 40,000 nm, outshining brightest Synchrotron facilities in spectral brightness.
Researchers have shown that a single layer of graphene can convert light into various colors through nonlinear interactions. The team used nanometer-sized gold ribbons to squeeze light into the graphene, producing strong optical nonlinearities.
Optical tweezers have been extended to trap nanoscale particles by exploiting a particular property of light diffraction at the interface between a glass and a liquid. The device uses 'Arago spots' and 'total internal reflection' to confine particles in a donut-shaped wave, enabling precise manipulation without physical contact.
Researchers at University of Fukui, Japan, create miniature laser-based device to project color HD video on the retina. The compact RGB scanning projector has potential applications in various fields including virtual and augmented reality, conferencing, surveillance, and remote-assisted surgery.
Researchers developed a compact laser-based sensor that accurately senses extremely low concentrations of benzene in real time, outperforming existing devices. The device detects trace benzene levels, including in parking garages and service stations, with higher sensitivity than conventional sensors.
Scientists have made a breakthrough in understanding the ultrafast motion of atoms and electrons, with implications for controlling materials through light. By observing the distortion of molecular structures and electron transfer, researchers can now distinguish between atomic motion and electronic dynamics.
A new laser-based method allows researchers to map the electronic structures of crystals at room temperature, revealing potential capabilities for solar cells, LED lights, and artificial photosynthesis. The technique also enables the design of novel semiconductor-based quantum devices.
The study enables the creation of highly specialized light-focusing abilities, increasing data-routing capability in computer chips and optical systems. The researchers' method will impact the manufacturing of complex optical components and advance personal computing.
Researchers have demonstrated a way to control nanoparticles to lase at low power, producing sharp signals for biosensing and bio-imaging. This breakthrough reduces tissue damage and improves the accuracy of sensing indicators, holding promise for early-stage disease detection.
EPFL researchers demonstrate nonlinear beam cleaning, enabling generation of high-energy, ultrashort pulses with single-mode beam quality. They achieve sub-100 femtosecond pulses with high pulse energy and low M2 value without external amplification in a compact setup.
Researchers at TU Wien have developed a new method to produce short, intense infrared laser pulses using tailor-made quantum cascade lasers. The technology can be easily miniaturized, enabling compact measuring instruments for detecting specific molecules in gas samples.
Researchers at INRS used the Advanced Laser Light Source facility to generate extremely short and intense laser pulses that are highly-stable in time and space. The discovery has significant technological impact, enabling compact high-power laser systems for industrial applications and advanced biomedical imaging.
A novel vertical-cavity surface-emitting laser design has been developed, combining multiple transverse coupled cavities to enhance optical feedback. This innovation extends the temporal bandwidth of VCSELs, enabling a modulation bandwidth of up to 100 GHz, beyond the known limit of relaxation oscillation frequency.
A new optical imaging technology called PANORAMA has been developed to detect and study nanoscale objects as small as 25 nanometers in diameter. This technology uses unscattered light to monitor changes in transmission and determine the target's characteristics, making it possible to view nanoparticles directly without labeling.
Researchers from Kyoto University have created a beam-scanning device using photonic crystals, eliminating the need for moving parts. The technology enables high-power, high-beam-quality two-dimensional beam scanning lasers with improved resolution and accuracy.
Researchers used a state-of-the-art atomic clock to narrow the search for elusive dark matter, setting new limits on ultralight dark matter's coupling strength. The study established constraints on the floor of normal fluctuations, providing sensitivity to cosmological models of dark matter and accepted physics theories.
Scientists at the University of São Paulo have developed a method to generate intense beams of light with quantum correlations, which can be used for high-precision metrology and information encoding. The new technology has potential applications in fields such as gravity wave detection and secure communication.
Researchers at University of Konstanz and Ludwig-Maximilians-Universität München develop a prototypical attosecond electron microscope (A-TEM) that enables visualization of light-matter interactions at attosecond speeds. This breakthrough can facilitate the exploration of atomic origins of light-matter interactions in complex materials...
Researchers at UCL have used laser beams to 'switch on' neurons in mice, showing how memories drive the brain's inner GPS system. The study uses an 'all-optical' approach to read and write activity in specific neurons, reactivating memories of a location where rewards were obtained.
Researchers from Kyushu University developed a technique that improves the resolution of fluorescence images of living cells using plasmonic metasurfaces. The metasurface, composed of self-assembled gold nanoparticles, enhances the focus of light-emitting molecules, resulting in high-resolution imaging capabilities.
Researchers have created a bio-based, water-resistant wood film that can emit and scatter light, offering a sustainable alternative to traditional lighting materials. The luminescent panel demonstrates excellent mechanical properties and can be used as cover panels for lamps, displays, and laser devices.
Researchers have designed novel linear nanomotors powered by laser light, enabling controlled movement and reducing complexity. The technology uses localized surface plasmon resonance to produce directional scattering, allowing for precise navigation.
Scientists create nanoscale silicon resonators for logic gates of light pulses, potentially leading to faster and all-optical computer switches. This breakthrough could bridge the gap between electronic and optical signals in computing.
Researchers at Princeton University create device that excites erbium atoms using laser light, allowing control of multiple atoms without spatial information. This enables study of rich quantum mechanical behavior and entanglement in atoms at tiny distances.
LaserNetUS, a high-power laser consortium including Institut National de la Recherche Scientifique, receives $18 million from the US Department of Energy. The funding will support user support and expand LaserNetUS operations for three years.
Researchers developed an optical neuron system using quantum cascade lasers, operating 10,000× faster than biological neurons. The system demonstrates behaviors like thresholding and spiking, with fine-tuning of modulation and frequency allowing control of time intervals between spikes.
Researchers created a new type of ceramic nanocomposite (Ho3+:Y2O3-MgO) that can be used in high-capacity lasers operating in the medium infrared range. The material has increased thermal and mechanical resistance due to its almost pore-free structure, allowing it to transmit over 75% of light in the medium IR wavelengths.
Researchers at Rice University and Politecnico University have demonstrated the first nanophotonic platform capable of manipulating polarized light 1 trillion times per second. The platform uses plasmonic metasurfaces to exploit ultrafast electronic mechanisms, enabling faster data transmission rates.
Scientists at NIST and the University of Maryland have developed a microchip technology that can generate a wide range of visible laser colors using near-infrared laser light. This approach enables precise control over wavelength, opening up new possibilities for applications in precision timekeeping and quantum information science.
Scientists have developed a simple method to comprehensively assess spectrometer performance within seconds using only incoherent excess noise. This approach enables high-quality visible light OCT imaging with improved spectral resolution uniformity, revealing new insights into the mouse photoreceptor layer.
Topological photonics explores discrete states of light, similar to Fock states of electrons. The connection between the Maxwell and Schrodinger equations reveals new topological phases, including a Haldane model for valley Hall effect.
Researchers at UC Davis have developed a new method to characterize and calibrate spectrometers using excess noise in light signals. This approach allows for faster and more accurate calibration, with results comparable to traditional methods in just a few seconds.
Researchers at ETH Zurich have developed a novel approach to frequency doubling in nonlinear crystals, utilizing disordered nanocrystals to achieve efficient light conversion. The method, which combines two seemingly irreconcilable approaches, enables wide-range frequency tuning and minimizes material usage.