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.
A team of physicists successfully transported light stored in a cloud of ultra-cold rubidium-87 atoms over 1.2 millimeters using an optical conveyor belt. The controlled transport process has minimal impact on the stored light's properties, enabling potential applications in quantum communication and computing.
The research team developed a new ultrafast fiber laser that produces an average power of over 10 kW without significant degradation in beam quality. This technology paves the way for industrial-scale materials processing and visionary applications such as space debris removal.
Researchers developed tiny optically powered machines that self-assemble and can manipulate tiny cargo for applications like nanofluidics and particle sorting. The machines use circularly polarized light from a laser to create a nanoparticle array acting like a gear, influencing nearby particles to orbit the array.
A new technique realizes PT symmetry in a single spatial resonator by manipulating polarization-dependent response, enabling effective suppression of sidemodes and stable single-mode lasing. The proposed polarimetric PT symmetry concept opens avenues for non-Hermitian photonic systems with various optical parameters.
Scientists at the University of Jena have developed a novel material platform by integrating 2D materials with glass fibers, enabling novel applications in sensors and non-linear optics. The breakthrough allows for the direct growth of 2D materials on optical fibers, overcoming laborious transfer processes.
Researchers at the Technion-Israel Institute of Technology have developed a floating laser resonator that breaks records in resonance enhancement. The device amplifies light power by an astonishing 10 million watts, equivalent to a large neighborhood's electricity consumption.
Researchers at EPFL have developed a novel deposition method that enables the creation of highly efficient and stable black-phase FAPbI3 perovskite solar cells. The new method, which uses vapor-assisted deposition, overcomes the stability issues associated with traditional methods, resulting in power-conversion efficiencies of over 23%.
Researchers at Chalmers University of Technology have developed a novel concept for laser-based communications using an almost noiseless optical preamplifier in the receiver. This results in an unprecedented receiver sensitivity of one photon-per-information bit at a data rate of 10 gigabits per second.
A new approach uses photoacoustic tomography to capture 3D images of finger veins, enabling levels of specificity and anti-spoofing previously not possible. The method achieves 99% accuracy in correctly accepting or rejecting identities.
The new extreme ultraviolet facility allows for investigation of time-dependent phenomena and reveals details of biological or physical samples with unprecedented clarity. It offers ultrashort pulses with high frequencies, useful for probing fast phenomena and investigating the structure and chemical properties of matter.
A landmark discovery at New York University has developed a method to create colloids that crystallize into the diamond lattice, enabling cheap and reliable fabrication of 3D photonic crystals for optical circuits. This breakthrough could lead to lightweight high-efficiency lasers, precise light control, and new materials for managing ...
Researchers at NIST have developed a system that can reliably detect even the faintest signal pulses using quantum physics, enabling record-low error rates and reducing energy requirements. The system uses novel receiver technology to process extremely weak signals with up to 16 distinct laser pulses encoding four bits of data.
Researchers led by David Pine have devised a new process for the reliable self-assembly of colloids in a diamond formation, which could lead to cheap, scalable fabrication of colloidal diamonds. This breakthrough discovery holds promise for advanced optical technologies, including high-efficiency lasers and precise control of light.
A team of scientists has developed a free-space optical transmission system that relies on an optical amplifier without excess noise, achieving unprecedented error-free sensitivity of one photon-per-information-bit at 10.5 Gbit/s. The system operates at room temperature and is scalable to higher data rates.
A new microendoscope combining photoacoustic and fluorescent imaging has been developed, enabling the measurement of blood dynamics and neuronal activity simultaneously. This innovation could advance our understanding of the brain's structure and behavior in specific conditions.
Researchers at MTU and Argonne National Laboratory have developed a new mechanism to improve optical signal processing, enabling the fabrication of smaller devices. The study reveals an unexpected phenomenon called optical nonreciprocity, which enhances magneto-optic response in iron garnet films.
A new spectrometer uses dual-comb spectroscopy to measure spectra in mere microseconds, enabling real-time biological imaging and machine vision applications. The device can analyze gases and solids at high speeds, making it ideal for applications like explosion analysis and chemical signatures capture.
Researchers have developed an approach to create electrically driven nanolasers for integrated circuits, enabling coherent light source design at the nanoscale. This breakthrough could lead to ultrafast optical data transfer and potentially create a 1,000-core processor that is virtually 100 times faster than its counterpart.
Researchers at Skoltech have developed a method to synthesize artificial solid-state crystal structures using only laser light, creating arbitrarily shaped and reprogrammable lattices for exciton-polaritons. This allows for the study of dissipative many-body quantum physics in a unique lattice environment.
A Harvard team has successfully cooled a six-atom molecule to just above absolute zero using laser light, marking the first time such a complex molecule has been achieved. The breakthrough opens up new avenues of study in quantum simulation and computation, particle physics, and quantum chemistry.
Researchers develop novel approach for efficient generation of coherent vibrations using semiconductor structures. The phonon laser operates in the tens of GHz range and is based on Einstein's predictions for Bose-Einstein condensates of coupled light-matter particles.
Researchers at Stanford University have developed a system that can reconstruct three-dimensional hidden scenes based on the movement of individual particles of light. This technique complements other vision systems and is more focused on large-scale situations, such as navigating self-driving cars in fog or heavy rain.
Researchers created a compact and ultrafast high-power yellow laser with excellent beam quality, filling the need for practical yellow light source emitting ultrafast pulses. The laser's wavelength range is highly absorbed by hemoglobin in blood, making it useful for medical treatments, dermatology, and eye surgery.
Researchers at ORNL developed a quantum microscope that measures signals with sensitivity better than classical limits, revealing fine details hidden by noise in microscopy signals. The approach uses squeezed light to reduce noise and achieve higher signal-to-noise ratios.
Scientists have successfully moved electrons in an organic superconductor by irradiation of ultrashort laser pulses, generating a polarized net current. The observed effect is attributed to scattering-free current, sensitive to superconducting fluctuations, with potential applications in ultra-fast computing and understanding microscop...
Researchers have successfully overcome the phenomenon known as lasing death in quasi-2D perovskites by managing triplet excitons. By incorporating an organic layer to hold triplets in a low energy state, continuous lasing was achieved under constant optical excitation.
Researchers have developed a new method for creating multicolor single-mode microlasers capable of emitting over the full visible spectrum. The lasers are achieved through heterogeneously coupled cavities constructed with three spherical microcavities and distinct gain media.
Researchers developed a precise method to measure ultrafast magnetization changes in materials by observing emitted terahertz radiation. The technique enabled the detection of an acoustically-driven ultrafast magnetization signal, confirming its accuracy and sensitivity.
Researchers at the University of Central Florida have developed a method to generate attosecond pulses using industrial-grade lasers, making it more accessible to scientists from various disciplines. This breakthrough could lead to new applications in power generation, chemical- and biological-weapon detection, and medical diagnostics.
Researchers at Stanford University have created nanostructures that can slow down and redirect light, allowing for new technologies such as quantum computing, virtual reality, and biosensing. These 'high-Q' resonators have demonstrated quality factors up to 2,500, enabling applications like detecting COVID-19 antigens and antibodies.
Researchers developed a new instrument to measure tiny light-evoked deformations in individual rods and cones, offering potential for earlier detection of retinal diseases. The system combines high-speed OCT imaging with adaptive optics technology to capture photoreceptor responses, paving the way for improved diagnosis and treatment.
Scientists create hierarchical assembly of dye molecules in a host-guest hybrid metal-organic framework to achieve up to three-wavelength single-mode polarized lasing. The resulting three-color single-mode lasing has a large wavelength coverage of ~186 nm and a low threshold of ~1.72 mJ/cm2.
A new design for light-emitting diodes (LEDs) developed by NIST scientists achieves a significant increase in brightness and the ability to create laser light, overcoming a long-standing limitation in LED efficiency. The device shows an increase of 100 to 1,000 times in brightness over conventional tiny LEDs.
Scientists have successfully applied optogenetics to higher plants, using blue light to trigger electrical excitation and simulate plant stress responses. This allows for the non-invasive investigation of cellular communication pathways and the analysis of membrane potential waves.
Physicists have created a new method to study previously invisible quantum states of electrons using optical vortices. By combining conventional laser beams with swirls of light, researchers can detect the properties of emitted photoelectrons and gain insights into material structure and interaction with light.
Researchers have developed a new type of laser beam that doesn't follow long-held principles about how light refracts and travels. The beams, known as spacetime wave packets, can be arranged to behave in the usual manner, not changing speed at all, or even speeding up in denser materials.
Researchers have developed a new method to detect algae and measure key properties in the ocean's depths using laser-based lidar. The technique allows for measurements up to three times deeper than satellites, shedding light on ocean biology and its role in climate.
A team of international researchers developed propagation-invariant light fields using caustics that do not change during propagation. This breakthrough enables new applications in high-resolution microscopy, material processing, and multidimensional signal transmission.
Black phosphorus has potential for emerging devices, including medical imaging and environment monitoring, thanks to its versatility and manipulation as a 2D material. The material's ability to tune electron energy levels makes it suitable for electro-optic modulation, which is essential for faster computing and data communication.
A new study using optical tweezers reveals the sensitivity of photoreceptors to mechanical stimuli, opening up new questions on their function. The researchers detected specific molecules sensitive to mechanical stress and observed variations in electrical signals.
Scientists from IPC PAS develop holographic OCT tomography, capturing cornea in a fraction of a second with high resolution, without contact or anesthesia. This breakthrough technology enables sharper images even with micro-movement of the eye, revolutionizing diagnosis of eye diseases.
Researchers at Tomsk Polytechnic University have developed a new method to significantly increase the operation range and stability of optical tweezers. This technology uses dielectric particles to form a photonic jet, which acts as a trap or tweezers, allowing for more precise control over micron-sized objects.
The NIST researchers developed a portable laser-based system to test the effectiveness of different wavelengths of UV light against various microorganisms. The study found that narrower wavebands were more effective in inactivating germs, with some unexpected results.
Researchers at the University of Tokyo have created a simple device to convert circularly polarized visible laser light into circularly polarized vacuum ultraviolet light, twisted in the opposite direction. This new method can be useful for researchers in medicine, life sciences, molecular chemistry and solid state physics.
A color-multiplexed holography system has been developed to record 3D information of objects illuminated by a white-light lamp and self-luminous specimens as a single multicolor hologram. The system acquires color 3D information with only a single-shot exposure and no color filter array.
Researchers created nanophotonic cavities in a nanopatterned InGaAsP membrane, exhibiting photonic analogue of valley-Hall effect. The structure supports quantized spectrum of modes confined to the domain wall, enabling topologically controlled ultrathin light sources.
The SLAC National Accelerator Laboratory has successfully produced its first X-ray beam using the upgraded LCLS-II facility, demonstrating significant advancements in X-ray technology. The new undulators offer dramatic new capabilities, including precise control of X-ray beams and unprecedented repetition rates.
Scientists cooled potassium-rubidium molecules to near absolute zero, observing an intermediate complex that lived for 360 nanoseconds. The team found that laser light was forcing the molecules off their reaction path, leading to loss.
Researchers at Newcastle University have developed a new type of organic LED that enables faster data transfer speeds, reaching 2.2 Mb/s. This breakthrough could enable the integration of portable and wearable organic biosensors into visible light communication links.
A team of scientists has proposed an efficient full-path calculation method for optical diffraction, leveraging the mathematical similarities between scalar and vector diffraction. The method uses the Bluestein approach to reduce computation time to sub-second levels, with superior flexibility in choosing ROIs and sampling numbers.
The team's innovation uses acoustic waves to enable faster tuning of components, resulting in higher-resolution lidar detection. The technology integrates microelectromechanical systems (MEMS) transducers made of aluminum nitride to modulate the microcomb at high frequencies.
Researchers found that a fundamental principle of lasers, compensating for losses with amplified light, is only an approximation. A tiny excess loss due to luminescence inside the laser provides the key to understanding the spectral linewidth.
Physicists at MIT have designed a quantum light squeezer that reduces quantum noise in lasers by 15% at room temperature. The system uses an optical cavity with two mirrors to engineer the light exiting the cavity, allowing for more precise measurements in quantum computing and gravitational-wave detection.
Researchers developed a new silicon chip with no moving parts that improves lidar system resolution and scanning speed, enabling applications in self-driving cars and smartphones. The breakthrough could lead to cheaper, smaller, and more complex lidar systems.
An international team of researchers has demonstrated a technique to increase the intensity of lasers by compressing light pulses. This approach could enable the exploration of quantum electrodynamics phenomena at previously inaccessible intensities.
Physicists from Max Born Institute and University of Rostock discover light-induced tunneling of electrons in dielectrics, creating a nonlinear current that dominates bright bursts of light. This finding expands fundamental understanding of optical non-linearity and its applications in information processing and material processing.
Astronomers have spotted evidence of a light-producing scenario during a black hole merger, with the flare likely resulting from the reaction of gas to the merging black holes. The event, observed by ZTF and other telescopes, provides insights into the behavior of supermassive black holes.
Researchers have developed a new high-energy hollow fiber compressor beamline to generate intense attosecond harmonic radiation for nonlinear XUV spectroscopy studies. The system achieves 1.5-optical-cycle-long laser pulses with 1.2 terawatt peak power at kilohertz repetition rate, breaking a 10-year-old record.
A team of scientists at Aalto University has successfully created a Bose-Einstein condensate that behaves as if it were one particle, but makes the elusive state of matter in just 100 femtoseconds. The breakthrough could lead to new areas of fundamental research and applications with these condensates.
Scientists at Penn State have fabricated a 'photonic topological insulator' that can mediate interaction between photons and form self-sustaining wave patterns called solitons. This innovation could lead to more efficient lasers, medical imaging, and other photonic technologies.