Articles tagged with Wavelengths
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 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 bio-inspired medical endoscope has been developed to acquire 3D visible light and near-infrared fluorescence images simultaneously, aiding surgeons in pinpointing cancerous tissue. The instrument combines high-resolution 3D imaging with the mantis shrimp's capability to detect multiple wavelengths of light.
Researchers have discovered a new class of fluorescent dyes that can convert visible light into ultraviolet light, overcoming one of the biggest challenges to harnessing sunlight for energy. This breakthrough could enable more efficient solar-powered water splitting and other high-energy reactions.
KAIST researchers have synthesized nanoparticles that emit multiple wavelengths of light from a single particle, allowing for the control of these particles' properties and creation of environmentally responsible displays and lighting. The discovery also sheds new light on the mechanisms governing the optical properties of carbon dots.
Entangled photon-based mid-infrared imaging improves penetration depth in highly scattering materials, enabling non-destructive testing and analysis of ceramics and paint samples. The technique produces high-quality 2D and 3D images using a compact optical setup.
Researchers developed novel cascade optical field modulation strategy to boost UCL by more than four orders of magnitude. The new material exhibits extremely high responsivity and detectivity, achieving selective detection in three narrow spectral bands.
Researchers at Brown University developed a new remote sensing method for studying olivine, a key mineral in planetary bodies. The technique can predict magnesium and iron content with high accuracy, offering insights into the early evolution of the Moon and Mars.
Researchers at POSTECH developed thin-film organic photodiodes with accurate and simple junction engineering, controlling spectral response of wavelengths. This innovation enables the production of color-filter-free optical sensors, a significant advancement in replacing silicon photodiodes.
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.
A team of researchers at INRS has discovered a method to tune the spectrum of a laser to the infrared using a simple and much less expensive system: a hollow-core fiber filled with nitrogen. This approach delivers optical pulses shorter than those of the input laser and with high spatial quality.
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 the Max Born Institute have developed a method to record high-resolution movies of molecular dynamics using electrons ejected from a molecule by an intense laser field. This technique allows for the observation of ultrafast nuclear rearrangement with both high temporal and spatial resolution.
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.
QUT researchers develop a novel molecular coupling tool using green light and pH triggers, enabling catalyst-free chemical reactions. The tool has potential applications in drug delivery and 3D cell culture platforms, with the ability to control photoreactivity using varying pH levels.
A Northwestern University-led team examined a calcium-rich supernova dubbed SN 2019ehk with X-ray imaging, providing an unprecedented glimpse into the star during its final month of life and ultimate explosion. The study revealed that the event is a compact star shedding an outer layer of gas before exploding, producing bright X-rays.
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 have developed a new system delivering few-ps pulses at 2 μm wavelength with peak power of 17 GW, exceeding previous records. The system features excellent stability and brilliant beam quality, making it suitable for applications in nonlinear optics, spectroscopy, and materials processing.
Researchers developed a graphene-based ultrathin lens that can be electrically tuned to adjust focusing and eliminate chromatic aberration. The device features high transmittance, high resolution, and multifunctional capabilities for various display applications.
Scientists at Tokyo University of Science developed a novel laser-based strategy to degrade cellulose into glucose and cellobiose, precursor molecules for bioethanol production. The technique uses an infrared-free electron laser and achieves high yields without harsh reaction conditions.
A new way to engineer optoelectronic devices has been discovered by researchers at George Washington University. Using a method called strainoptronics, the team created a novel photodetector that can operate with high efficiency at telecom wavelengths, advancing future communications and computer systems.
Researchers have developed a quantum-inspired approach for OCT detection, allowing for high-quality imaging with power levels up to 1 million times lower than current standards. This breakthrough enables safer and more efficient OCT imaging for medical applications.
A team of scientists from ITMO University developed a method to create optical chips in a Petri dish using gallium phosphide as a material for the waveguides. The new chip elements are three times smaller than those working in the IR spectral range, enabling compact and affordable production of lasers and waveguides.
Researchers discovered that twisting ultrathin layers of molybdenum trioxide enables diffraction-free light propagation in tightly focused channels over a wide range of wavelengths. This breakthrough has promising implications for leapfrog advancements in imaging, optical computing, and biosensing technologies.
Researchers developed a metal-organic framework material that sensitizes lanthanide ions, allowing for unprecedented imaging in tissues. The material enables longer-lasting luminescence, providing a time advantage for studying biological systems.
Astronomers have discovered a region around a protostar containing complex organic molecules, dubbed a 'hot corino,' which is crucial for the formation of life. The finding resolves a long-standing puzzle about why some binary systems show evidence of hot corinos but not others.
Researchers have created a variable color sheet using elastomer nanosheets that change color in response to strain, achieving reversible wavelength control of transmitted light. The developed sheets utilize surface plasmon to produce extraordinary optical transmission and can be used for flexible displays and sensors.
Researchers at POSTECH developed a variable color filter using metal-hydrogel-metal resonator structure and combined it with solar cells to create a self-powering humidity sensor. The sensor detects changes in surroundings by converting light's energy into electricity, making it suitable for use in IoT technology.
The study aims to develop optical radiation products used in large-scale sanitation processes and create a lamp with both germicidal and lighting elements. Researchers will test different wavelengths of ultraviolet light against coronaviruses like COVID-19.
Scientists have developed a new scheme to generate near-single-cycle mid-infrared pulses in plasmas, achieving conversion efficiencies of up to 30%. The method uses two terawatt-level short-pulse lasers incident into an underdense plasma channel, producing a tunable mid-infrared pulse with millijoules of energy.
Researchers proposed a new scheme to generate near-single-cycle mid-infrared light pulses with a few millijoules in energy, achieving a high conversion efficiency of 30%. The method utilizes two terawatt-level short-pulse lasers and an underdense plasma channel.
Scientists have developed an all-fiber optical wavelength converter using few-layer gallium selenide (GaSe) nanoflakes, enhancing efficiency by over four orders of magnitude compared to traditional microfibers. The converter can operate in a wide wavelength range, covering C, L telecom bands and the O band, with minimal power consumption.
A new approach uses European Space Agency Sentinel-2 satellites to detect patches of floating plastics in marine environments, distinguishing them from other materials with 86% accuracy. The method successfully classified different types of plastics and natural materials across four coastal areas.
Researchers at ETH Zurich have developed a high-repetition-rate laser source producing coherent soft x-rays spanning the entire 'water window', enabling new applications in chemistry and biology. The system, capable of 100 kHz repetition rates, demonstrates a significant improvement over existing sources.
A team of researchers has developed a new method for generating quantum-entangled photons in the previously inaccessible spectral range of 2.1 micrometers. This breakthrough can enhance the security of satellite-based communications by making end-to-end encryption possible on sunny and cloudy days.
Researchers have developed a chip-based device that can shape and steer blue light with no moving parts, paving the way for miniaturized optical systems in augmented reality and other applications. The device's silicon nitride platform enables reconfigurable lenses to create arbitrary 3D light patterns.
Researchers have developed a low-power beam steering platform that enables scalable optical systems for ultra-small LiDAR on autonomous vehicles, AR/VR displays, trapped-ion quantum computers, and optogenetics. The technology reduces power consumption while maintaining operation speed and broadband low loss.
Scientists at Chiba University have discovered a previously overlooked electronic transition 'S0 → Tn' in heavy-atom-containing molecules exposed to visible light. The study reveals that this mechanism promotes radical reactions in photoreactions with visible light, which was not previously considered a main role.
A team of researchers from UC Santa Barbara has developed a system using hyperspectral imaging and machine learning to detect methane leaks, achieving an 87% success rate. This method can differentiate between methane and other hydrocarbons, pinpointing the location of emissions.
A team of researchers has created a novel photoacoustic imaging method that can penetrate up to 3.4 cm into deep tissues using a nickel-based nanoparticle contrast agent. This advancement enables the visualization of deep organs without causing harm or using ionizing radiation, paving the way for improved clinical diagnosis and practices.
Scientists have developed a novel plasmonic platform to tailor the spontaneous near-to-mid IR emission of HgTe quantum dots, achieving a 5-fold enhancement of PL quantum yield and reducing non-radiative decay. The study demonstrates the potential for precise tuning of IR-emitting QDs' emission, improving device performance.
Researchers at LMU München successfully couple a light-activated molecular motor to a receiver unit, demonstrating the motor's ability to accelerate rotation and perform useful work. The study provides unprecedented insights into the operation of an integrated molecular machine.
UVphotonics presents novel UV LED developments with customizable wavelengths and compact size ideal for water purification, disinfection, medical diagnostics, and more. The company's product portfolio has been expanded to include integrated driver circuits and fully packaged UVC LEDs.
Scientists at TU Wien have created a record-breaking terahertz laser beam that produces extremely efficient and high-intensity terahertz radiation. The technology generates a broad spectrum of terahertz radiation, enabling the creation of short pulses with extremely high radiation intensity.
Researchers from Tongji University and The Hong Kong Polytechnic University developed a compact broadband acoustic absorber using imperfect components with low absorption peaks. By modulating the coherent coupling effect, they achieved quasi-perfect absorption across a broad frequency range (870 - 3224 Hz) with an average coefficient o...
A new laser-based system has been developed to detect and measure the levels of all biomolecules, including proteins, sugars, fats, and their derivatives. This technique offers unparalleled sensitivity and can be used for all known classes of biomolecules, enabling the detection of precancerous and malignant cells in body fluids.
Researchers have designed a silicon-based chip-integrated light source that can transform infrared wavelengths into visible wavelengths, enabling highly miniaturized photonic instrumentation. The new optical parametric oscillator (OPO) light source simultaneously generates near-infrared wavelengths for telecommunication applications.
The Goddard-IRAM Superconducting 2-Millimeter Observer (GISMO) instrument has mapped the inner Milky Way, revealing a feature resembling a cosmic 'candy cane' with two prominent radio filaments. The image showcases the galaxy's central zone, highlighting areas of star formation and high-speed electron spirals.
Researchers developed nanoparticles that emit different colors of light to trigger specific biological processes. They successfully controlled the beating rate in modified heart-muscle cells using red and green light, demonstrating a new level of control over biological processes.
The NASA-developed Photonic Integrated Circuit Tuned for Reconnaissance and Exploration (PICTURE) instrument will utilize telecommunications-inspired technologies to create a smaller, more capable spectrometer. This device aims to gather unprecedented details about extraterrestrial planets, moons, comets, and asteroids.
UCF researchers have created an infrared detector that can enhance night vision capabilities by detecting different wavelengths of infrared light. The technology has implications for improving what can be seen in space, chemical and biological disaster areas, and on the battlefield. The detector operates faster than existing cameras an...
Researchers discovered a connection between changes in internal gravity wave parameters five days before an earthquake, enabling the development of short-term forecast methods. The study's results show that IGWs can be used to identify seismically active regions and make predictions about upcoming seismic events.
Researchers have developed porous polymer coatings that can reversibly switch their optical transmittance in solar and thermal wavelengths, enabling dynamic control of light and heat in buildings. The coatings can regulate indoor temperatures and light levels, making them suitable for heating, cooling, and lighting applications.
Researchers developed a low-cost, non-electric cooling technology using a polymer film that can cool buildings in metropolitan areas during the day. The tech achieves this by exploiting spectral overlap between atmospheric window and thermal radiation emitted by buildings.
Scientists demonstrate a new type of quantum device using a silicon carbide photonic integrated chip that can be tunable, paving the way for next-generation quantum information processing devices. The approach overcomes some of the fragility drawbacks of previously reported SiC platforms.
Researchers have designed a new member of the aggregation-induced emission (AIE) family using 1,1,2,4-tetraphenyl-1,3-butadiene derivatives. These TPB derivatives exhibit strong fluorescence in aggregates and variable emission wavelengths due to conformational sensitivity.
Researchers developed a tiny nanolaser that can function inside living tissues without harming them. The nanolaser shows promise for imaging in living tissues and can operate in extremely confined spaces.
Researchers have found a magic wavelength in cadmium, enabling the creation of atomic clocks with unprecedented accuracy. This breakthrough could revolutionize time measurement and test new physics theories.
Scientists have confirmed that STEVE, a celestial phenomenon, has distinct differences from aurora. Its pinkish mauve color and 'picket fence' emissions set it apart. Researchers are now focused on understanding what causes STEVE and its potential impact on our infrastructure.
Scientists at CNRS have created polymers that can change information stored on a molecular level using specific wavelengths of light. This technology allows for the storage and decoding of secret messages, with potential applications in designing new materials.
A group of researchers has developed new inquiry-based models for optical states in photonic crystals, leading to breakthroughs in high-polarization-sensitive sensors. The study focuses on three-dimensional opal-like photonic crystals, which can be used to improve control over light in these systems.