Articles tagged with Laser Physics
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.
The study reveals ballistic transport of electrons in graphene, enabling fast speed and low energy consumption. By mapping the 'reflectance' of the sample with ultrafast lasers, researchers observed electrons moving ballistically in real time.
Researchers from the University of Tokyo have developed a new way to charge quantum batteries using optical apparatuses and the phenomenon of indefinite causal order. This approach enables significant gains in energy storage and thermal efficiency, even with lower power chargers.
The researchers successfully created a stable hybrid laser by 3D printing micro-optics onto fibers, reducing the size and cost of traditional lasers. The new design enables high-power laser sources with compactness and robustness, opening up opportunities for applications such as autonomous vehicles, medical procedures, and lithography.
Embedding nanodiamonds in polymer can advance quantum computing and biological studies. The technique, developed at the University of São Paulo, enables integration of quantum emitters into photonic devices and cell marking applications.
Researchers at Texas A&M's Institute for Quantum Science and Engineering are part of a $42 million program to advance laser-driven fusion energy. The RISE hub will focus on innovative target concepts, excimer gas lasers, and solid-state laser drivers to open up novel IFE regimes.
Researchers at the University of Colorado Boulder have developed a new technique using doughnut-shaped beams of light to take detailed images of objects too tiny to view with traditional microscopes. This approach could help scientists improve nanoelectronics by inspecting semiconductors without damaging them.
Researchers have successfully excited a scandium-45 nuclear isomer using X-ray pulses, paving the way for the creation of the world's most precise clock. The breakthrough has significant implications for fields such as nuclear physics, satellite navigation, and telecommunications.
Researchers at UEA have proposed a new method to investigate quantum-mechanical processes in molecules using quantum light. The study shows that phonon signatures can be detected in photon correlations, providing a toolbox for studying quantum sound interactions.
Researchers at LIGO have developed a significant advance in quantum squeezing technology, allowing them to measure undulations in space-time across the entire range of gravitational frequencies detected by LIGO. This breakthrough boosts the observatory's ability to study exotic events and detect about 60 percent more mergers than before.
Researchers at University of Otago have developed a new form of antenna for radio waves using an atomic vapor, providing high sensitivity and broad tunability. The portable design enables efficient measurement of fields over long distances, making it suitable for defence and communications applications.
Researchers at Ohio State University have detected a previously unknown physics phenomenon, the orbital Hall effect, which could revolutionize data storage in future computer devices. The study's findings suggest that utilizing orbital currents instead of spin currents could lead to lower energy consumption and higher speeds.
Scientists at Max Planck Institute for the Structure and Dynamics of Matter discovered a way to create a superconducting-like state in K3C60 using laser light. By tuning the laser frequency, they reduced pulse intensity by a factor of 100 while maintaining high temperatures.
Researchers successfully extend lasing beyond the fluorescence spectrum of Yb-doped La2CaB10O19 crystal through phonon engineering. Theoretical calculations predict a broadband emission spectrum with increased phonon numbers, demonstrating potential for self-frequency doubling and various applications.
Researchers propose a new way to control moiré flatbands by adjusting the band offset of two photonic lattices, enabling the creation of novel multiresonant moiré devices. This breakthrough opens new opportunities in moiré photonics and promises to inspire future explorations into innovative moiré devices.
A new device design inspires improved integrated circuit designs by visualizing electric current flow lines around sharp bends. The research enables better understanding of heat generation in electronic devices, leading to more efficient circuit creation and reduced risk of overheating.
Researchers from Politecnico di Milano have discovered the early manifestation of therapy-induced senescence in human tumor cells. The study highlights the importance of non-invasive technologies in understanding cancer biology and paves the way for personalized treatments.
Researchers at Osaka University have created a new optical device that generates deep-UV light using second harmonic generation, killing germs while remaining harmless to humans. The device is more efficient and compact than previous options, paving the way for commercial applications.
Researchers at the University of Waterloo have created a robust method to control individual qubits made of barium, a crucial step towards building functional quantum computers. The new optical system uses laser light and precision engineering to target and control individual atoms with unprecedented accuracy.
Researchers developed an automated viral plaque assay method combining time-lapse holographic imaging and deep learning to greatly reduce detection time. This technique can aid in developing new vaccines and antiviral drugs by expediting the testing process, allowing for faster response times to virus-induced health emergencies.
Researchers have created chip-based optical frequency combs using dissipative Kerr solitons, increasing output power for applications like atomic clocks. The advancement paves the way for highly portable precision metrology devices.
Matthew Sfeir will receive a $1.25 million grant to measure the quantum properties of conducting organic polymers using far-infrared and terahertz light sources. The research aims to develop transparent electrical conductors for advanced photonic and quantum-based technologies.
A team at Osaka University has simulated photon-photon collisions to produce electron-positron pairs, paving the way for experimental confirmation of quantum physics theories. The simulation uses ultra-intense laser pulses and demonstrates the feasibility of creating matter solely from light.
Researchers from West Virginia University have made a groundbreaking discovery by detecting evidence of low-frequency gravitational waves, which can only be perceived with a detector much larger than the Earth. The signal was detected using pulsar timing arrays and has significant implications for understanding spacetime dynamics.
A team at the University of Washington has made a breakthrough in quantum computing by detecting signatures of 'fractional quantum anomalous Hall' (FQAH) states in semiconductor materials. This discovery marks a significant step towards building stable qubits and potentially developing fault-tolerant quantum computers.
A Brazilian study compared treatments for idiopathic and refractory tinnitus, finding low-level laser therapy with photobiomodulation to be the most effective. The treatment had lasting therapeutic effects when combined with other therapies.
Researchers developed an electrically-pumped compact topological bulk laser for single-mode emission and cylindrical vector beams. The device utilizes band-inverted topological band edges that support high quality factors, enabling miniaturization and single-mode laser emission.
Researchers created an isolated turbulent blob by firing vortex rings into a tank of water, allowing precise tracking of its parameters. This breakthrough enables scientists to study real-world turbulence more effectively, exploring questions about dissipation, expansion, and energy spread across scales.
The InVADER Mission successfully deployed a high-tech laser laboratory on the ocean floor, marking a paradigm shift in ocean research and exploration. The Laser Divebot collects compositional data without disturbing the environment, removing the need for physical samples.
Researchers at UChicago's Pritzker School of Molecular Engineering have developed a method to constantly monitor noise around a quantum system and adjust qubits in real-time. The approach uses spectator qubits to track environmental changes and cancel out noise in vital data-processing qubits, improving the quality of data qubits.
Researchers at LMU and the Max Planck Institute use attosecond science to study how solids change their optical properties immediately after photoinjection. They find no clear signs of quasiparticle formation, which may indicate that many-body physics has little influence on conductivity.
Research team settles decade-long debate on Ta2NiSe5's microscopic origin of symmetry breaking; structural instability hinders electronic superfluidity. Advanced experiments and calculations confirm crystal structure changes as driving force behind phase transition.
Scientists at the Max Planck Institute successfully induced high-temperature ferromagnetism in YTiO3 by applying laser pulses, raising the transition temperature to triple its original value. This breakthrough discovery opens new avenues for exploring and manipulating magnetic properties of materials.
A team from Nanjing University and Sun Yat-Sen University developed a two-facing Janus OPO scheme for generating high-efficiency, high-purity broadband LG modes with tunable topological charge. The output LG mode has a tunable wavelength between 1.5 μm and 1.6 μm, with a conversion efficiency above 15 percent.
Researchers develop unique method to enhance extreme ultraviolet laser power by exploiting dark-autoionizing states, increasing conversion efficiency by over ten times. This breakthrough enables studying ultrafast dynamics of dark autoionizing states at the femtosecond timescale, with potential applications in quantum technologies.
A new method devised by Rensselaer Polytechnic Institute's Moussa N'Gom enables effective free-space optical communication between satellites and the ground, unaffected by rain and clouds. The ultrafast lasers create a long filament of light that clears space for visible light transmission.
A team from TU Wien has developed a method to cool several particles simultaneously by adapting the spatial structure of a laser beam to particle motion. The technique uses far-field wavefront shaping to optimize cooling and can be achieved without knowing the exact location or movement of the particles.
Researchers have devised a new mechanism to generate high-energy 'quantum light', which could reveal new properties of matter at the atomic scale. The theory predicts a way to control the quantum nature of light using correlated emitters with a strong laser.
Researchers have developed a new way to produce mirrors that can withstand extremely high powers, enabling the creation of small footprint, ultra-high-power laser systems. This breakthrough has significant implications for various fields such as medicine, biology, and physics.
A water droplet acts as a model of an atom when illuminated by laser light, allowing researchers to study resonance phenomena and energy levels. The droplet's size changes due to evaporation, creating a visible 'optical atom' that can be used to analyze water quality and detect pollutants.
University of Central Florida researchers observed de Broglie-Mackinnon wave packets, a long-standing theoretical concept, by exploiting a loophole in 1980's-era laser physics theorem. The team's use of space-time wave packets, which resist stretching in dispersive media, verifies predicted properties and opens the path to studying top...
Researchers developed BrightEyes-TTM, an open-source stopwatch to study molecular interactions inside living cells. The platform records the lifetime of fluorescent molecules, providing insights into cellular structure and function.
Researchers demonstrate the ability of GHz burst mode femtosecond laser pulses to create unique two-dimensional (2D) periodic surface nanostructures on silicon substrates. The GHz burst mode enhances ablation efficiency and quality compared to conventional single-pulse mode, enabling the formation of distinctive 2D LIPSS.
Researchers at the University of Maryland successfully guided a 45-meter-long beam of light through an unremarkable hallway, pushing the limits of an innovative technique. The team utilized ultra-short laser pulses to create a plasma that heated air, forming a high-density core and enabling efficient light delivery.
Researchers at UMD successfully guided light in a 45-meter-long air waveguide, creating a high-density core to guide a laser. The technique utilizes ultra-short laser pulses to create a plasma that heats the air, expanding it and leaving a low-density path behind.
A team of researchers from Synchrotron SOLEIL, France, and Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Germany, has successfully demonstrated a free-electron laser driven by plasma acceleration and seeded by additional light pulses. This achievement could lead to the development of more compact and affordable FEL systems.
Researchers at Nagoya University have achieved a breakthrough in developing deep-ultraviolet laser diodes, which could revolutionize applications such as sterilization and medicine. The team successfully reduced the operating power needed for continuous-wave lasing to just 1.1W at room temperature.
Researchers at the University of Rochester used x-ray spectroscopy to study radiation transport in dense plasmas. They found that atomic energy level changes do not follow conventional quantum mechanics theories, instead conforming to a self-consistent approach based on density-functional theory.
Researchers at ETH Zurich introduce a novel single-cavity architecture for a dual-comb laser, enabling fast and precise scanning of optical delays. The system achieves high precision (2-fs) and stability (up to 500 Hz) for an optical delay of 12.5 ns, opening up new possibilities for practical applications.
A new type of integrated semiconductor laser has been developed using the Pockels effect, integrating a lithium-niobate-on-insulator platform. This technology enables fast reconfigurability and narrow spectral window, paving the way for applications in LiDAR remote sensing, microwave photonics, atomic physics, and AR/VR.
Researchers have developed a high-performance laser system capable of measuring electron temperature and density in plasma at a world record speed of 20,000 times per second. This breakthrough enables detailed measurements of transient phenomena in plasmas, crucial for understanding and controlling fusion power generation.
Researchers from the Max Born Institute found that magnesium ions reduce ultrafast fluctuations in water's hydration shell, slowing solvation dynamics. The study reveals a short-range effect of individual ion pairs on dilute aqueous systems.
Researchers from the Institute of Physical Chemistry, Polish Academy of Sciences, recorded double Hopf bifurcation behavior of light during laser operation. They also demonstrated real-time experimental observation of the phenomenon and proposed a new methodology to interpret the observed dynamics.
A team of researchers from Osaka University used computer simulations to model the optical radiation force distribution induced by an interference pattern, enabling the fabrication of nano-sized structures with chiral properties. This technology has the potential to create new optical devices, such as chirality sensors.
Researchers have developed an ultrahigh-efficiency and low-noise scheme of quasi-parametric chirped-pulse amplification (QPCPA), achieving 56% energy efficiency for signal conversion. This process greatly suppresses parametric superfluorescence noise, enabling high repetition-rate operation and potential peak powers over 50 PW.
A study by Prof. Weiwei Liu's group reveals a negative correlation between plasma density and THz radiation intensity, with maximum radiation at minimum plasma density. The researchers attribute this to the electron drifting velocity, which dominates THz pulse generation.
A team from Harvard John A. Paulson School of Engineering and Applied Sciences has developed an electro-optic frequency comb that is 100-times more efficient and has more than twice the bandwidth of previous state-of-the-art versions.
Researchers propose a simple method to generate intense isolated attosecond x-ray pulses using wavefront control, overcoming previous limitations. The new approach requires only a 100 fs conventional laser, making it feasible for current FEL facilities.
The study reveals that noise sources in the micro resonator can cause the lines to be narrower than previously thought, enabling more precise measurements. By understanding this phenomenon, researchers can develop even more accurate devices, such as instruments measuring signals at light-years distances.
Researchers discovered that a naturally insulating material, lanthanide-doped upconversion nanoparticle (UCNP), emits bursts of superfluorescence at room temperature and regular intervals. This property is valuable for quantum optical applications, such as faster microchips or neurosensors.
Scientists at Imperial College London have created a laser device that can reconfigure its structure in response to changing conditions. The innovative technology mimics the properties of living materials, enabling self-healing, adaptation, responsiveness, and collective behavior.