Articles tagged with Photons
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 develop a new way to manufacture high-efficiency diffraction gratings using reactive ion-plasma etching, achieving near-theoretical unpolarized diffraction efficiency of 94.3%. The process enables robust and durable gratings suitable for harsh environments.
Researchers have developed a method for centimeter-scale color printing using grayscale laser writing, achieving vivid and fine-tunable colors. The technique leverages pixelated optical cavities to generate transmission colors with a transmission efficiency of 39-50%.
A research team from DTU has successfully designed and built a structure that concentrates light in a volume 12 times below the diffraction limit, paving the way for revolutionary new technologies. The breakthrough could lead to more sustainable chip architectures that use less energy.
Nuclear physicists have confirmed a bump in the data of proton structure measurements, revealing an unexplained spike in electric polarizability. The anomaly is puzzling experts, who believe it may indicate an unknown facet of the strong force at work.
A multi-institutional team has developed an efficient method for measuring high-dimensional qudits, which are more resistant to noise and can carry more information than qubits. The technique uses phase modulators and pulse shapers to characterize qudit entanglement with unprecedented precision.
Researchers propose an optical imaging system for real-time hypoxia imaging in cancer treatment. The technique utilizes protoporphyrin IX to enhance contrast between tumors and healthy tissues, allowing for more effective surgical removal.
Scientists explore the dynamics of soft materials like toothpaste and hair gel using X-ray photon correlation spectroscopy (XPCS). The technique reveals microscopic dynamics and helps understand properties like viscosity and elasticity. Insights gained can aid in designing consumer products, nanotechnologies, and drug delivery systems.
A team at Tampere University has demonstrated that quantum waves behave differently from classical counterparts, increasing the precision of distance measurements. Their findings also shed light on the physical origin of the Gouy phase anomaly in focused light fields.
Scientists from Paderborn and Ulm universities create a programmable optical quantum memory, enabling the efficient growth of large entangled states. This breakthrough milestone brings researchers closer to practical applications of useful quantum technologies.
Scientists have developed a solution to communication challenges in neuromorphic chips using superconducting devices. This allows artificial neural systems to operate 100,000 times faster than the human brain, with potential applications in industrial control and human conversations.
A University of Houston professor has developed a nonreciprocal solar energy harvesting system that surpasses the thermodynamic limit and clears the way to use solar power 24/7. The new system can achieve significant efficiency boosts, paving the way for practical applications in power plants.
Scientists at Stevens Institute of Technology have created a method to encode more information into a single photon, enabling faster and more powerful quantum communication tools. The twisty photon technology uses orbital angular momentum to boost the bandwidth of quantum communication systems.
Researchers used the Advanced Photon Source to study asteroid fragments from Ryugu, finding they were made of water and carbon dioxide ice. The analysis suggests the asteroid formed over 4 billion years ago in the outer solar system, with a hydrated interior and dryer surface.
Scientists have developed a thin device that can produce complex webs of entangled photons, enabling new information processing schemes and advanced encryption methods. The device uses a metasurface to control the phenomenon of quantum entanglement, paving the way for more compact and powerful computing and sensing technologies.
Researchers from Purdue University have proposed a method to generate entangled photons at extreme-ultraviolet wavelengths, enabling the tracking of electron dynamics on attosecond timescales. This could push the limits of measurement down to zeptoseconds, improving our understanding of atomic and molecular behavior.
The new photodetector design combines long-range transport of optical energy with long-range conversion to electrical current, mimicking the photosynthetic complexes found in plants. The device can gather light from areas of about 0.01 mm² and achieve conversion of light to electrical current over exceptionally long distances of 0.1 nm.
Researchers at the Max Planck Institute have successfully generated up to 14 entangled photons using a single atom, enabling efficient creation of quantum computer building blocks. This breakthrough could facilitate scalable measurement-based quantum computing and enable secure data transmission over greater distances.
Scientists from Göttingen and Lausanne successfully created electron-photon pairs in an electron microscope for the first time. This breakthrough enables researchers to harness free electrons and photons in a controlled manner.
A team of researchers used sophisticated imaging algorithms to reveal a thin, bright ring of light created by photons flung around the back of a supermassive black hole. The photon ring, comprising increasingly sharp sub-rings, confirms theoretical predictions and offers new ways to explore these mysterious objects.
Scientists at KAUST have successfully created a semiconductor material with multiple exciton generation, resulting in a photocurrent quantum efficiency of over 100%. This breakthrough could lead to improved solar cells and light-harvesting applications.
Researchers have demonstrated a significant improvement in fibre-integrated quantum memories, achieving an entanglement storage time of over 1000 microseconds. The fully integrated device enables the use of sophisticated control systems, allowing for improved scalability and compatibility with telecommunications infrastructure.
Researchers at UChicago have created a 'quantum flute' that can coerce particles of light to interact with each other in a way never seen before. This breakthrough has the potential to simplify complex quantum computations and enable new forms of error correction in quantum computers.
Using nearly two decades of research and ultrabright X-ray beams, scientists have created a detailed structural map of the nuclear pore complex (NPC), a key regulator of cellular operations. The results provide significant implications for understanding disease mechanisms and developing new treatments.
Scientists have created a new technology that can manipulate light in non-reciprocal ways, allowing for more advanced applications in quantum computing. The innovation uses nanostructured surfaces to convert infrared light into visible light, enabling the creation of specific photon conditions.
Scientists have made a pivotal new breakthrough in controlling light to evolve the next generation of quantum sensing and computing. The team has shown that controlling light can be achieved by inducing and measuring a nonlinear phase shift down to a single polariton level.
Scientists have produced identical photons originating from different sources, a crucial step towards applications like quantum computing and secure communication. The researchers achieved this by using precise electric fields to tune the energy levels of quantum dots, resulting in 93% identical photons.
The researchers successfully demonstrated attosecond-pump attosecond-probe spectroscopy to study non-linear multi-photon ionization of atoms. The experiment showed that the absorption of four photons from two attosecond pulse trains led to three electrons being removed from an argon atom.
Physicists at FAU have designed a framework to observe light-electron interactions using traditional SEMs, reducing costs and increasing experiment range. This photon-induced electron microscopy (PINEM) technique allows for precise measurements of energy changes in electrons.
A novel all-optical switching method has been developed to make optical computing and communication systems more power-efficient. The method utilizes the quantum optical phenomenon of Enhancement of Index of Refraction (EIR) to achieve ultrafast switching times, ultralow threshold control power, and high switching efficiency.
Researchers from Johannes Gutenberg University Mainz have achieved a breakthrough in using chromium compounds for efficient green-to-blue photon upconversion. This process can expand the use of low-energy sunlight in solar cells and photochemical reactions, reducing environmental impacts associated with rare metal extraction.
Researchers have developed a single-cell PV design integrated with nonreciprocal optical components to provide 100-percent reuse of emitted radiation, breaking the Shockley–Queisser limit. This breakthrough enables a quasimonochromatic radiation converter to reach the theoretically maximum Carnot efficiency.
Researchers developed a hot-carrier multijunction solar cell that maintains high conversion efficiency with nonoptimal materials, expanding the scope of candidate designs. The novel architecture showed superior resilience to design imperfections, widening the range of suitable materials and operating conditions.
Researchers at TU Darmstadt have developed a scalable quantum network that enables secure key exchange and protection of sensitive information. The system uses entanglement-based time-bin coding to distribute photons to users, ensuring robust security against eavesdropping attacks.
Researchers at Aalto University have discovered a dedicated neural pathway in the retina that can detect even the dimmest shadows possible. This breakthrough could lead to unprecedented resolution in probing visual diseases.
Researchers developed efficient metal-free polymeric scintillators for high-resolution X-ray imaging, outperforming conventional anthracene-based scintillators. The polymers exhibit multicolor radioluminescence and high photostability, enabling applications in radiation detection, medical diagnosis, and security inspection.
A research team developed a new approach to generate deep-ultraviolet lasing through a 'domino upconversion' process of nanoparticles using near-infrared light. This breakthrough enables the construction of miniaturised high energy lasers for bio-detection and photonic devices.
Researchers studied ultrafast control of single-photon emitters in hexagonal boron nitride using laser pulses. They developed a comprehensive understanding of the dynamics within colour centres, which can help avoid perturbations in future applications.
A team of scientists at Argonne National Laboratory has developed a new qubit platform formed by freezing neon gas into a solid and trapping an electron there. The platform shows great promise in achieving ideal building blocks for future quantum computers, with promising coherence times competitive with state-of-the-art qubits.
Researchers demonstrate atomic scale memristors capable of emitting photons during resistive switching, providing a compact and CMOS-compatible light source. The 'Atomic Photon Source' consists of a planar Ag/amorphous SiOx/Pt junction with optical antennas, emitting light during electrical connection formation.
Researchers developed an improved transient spectrometer combining TCSPC with a pulse generator to investigate energy transfer mechanisms and exciton evolution in organic light emitting diodes. The technique's superior sensitivity enables extraction of mobility information, providing valuable insights into device physics.
Researchers propose new method to enhance light delivery and focusing in scattering mediums, enabling deep imaging and biomedicine applications. The technique uses flying spot Reflection Matrix Optical Coherence Tomography (RMOCT) to separate multiple scattering photons and control their energy.
Researchers have engineered an optical device with functional characteristics similar to memristors, which can operate on quantum states of light and encode quantum information. This breakthrough enables the creation of a quantum memristor, potentially bridging artificial intelligence and quantum computing.
Researchers at Paderborn University have developed an all-optical, non-linear method to tailor and control single photon emissions. The new concept enables laser-guided energy tuning and polarisation control of photons, paving the way for breakthroughs in photonic quantum technologies.
Researchers at Kyoto University have discovered a scaling law that determines high-order harmonic generation in the perovskite material Ca2RuO4. The phenomenon, which was first observed in atomic gas systems, has been found to be highly dependent on temperature and gap energy.
Researchers propose a novel pathway to realizing hot carrier solar cells, which can exceed the typical efficiency limit on solar cells. The approach involves isolating hot carriers within higher energy valleys in semiconductors, reducing energy loss to heat.
Researchers use DNA to program metal nanoparticles to assemble into new configurations, resulting in the discovery of three new crystalline phases. The approach enables symmetry breaking and creation of complex colloidal crystal structures with unique optical and catalytic properties.
Researchers at Argonne National Laboratory have discovered a key reason for the performance decline of sodium-ion batteries, which are promising candidates for replacing lithium-ion materials. By adjusting synthesis conditions, they can fabricate far superior cathodes that will maintain performance with long-term cycling.
Researchers at the University of Vienna have created a quantum memristor that combines artificial intelligence and quantum computing. The device uses single photons to achieve memristive behavior, which can be used for learning on both classical and quantum tasks.
Researchers have found direct evidence of strong electron correlation in ABC trilayer graphene, a two-dimensional material that can switch between metal, insulator, and superconductor states. The discovery provides insight into the underlying physics driving these switchable materials.
A team led by Prof. Dr. Giuseppe Sansone used attosecond pulses to investigate the motion of electrons after photon absorption, finding they experience a complex landscape with potential peaks and valleys. This approach can be extended to more complex molecular systems, providing unprecedented temporal resolution.
Researchers from the University of Würzburg have discovered new states in 2D materials by exploring their interactions with phonons. This breakthrough enables the creation of hybridized exciton-photon-phonon states, which could lead to room-temperature Bose-Einstein condensation and polariton lasing.
Researchers developed mpH^2 MM to analyze fluctuating molecular signals, enabling predictions of shape changes. The framework was applied to DNA and proteins, revealing distinct mechanisms for binding molecules.
Researchers used a COLTRIMS reaction microscope to determine the duration of an electron's release after photon absorption. The study found that the emission time depends on the direction and velocity of the electron, revealing a complex interplay between quantum physics and molecular dynamics.
A new simulation suggests that energy released near a black hole's event horizon during magnetic field line reconnection powers the intense flares. The process involves interactions between the magnetic field and material falling into the black hole, releasing hot plasma particles that radiate away as photons.
Researchers review current research on 2D materials, highlighting their potential for quantum light sources and integrated circuits. The scientists also discuss recent advances in hybrid devices and scalable quantum photonic technologies.
A new wearable headset, Kernel Flow, monitors brain activity using time-domain fNIRS. The system can record high-resolution brain signals from across the brain with performance similar to conventional systems.
Scientists from Tampere University and National Research Council of Canada develop a technique using two-photon N00N states to create entangled photon pairs with improved measurement precision. This allows for spatially structured quantum states of light that can go beyond classical limits in rotation estimation.
Researchers at GIST used ultrafast X-ray pulses to study warm dense copper electrons, revealing that bonds harden before melting. The findings could improve understanding of extraordinary material properties and their underlying mechanisms.
Paderborn University to establish a three-node quantum network in real urban environment, utilizing standardized equipment and protocols. The initiative aims to enhance efficiency and stability of quantum communication systems.
A team of researchers demonstrates an adaptive optimization protocol that can engineer arbitrary high-dimensional quantum states, overcoming limitations due to noise and experimental imperfections. The protocol uses measured agreement between produced and target state to tune experimental parameters.