Articles tagged with Optical Coatings
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 researchers has developed a dual-response cellulose–WO3 composite film that can switch tint in seconds and survive 200 cycles. The membrane is made from wood and can be roll-coated on existing paper machines, making it a sustainable alternative to traditional smart glass.
The thorium-229 nuclear optical clock has the potential to achieve a very high-precision time and frequency standard due to its unique properties. Despite significant progress, numerous challenges remain, including temperature sensitivity and the scarcity of the isotope.
Researchers at Waseda University developed a novel self-assembly process to create multilayered films with superior thermal, mechanical, and gas barrier properties. The film exhibits enhanced hardness and self-healing ability compared to conventional materials.
Researchers have successfully achieved low-threshold anisotropic polychromatic emission from monodisperse quantum dots by coupling them with microcavities, overcame technical bottlenecks for practical applications. This enables broadband gain, amplification, and even lasing, as well as full-color display and patterning.
Researchers have developed a novel method to overcome challenges in manufacturing thin-film perovskites suitable for micro-LED displays. The technique enables seamless integration into ultrahigh-resolution micro-LEDs with pixels less than 5 μm, achieving remarkable results including electroluminescence efficiency and brightness.
A new film made from a thorium precursor could replace crystals in atomic clocks, enabling more accurate time measurements. The film requires much less thorium-229 and is about as radioactive as a banana, paving the way for smaller, more portable, and cheaper nuclear clocks.
Researchers developed a spray coating that absorbs blue light and converts it to red light, increasing crop yield by up to 9% in field trials. The technology has the potential to extend greenhouse seasons, reduce energy consumption, and improve fruit taste.
Researchers at Pohang University of Science & Technology (POSTECH) developed a smart insect screen-inspired film that regulates solar heat and lowers interior temperatures. The breakthrough, published in Advanced Functional Materials, achieves both transparency and radiative cooling performance.
A NRL multi-disciplinary team developed a nonvolatile and reversible procedure to control single photon emission purity in monolayer tungsten disulfide by integrating it with a ferroelectric material. This novel heterostructure introduces a new paradigm for control of quantum emitters.
Researchers at Shanghai Jiao Tong University develop a novel method for broadband frequency conversion using X-cut thin film lithium niobate, achieving a bandwidth of up to 13 nanometers. This breakthrough enables on-chip tunable frequency conversion, opening the door to enhanced quantum light sources and larger capacity multiplexing.
A Japanese research team developed a new method for producing large-area nanosheets with exceptional electronic, optical, mechanical, and chemical properties. The 'spontaneous integrated transfer method' uses the spontaneous spreading phenomenon of wetted nanosheets to create uniform films in just one minute.
Researchers at Dartmouth College developed a technique using light to imprint 2D and 3D images inside any polymer containing a photosensitive chemical additive. The technology enables the creation of erasable 3D displays with high resolution, applicable in surgeries, architectural designs, education, and art.
Researchers develop a new method to grow single-crystal perovskite hydrides, allowing for accurate measurement of intrinsic H- conductivity. The technique enables the production of high-quality crystals with minimal imperfections, paving the way for sustainable energy technologies and hydrogen storage applications.
Researchers have developed a transparent nanostructured copper surface that is non-conductive, resistant to bacterial growth, and transparent. The surface shows the ability to eliminate over 99.9% of certain bacteria present in tested surfaces within two hours, maintaining its effectiveness even after rigorous wipe testing.
A new device achieves high-performance, stable RGB polarization with semipolar blue micro-LEDs and perovskite color conversion layers. The device exhibits significantly polarized PL emission with a DOLP of approximately 0.44. Perovskite-in-polymer films show enhanced stability and high photoluminescence quantum yield.
Researchers at Singapore University of Technology and Design have discovered how to produce sustainable colors using beetles that live in the dark. By understanding how these beetles' exoskeletons reflect light, scientists can create environmentally friendly materials for various industries. This breakthrough has significant implicatio...
Researchers have created an ultrablack thin-film coating that absorbs nearly all visible light, enhancing the performance of advanced telescopes and optical systems. The coating, developed using atomic layer deposition, is durable enough to withstand harsh conditions and has been applied to magnesium alloys used in aerospace applications.
Researchers create supramolecular ink, a game-changing technology for OLED display manufacturing, enabling more affordable and environmentally sustainable products. The material can also be used in wearable devices, luminescent art, and 3D printing.
Engineers at MIT have developed a new laser-based technique to probe metamaterial structures with ultrafast pulses, enabling the dynamic characterization of microscale metamaterials. The LIRAS system excites and measures vibrations in hundreds of miniature structures within minutes, accelerating the discovery of optimal materials for a...
Researchers develop a passive approach to night-time warming by harnessing energy from the atmosphere, reducing reliance on electric heaters and lowering energy consumption. The new strategy achieves significant temperature increases and annual electricity savings of over 300 kWh m-2 in various climate zones.
Scientists have developed perovskite photovoltaic cells with significantly improved optoelectronic properties using nanoimprinting method. The structure reduces optical losses and enables cheaper production on a large scale.
Scientists have developed a nonrelativistic and nonmagnetic mechanism for generating terahertz waves, harnessing the electrical anisotropy of two conductive oxides. This approach produces signals comparable to commercial terahertz sources and offers a high terahertz conversion efficiency.
A new approach boosts light absorption in thin silicon photodetectors with photon-trapping structures, increasing the absorption efficiency over a wide band in the NIR spectrum. The findings demonstrate a promising strategy to enhance the performance of Si-based photodetectors for emerging photonics applications.
A new approach enables the precise transfer of thousands of microscopic semiconductor devices in a single shot, paving the way for large-scale arrays of optical components. The method is scalable, inexpensive, and can be used to manufacture micro-LED displays with high accuracy and resolution.
Researchers at Tokyo Institute of Technology have successfully synthesized high-quality Cs3Cu2I5 thin films using a novel solid-state synthesis method. The team discovered that depositing CuI and CsI layers in specific ratios results in distinct local structures containing point defects, leading to highly efficient emissions.
A new optical coating system combines antifogging and antireflective properties, enhancing the performance of lidar systems and cameras. The technology, developed by Fraunhofer Institute for Applied Optics and Precision Engineering, has been tested in laboratory tests and has shown promising results.
Researchers at Brookhaven National Laboratory create a new way to guide the self-assembly of novel nanoscale structures using simple polymers as starting materials. The team describes their approach in a paper published in Nature Communications, which shows that different shapes have dramatically different electrical conductivity.
Researchers developed a new way to apply antireflective coatings to 3D printed micro-optical systems, reducing light losses and improving imaging quality. The low-temperature coating technique can be used for applications such as miniature fiber endoscopes and virtual reality devices.
Scientists at Nanyang Technological University, Singapore, have developed a durable coating that prevents fogging and 'self-cleans' under sunlight exposure. The coating shows excellent adherence to the plastic surface and maintains durability in tests, offering an attractive long-term solution for various applications.
A team at the University of Rochester has created a novel optical coating that can simultaneously reflect and transmit light of the same wavelength, a breakthrough that could improve the efficiency of solar energy devices. The Fano Resonance Optical Coating (FROC) technology enables precise control over color and could lead to signific...
A new process creates a graded index Teflon-air film that eliminates reflections, making transparent plastics nearly invisible. The technology has practical applications in solar panels, eyeglasses, and virtual/augmented-reality headsets.
Virginia Tech researchers create optoelectronic devices using ionically self-assembled monolayers, overcoming stability challenges in nonlinear optical materials. The breakthrough could lead to conformal coatings for Mach-Zender interferometers and enable new applications in laser systems and data storage.
Researchers have discovered that quantum dots repel each other, which may govern their self-organization and be crucial for controlling dot characteristics. This effect can help form more uniform and orderly arrays of dots, leading to improved lasing frequency and intensity.
A team of scientists discovered that polymer molecules in ultra-thin films of 14 nanometers retain their shape and size comparable to their bulk counterparts. This finding challenges previous simulations, which suggested minimal changes in molecular structure with decreasing film thickness.
Researchers use ultraviolet lamps to create thin polymer films with precise patterns, reducing convection issues that affect film uniformity. These films have the potential to replace electronic circuits in all-optical computer systems, increasing efficiency and compactness.
A Massachusetts Institute of Technology professor has developed a quick and easy test that can analyze thin films used in microelectronics components using an optical method. The device, which uses short laser pulses to generate ultrasonic waves, can measure film thickness to within one layer of atoms in one second.
Sandia researchers develop a simple way to relieve internal stresses in amorphous diamond films, creating thick, stress-free coatings that are harder than known coatings. The coatings have also been used to create large-area free-standing membranes with desirable properties such as high hardness and low friction.