Articles tagged with Transformation Optics
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.
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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.
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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 new perspective highlights emerging household contaminants that may increase the risk of heart disease, cancer, and developmental problems. The authors emphasize the need for systematic monitoring and research to inform next-generation indoor air standards.
Researchers at UCR have discovered a way to break salt-water bonds using high-frequency ultraviolet light, offering a non-photothermal alternative to traditional solar desalination systems. The breakthrough could reduce the need for energy-intensive saltwater treatment and address concentrated brine waste.
Researchers propose IncepHoloRGB, a lightweight unsupervised CGH model generating high-definition RGB holograms through a unified framework. The model combines depth-traced superimposition and Inception sampling block to enhance computing efficiency and visual impression.
The new Harvard device can turn purely digital electronic inputs into analog optical signals at high speeds, addressing the bottleneck of computing and data interconnects. It has the potential to enable advances in microwave photonics and emerging optical computing approaches.
Researchers at Heriot-Watt University discovered a way to manipulate the optical properties of light by adding a new dimension—time. This breakthrough enables extraordinary light transformations, including amplification and quantum states, with ultra-fast pulses of light.
Researchers developed a new 2D quantum sensing chip using hexagonal boron nitride that can simultaneously detect temperature anomalies and magnetic fields in any direction. The chip is significantly thinner than current quantum technology for magnetometry, enabling cheaper and more versatile sensors.
Scientists have developed a new chip that can transfer different optical states to switch light flows using supersymmetry. The approach enables broadband continuous transformation of light spatial characteristics, opening up avenues for advanced photonic functionalities.
Researchers at Rice University have created a 'metalens' that transforms long-wave UV-A into a focused output of vacuum UV radiation. The technology uses nanophotonics to impart a phase shift on incoming light, redirecting it and generating VUV without the need for specialized equipment.
Researchers have achieved triple-wave cloaking for both sound and light using computational inverse design method. This breakthrough expands the functionality of biphysical cloaks, enabling a wider range of materials to be used, including those beyond traditional metals.
Researchers have discovered a new material, α-MoO3, that can be used to create invisibility concentrators with improved performance and lower production costs. The study suggests the use of α-MoO3 to control energy flow and scatter light, enabling the creation of devices with near-perfect invisibility.
A research team at the University of Delaware has designed an integrated photonics platform with a one-dimensional metalens and metasurfaces, limiting information loss and enabling high signal transmission. The device demonstrates functionalities of Fourier transformation and differentiation, critical techniques in physical sciences.
Researchers at Chalmers University of Technology have designed a material that manipulates the Cherenkov cone to distinguish between common and rare particles. The material uses transformation optics to create distinct light cones for particles with high momentum, making it possible to efficiently separate and identify these particles.
A team of researchers in China has created a new artificial surface that can bend and focus electromagnetic waves like an antenna. The breakthrough, described as the first broadband transformation optics metasurface lens, may lead to flat or ultra-low profile antennas.
Transformation optics tackles challenges in plasmonic devices by transforming complex structures into canonical ones, facilitating accurate modeling and design. This enables the development of efficient light-harvesting nanostructures with strong near-field enhancements.
The article reviews alternative target-oriented invisibility strategy, referred to as an 'inverse design', which integrates the technical advantages of forward strategies. This approach uses anisotropic materials and non-superluminal propagation to provide cloaking performance with a relatively broad bandwidth.
Researchers have developed a 'thermal' approach to invisibility cloaking that isolates or cloaks objects from sources of heat. The method uses transformation optics to control thermal diffusion, allowing for the shielding of areas from heat and the concentration of heat in small volumes.
Researchers developed a 3D invisibility cloak that guides light waves around an object, making it invisible to the human eye. The cloaking material is structured in the nanometer range and has precisely defined thicknesses, enabling it to manipulate light waves with unprecedented precision.
GRIN plasmonics combines transformation optics and plasmonics to control strongly confined light waves. The technique uses an isotropic dielectric material on a metal substrate to create efficient plasmonic devices, including Luneburg and Eaton lenses.
Researchers from Berkeley Lab and UC Berkeley have developed a novel approach to transformation optics, allowing for the manipulation of near-field optical waves on uneven surfaces. This breakthrough enables the design of plasmonic devices such as beam splitters, shifters, and directional light emitters.
The new field of transformation optics harnesses nanotechnology and metamaterials to manipulate and control light at all scales. Researchers envision applications such as electromagnetic cloaks, ultra-powerful microscopes, and faster computers that use light instead of electronic signals.