Articles tagged with Light Matter Interactions
Researchers at University of Cambridge develop a printing technique that can write structures small enough to trap and harness light. The method combines high-resolution inkjet printing with nanophotonics, enabling the creation of sensors, lasers, and compact optical circuits.
Researchers used advanced synchrotron measurement setup to study spin dynamics of ferrimagnetic thin films containing different proportions of gadolinium. They found that varying composition dramatically changed response to laser pulse, leading to improved switching speeds and precision.
The Cornell Center for Materials Research has been awarded $23.2 million in NSF funding for six years, a 26% increase from the 2011 award. This funding supports research projects focused on spin manipulation, light-matter interactions and 3D systems.
Scientists at MIT and their collaborators have developed a new approach to ultrafast light pulses by coupling molecular aggregates with thin layers of metals like silver. This enhancement increases the material's response time tenfold, making it suitable for applications in photonic chips and signal processing.
Researchers at Sandia National Laboratories have developed a new optical switch that can turn light on and off at trillionths of a second, enabling faster information processing. The breakthrough could also be used in biological imaging and chemical spectroscopy.
A team at MIT has created a system that can manipulate particles ranging from molecules to bacteria-sized objects using ordinary light. The researchers engineered asymmetrical particles, called Janus particles, which respond to the orientation of the beam and create forces that set them spinning uniformly.
Scientists have observed room-temperature superfluidity in light, a phenomenon previously only seen at extremely low temperatures. This breakthrough could lead to the development of new photonic devices with reduced losses and enhanced performance.
Researchers at University of Central Florida develop a new method to detect interactions between light and matter on a single layer of atoms, enabling the study of 2D materials and controlling light at subwavelength scales.
Researchers created photonic hypercrystals to control light-matter interaction, increasing light emission rate and intensity. This breakthrough could lead to advancements in Li-Fi, solar cells, and quantum information processing.
Researchers have developed a method to pattern materials with features as small as one nanometer, enabling the study of material properties at the atomic level. The technique has potential applications in materials engineering and could lead to the creation of new materials with unique properties.
A Korean research team develops high-performance silver nanowires with strong adhesion using flash light-material interactions. The Ag NWs demonstrate six times higher conductivity than pristine NWs, and their adhesion to substrates is enhanced by 310%.
Researchers have developed a new method to characterise internal structures of natural materials and replicate their interaction with light using 3D printing of ceramics. This technique enables the design of new materials with different functionalities dependent on need.
Researchers at Nagoya University have synthesized stable antiaromatic nickel norcorroles and investigated their interactions, revealing face-to-face interactions that form a triple-decker structure with aromatic characteristics. The resulting materials exhibit nonlinear optical properties and potential applications in optoelectronics.
A new technique enriches animations by simulating fine detail and smooth large-scale appearance of granular materials. The method, developed by Disney Research, ETH Zurich and Dartmouth College, significantly expands the number of grain types that can be rendered together.
Scientists mapped the probability of Rubidium atoms absorbing photons with rising and decaying shapes. The results show a significant increase in excitation at moments when the photon arrives dimly and ends brightly, indicating that photon shape plays a crucial role in light-matter interactions.
A team of experts from Sam Houston State University is developing a novel investigative tool using micro Raman spectroscopy to analyze inkjet printer signatures. The goal is to provide reliable leads in counterfeit cases while being time-effective and non-destructive.
A team of researchers from the University of Washington and the University of Arizona has received a $2 million NSF EFRI grant to study non-reciprocal elastic wave propagation in solids. The project aims to develop new materials with unique properties that could lead to breakthroughs in phononic information processing.
Scientists have created a mini electro-optical switch that can change the spin of a liquid form of light by applying electric fields to a semiconductor device. This technology bridges the gap between light and electricity, enabling faster and more powerful electronics.
Researchers from OIST Graduate University have developed a classical model to describe the phenomenon of strong coupling, challenging previous thoughts that it was a quantum effect. Strong coupling occurs when light and matter interact strongly, affecting both parties equally.
Scientists have developed a novel method to study the dynamics of electrons in solids when exposed to ultrafast light pulses. This breakthrough enables the precise optimization of energy transfer between light and matter, paving the way for faster electronic signal processing and potentially accelerating data processing to its limits.
Researchers have developed a nanocavity that increases the amount of light absorbed by ultrathin semiconducting materials, enabling more efficient electronic devices. The technology has potential applications in creating flexible solar panels and faster photodetectors.
Researchers at the Niels Bohr Institute have created a superfast light source using an artificial atom called a quantum dot. The innovation increases the interaction between light and matter, resulting in faster electron decay and more efficient light emission.
Researchers found that graphene efficiently shields chemical interactions by covering surface defects, reducing reactivity. This shielding enables controlled selectivity and activity of supported metallic catalysts on carbon substrates.
Researchers from Berkeley Lab demonstrate bright excitonic lasing at visible light wavelengths using a monolayer of tungsten disulfide in a microdisk resonator. The technology has potential for high-performance optical communication and computing applications, as well as valleytronic applications.
Scientists at Berkeley Lab have devised an ultra-thin invisibility 'skin' cloak that can conform to the shape of an object and conceal it from detection with visible light. The cloak, made of gold nanoantennas, reroutes reflected light waves to render the object invisible to optical detection.
A team of Lehigh University engineers has developed a novel approach for the reproducible biosynthesis of extracellular, water-soluble quantum dots using bacteria and cadmium sulfide. This method reduces cost and environmental impact by utilizing an engineered strain of Stenotrophomonas maltophilia to control particle size.
Researchers demonstrate a novel approach for generating new phases using high-pressure crystallographic studies of molecular materials. The study reveals the structural changes in α-Co(dca)2 under pressure, shedding light on its correlation with magnetic properties.
Researchers have successfully prevented black phosphorus from oxidizing, allowing for the exploitation of its extraordinary properties in various devices. The study's results, published in Nature Materials, will help develop new nanotechnologies with high-performance microprocessors, lasers, and solar cells.
By pairing graphene and hexagonal boron nitride, researchers can control light waves and create unique optical materials. This enables the development of tiny optical waveguides and new applications in infrared spectroscopy and imaging devices.
Scientists at UC San Diego have created thin films of material that produce a wide range of pure colors, from red to green, by arranging synthetic melanin nanoparticles. The colors are determined by the physical structure rather than pigments.
Researchers at Northwestern University have successfully increased molybdenum disulfide's light emission by twelve times by combining nanotechnology, materials science, and plasmonics. This breakthrough enables the material to be used in light emitting diode technologies and has potential applications in solar cells and photodetectors.
Researchers at Tel Aviv University have discovered novel nanoscale 'metamaterial' that could serve as future ultra-high-speed computing units. These nonlinear metamaterials can be used to develop active optical components essential to the manufacture of ultra-high-speed optics-based computer chips.
Scientists at OIST successfully demonstrated a more robust method for controlling single, micron-sized particles with light using higher order modes. The technique allows particles to move up to eight times faster along a microfiber, with applications in physics, biology, and quantum research.
Jon Schuller, UCSB assistant professor of electrical and computer engineering, is studying how light interacts with complex materials like plastics, which have unique optical properties. The research could lead to the development of new organic photonic devices with enhanced performance and low-cost semiconductors.
Researchers study polaritons in organic molecules strongly coupled with photons, finding they can remain at lowest energy levels for an unusually long time. This phenomenon opens the door to novel applications, including modifying optical, electronic and chemical properties.
A City College of New York led-team successfully demonstrated enhancing light emission and capturing light from metamaterials with light emitting nanocrystals. The breakthrough could lead to practical applications in ultrafast LEDs, nanoscale lasers, and efficient single photon sources.
Researchers at the University of Bonn have successfully observed the interaction of exactly two atoms in a light cage, contradicting the assumption that two atoms would behave differently from a single atom. The experiment reveals that backaction suppresses high light waves, limiting the emergence of photons.
Berkeley Lab researchers used trARPES to measure the ultrafast response of electron self-energy to photo-excitation in a high-temperature superconductor. The results show a link between electron-boson coupling and superconductivity.
Researchers have discovered a new quantum mechanism that triggers the emission of tunable light at terahertz frequencies, enabling unprecedented efficiency. This breakthrough uses asymmetric 2D nanostructures to enhance light emission in a challenging spectral range.
Researchers at the University of Pittsburgh have detected a fundamental particle of light-matter interaction in metals, known as an exciton. The discovery provides a microscopic quantum mechanical description of how light excites electrons in metals.
MIT researchers have successfully created devices that harness or emit light using a novel material called tungsten diselenide, which is just a few atoms thick. This breakthrough could lead to the development of ultrathin, lightweight, and flexible photovoltaic cells, LEDs, and other optoelectronic devices.
Scientists at the University of Vienna have unveiled the superconducting pairing mechanism in calcium-doped graphene using the Angle-resolved photoemission spectroscopy (ARPES) method. The findings reveal that calcium is the most promising candidate to induce superconductivity in graphene, with a critical temperature of about 1.5K.
Researchers have developed a new artificial metamaterial that increases the light intensity and blink speed of a fluorescent dye molecule, speeding up underwater optical communications by 76 times. The material could eventually replace acoustic communications systems for short distance applications.
Researchers at Helmholtz Association's HZB have identified a new area of application for X-rays in solid state physics, leveraging nonlinear physical effects. They observed the interaction between soft X-rays and solids, enabling enhanced color analysis and structural properties correlation.
A new, fast and accurate algorithm developed by Polish researchers can calculate the Chandrasekhar function with accuracy up to over a dozen decimal digits. This method is crucial for understanding physical and chemical properties of materials' surfaces studied under laboratory conditions.
Researchers have demonstrated that chaotic systems can store more light than ordered ones in optical cavities, with applications for quantum optics and solar cells. The study found a six-fold increase in energy storage in chaotic cavities, outperforming classical counterparts.
Researchers at Brown University are studying new optical materials to overcome size limitations in light-matter interactions at the quantum scale. Harnessing this power could enable technologies like high-capacity optical memory and secure encryption.
Researchers mapped how light behaves in complex photonic materials, breaking the limit of light resolution at the nanoscale. They developed a new technique combining electronic excitation and optical detection to explore the inside of a photonic crystal, revealing new insights into light-matter interactions.
Metamaterials can control light by imprinting properties on photons, paving the way for commercial applications in 5-10 years. This breakthrough also enhances microscopic capabilities to reveal nanofeatures to the human eye.
Researchers at Stanford University have developed a nanoscale nonlinear optical device that can be controlled electronically, offering potential applications in data communications and information processing. The device uses plasmonics to intensify light and produce a powerful electrical field.
Researchers have created a technique to control the speed and direction of light using memory metamaterials, which can repeatedly change their properties. This innovation enables the manufacture of Gradient Index of Refraction (GRIN) devices for imaging and communication technologies with unprecedented precision.
Researchers at the University of Pennsylvania have successfully increased light-matter coupling strength in nanoscale semiconductors, paving the way for designing faster and more efficient photonic devices. By fabricating structures with surface passivation techniques, they were able to overcome the limitation of bulk materials.
Researchers demonstrate first full quantum control of qubit spin in tiny colloidal nanostructures, advancing quantum computing and energy generation technologies. The discovery enables precise control over light-matter interactions, paving the way for more efficient photovoltaic cells and potential breakthroughs in climate change.
Researchers from NC State University have made significant advancements in understanding how light interacts with matter at the atomic scale. Their work could lead to faster and more energy-efficient computers by improving the analysis of materials' bonding properties.
Researchers uncover 'duality relations' between particle arrangements, enabling control of ground states and potentially creating novel materials with unique properties. The discovery could lead to materials that respond to light or mechanical stress in new ways, such as maintaining shape in extreme temperatures.
Researchers at the University of Bath discovered how photonic crystal fibre creates a broad spectrum of light, allowing for more efficient telecommunications and precise optical clocks. By understanding this mechanism, scientists can now manipulate the supercontinuum with greater precision.
Fred Schubert's Photon Recycling Semiconductor Light-Emitting Diode (PRS-LED) combines up to three wavelengths of light to produce highly efficient, long-lasting white light. The PRS-LED is 15-20 times more efficient than conventional bulbs and has a lifespan predicted to last up to 50 years.
Researchers at Lawrence Berkeley National Laboratory have successfully produced sub-picosecond pulses of synchrotron light, extending the spectral range from infrared to x-ray wavelengths. The technique enables scientists to capture atomic motion and chemical reactions on a timescale almost incomprehensibly short.
Researchers at Max-Planck Institute for Quantum Optics successfully produce novel molecule by trapping single atom between two mirrors with highly reflecting surfaces. The molecule is created when an individual atom absorbs a light quantum and forms a bound state, exhibiting periodic energy exchange with the light field.