Articles tagged with Light Scattering
Researchers at Harvard SEAS create device that can shape near-field light into various forms using waveguide reflectors. The resulting shapes can be used for ultra-high-resolution microscopy, particle manipulation and sensing applications.
A color-multiplexed holography system has been developed to record 3D information of objects illuminated by a white-light lamp and self-luminous specimens as a single multicolor hologram. The system acquires color 3D information with only a single-shot exposure and no color filter array.
A team of researchers has made significant progress in developing a quantum body scanner that can detect cancer with high accuracy. By analyzing the transmission of vector vortex beams through scattering media, they have overcome major hurdles in biomedical imaging. The study's findings suggest that vector vortex beams can preserve the...
Research from Tokyo University of Agriculture and Technology found that light pollution can significantly increase the number of insects consumed by invasive cane toads. The study, published in Scientific Reports, used outdoor enclosures with artificial lights to test the impact on the toad's diet.
A University of Central Florida researcher has developed a new display technology that mimics the colors of butterfly wings, creating ultra-high-definition screens with extremely low power consumption. The technology uses nanoscale structures to scatter and reflect light, producing more natural-looking images without harsh glare.
A new easy-to-use smart optical film technology has been developed, enabling smart windows to switch between transparent and opaque states. The film demonstrates high speed and performance, allowing for fast switching and uniform tinting while securing durability, stability, and safety.
Researchers have developed 3D-printed coral-inspired structures that can grow dense populations of microscopic algae, opening up new applications for coral conservation and bioenergy. The innovative technology mimics the symbiotic relationship between corals and algae, with microalgae producing sugars to the coral through photosynthesis.
Researchers have successfully observed topologically protected light waves propagating along a special boundary in a photonic crystal, unaffected by sharp corners or imperfections. This breakthrough enables the development of optical chips with enhanced reliability and potential for quantum information transfer.
A new microscopy technique allows researchers to follow individual proteins over long periods of time as they move along and inside live cells. The technique, called interferometric scattering (iSCAT) microscopy, can track proteins with microsecond speeds for extended periods.
Scientists at Washington University in St. Louis have created an optical resonator system that can turn transparency on and off, allowing for control over a process called electromagnetically induced transparency. This technology has far-reaching implications for applications such as quantum computing, communications, and more.
Astronomers have spotted a distant galaxy group, EGS77, driving the cosmic makeover of reionization. The trio of galaxies is seen in near-infrared light due to its distance and age, which dates back to 680 million years old.
Researchers at KAUST have developed a novel method for quantitative phase and intensity imaging in microscopy, overcoming limitations of existing techniques. This new approach enables high-resolution images to be acquired quickly and accurately using affordable optics and common light sources.
Artificial light at night negatively impacts thousands of species, causing global declines in abundance. Experts recommend turning off unnecessary lights, using motion-activated fixtures, and selecting amber-colored lights to curb light pollution and preserve insect populations.
A new technique captures and analyzes indirect light to reveal previously unseen details just under the surface, including blood vessels. The method uses commercially available cameras to create images at extraordinary resolution, improving diagnosis and treatment outcomes.
Researchers developed a new technique called complementary vibrational spectroscopy to study molecular structures. This method combines infrared absorption and Raman scattering spectrometers to provide detailed information about molecular vibrations.
Researchers have developed a new generation of integrated circuits that utilize the interaction between light and sound to revolutionize 5G networks, sensor systems, satellite communication, radar systems, and radio astronomy. This third-wave technology offers immense technological applications and opportunities for pure scientific inv...
Engineers at the University of Illinois have found a way to redirect misfit light waves to reduce energy loss during optical data transmission. By exploiting an interaction between light and sound waves, they were able to suppress backscattering in silica glass, a common material used in fiber optic cables.
Engineers at Duke University have developed a method to extract color images from a single exposure of scattered light. The technique uses a coded aperture and prism to separate spectral bands, allowing for the reconstruction of nuanced colors in images.
Researchers have developed a hybrid device that uses near-infrared light to monitor blood flow, providing a quick and noninvasive diagnosis of cerebral ischemia. The device can record comprehensive profiles of hemodynamics, improving treatment effectiveness within the first few hours of stroke onset.
Researchers at The Met and UNM unveil the groundbreaking study on daguerreotypes' properties, explaining how nanoparticles determine image tone and color. The breakthrough paves the way for novel approaches to color printing technologies and informs preservation protocols.
Deep-sea dragonfish have evolved transparent teeth with nanostructured nanocrystals, allowing them to capture prey effectively in the dark depths. The unique adaptation helps the fish avoid being shunned away by its own huge teeth.
Researchers argue that Spain's current regulations on light pollution are inadequate and propose a change in approach to minimize the problem. Using white light instead of yellow light can provide significant energy savings while maintaining user safety, with potential benefits for environmental and economic aspects as well.
Researchers from EPFL developed a new holographic technique that can encode quantum information in a nanostructure, enabling high-resolution imaging of electromagnetic fields and manipulating the quantum properties of free electrons. This breakthrough has significant implications for quantum computing applications.
Researchers at Tokyo Institute of Technology have discovered a way to make submicron-sized cylinders disappear using optical frequency illumination. This breakthrough could lead to new kinds of detectors and sensors for the medical and aerospace industries, without the need for expensive metamaterial coatings.
Physicians at the University of Vienna have developed a novel method to cool nanoparticles using quantum optics, enabling unprecedented control over particle motion in ultra-high vacuum. The approach, inspired by atomic physics, harnesses scattered light from an optical tweezer to effectively cool particles' kinetic energy.
Researchers have developed special light harvesters that can convert ambient indoor lighting into usable energy, potentially powering wireless devices in homes and offices. The technology uses organic photovoltaics to optimize the use of artificial room lighting, which is abundant but often underutilized.
Researchers have developed a method to build an anti-laser based on random scattering, which can absorb light of a specific color and dissipate energy. The new approach has been confirmed by experiments in cooperation with the University of Nice and opens up possibilities for various scientific and engineering applications.
Researchers use hyperbolic metamaterials to 'fingerprint' and obtain spatial and material information about nanometer-scale objects. The method resolves features down to 20 nanometers apart, potentially finding applications in biomolecular measurement and industrial product monitoring.
Researchers at USTC successfully observe scattering resonances between atoms and molecules at ultralow temperatures, advancing ultracold polar molecules and chemical physics. The new insights aid in designing high precision clocks, powerful microscopes, and quantum computers.
A team of researchers has successfully demonstrated the 'strong-coupling regime' between light and high-frequency acoustic vibrations in a tiny glass structure. By overcoming friction-like processes, they were able to observe signatures of the light-sound dance and pave the way for future experiments at near-absolute zero temperatures.
Researchers at Rice University have discovered a way to control the output of gold nanoparticles using circularly polarized light. By changing the handedness of the light input, they found they could change the intensity of the scattered light by up to 50%, opening up new possibilities for ultrasmall optical components and antennas.
Researchers developed a new optical gyroscope that detects phase shifts 30 times smaller than previous systems, enabling miniaturization to a chip smaller than a grain of rice. The Sagnac effect relies on detecting differences between two beams traveling in opposite directions.
Researchers at Duke University have developed a new technique to reconstruct sequence of diffuse images from one long photographic exposure. By using a coded aperture, they can extract individual frames from a single, scattered exposure, overcoming limitations such as motion and constant scattering medium.
Aristide Dogariu and his team at the University of Central Florida have developed a new sensing method that can passively detect objects even when direct vision is impeded. This technique uses subtle similarities in scattered light to recover information about an object's presence, eliminating the need for controlled illumination.
Researchers at the University of Nebraska-Lincoln have successfully accelerated plasma electrons almost instantly to speeds close to the speed of light using intense laser light pulses. The new application, dubbed an 'optical rocket,' boasts a force nearly trillion-trillion times greater than what astronauts experience in space.
A new protective metamaterial 'cladding' prevents light from leaking out of curvy pathways in computer chips, allowing for more efficient processing. This breakthrough enables the integration of photonic with electric circuitry, increasing communication speed and reducing power consumption.
Scientists have observed anomalously high gas flow rates through angstrom-scale slit-like channels, defying classical Newtonian theory and highlighting quantum effects. The findings, published in Nature, suggest that surface scattering can significantly impact gas permeation rates.
A new chemical sensing chip can detect cocaine, opioids and marijuana in biological samples quickly and accurately. The low-cost chip uses surface-enhanced Raman spectroscopy to identify chemicals based on their unique light-scattering signatures.
Researchers at UC Davis developed a new technique using conventional digital camera technology to measure brain blood flow. The method, called interferometric diffusing wave spectroscopy, boosts the signal to detect fluctuations in blood motion, providing valuable information about blood flow.
Researchers have developed a new method for weighing single molecules using light scattering, enabling the measurement of mass with high accuracy. This breakthrough has potential applications in fields such as protein-protein interactions, drug discovery, and point-of-care diagnostics.
A team of scientists at the University of Cambridge has created a super-thin, non-toxic, lightweight, edible ultra-white coating that mimics the structure of beetle scales. The material scatters light extremely efficiently, producing bright white colours without the need for pigments.
A Rice University-led team has been awarded $10 million by the NSF to create wearable and point-of-care microscopes that can monitor nearly 100 health conditions without invasive procedures. The technology aims to provide real-time, non-invasive imaging of tissues using on-chip illumination and sensing.
Researchers at Carnegie Mellon University are part of a $10 million program to develop a new type of camera that can peer deep beneath the skin to diagnose and monitor various health conditions. The camera uses computational scatterography to make sense of scattered light, enabling noninvasive bio-optical imaging at a cellular scale.
A team of scientists at OIST has created a new biosensing material that can detect interactions at the molecular level, allowing for real-time monitoring of cell proliferation. The material uses gold nanostructures coated with silicon dioxide and capable of detecting extremely low concentrations of substances.
Researchers at UC San Diego and UC Berkeley developed a method that dramatically improves the simulation of fur in computers, using subsurface scattering to mimic how light interacts with fur fibers. The new algorithm is 10 times faster than existing models and produces more realistic simulations.
Researchers discovered that silk fibers exhibit Anderson localization of light, a phenomenon that enables efficient control of light due to their nano-architecture. This discovery could lead to innovations in medical therapies and biosensing, as well as the creation of synthetic materials with similar properties.
Scientists at the University of Pittsburgh developed glass with high levels of haze and light transmittance, making it suitable for improving solar cell efficiency. The glass can be switched from hazy to clear by applying water, potentially leading to cost-effective smart windows.
Researchers from Russia, Sweden, and the US demonstrate a highly unusual optical effect by creating a transparent material that appears to absorb light. The material, made of a thin layer of a transparent dielectric, accumulates light energy through mathematical properties of the scattering matrix, making it appear perfectly absorbing.
Researchers have confirmed that the average path length of light in opaque media is always the same, regardless of transparency. This result has implications for our understanding of wave propagation in disordered media and has potential applications in various fields.
Researchers have successfully developed a method to analyze microscopic structures using incoherently scattered light, improving the analysis of small-scale biological systems. The technique has the potential to enhance imaging capabilities in fields like biology and medicine.
Researchers successfully created a hybrid WO3-TiO2 nanotubes film using electrochemical anodization, achieving high photocatalytic reduction performance. The film's high specific surface area and geometric surface area factor contribute to enhanced light absorption and charge carrier generation.
The researchers have demonstrated the first laser cavity that can confine and propagate light in any shape imaginable, even pathways with sharp bends and angles. This new design could enable higher speed optical communication technologies.
Scientists have developed a camera that uses advanced photon detection technology to track the location of endoscopes in real-time. This allows doctors to guide the endoscope to the correct place without using expensive methods like X-rays.
Researchers in the Netherlands have created efficient green solar panels using soft imprint lithography, which scatter green light and maintain a 10% power reduction. The technology has potential to widen solar panel use as an architectural design element.
Researchers at Texas A&M University have developed a new method for propagating light through human tissue, enabling deeper brain imaging and potential applications in medical imaging and driving safety. The technique involves making tiny holes to pass light through, increasing optical transmission by a factor of 100.
A technique called digital holographic microscopy, which uses lasers to record 3-D images, may be used to spot extraterrestrial microbes on Enceladus. The method could help identify living cells by analyzing motion and chemical composition.
Scientists have developed a new method for detecting extremely small amounts of DNA using associating and dissociating nanodimer analysis (ADNA). The method can differentiate true signals from noise and detect deviations of individual bases, with a detection limit of about 46 DNA copies.
Physicists have observed changes in a vision-enabling interaction between light and matter by focusing laser light to unprecedented brightness. The team discovered unique X-ray pulses with potential for medical, engineering, scientific, and security applications.
Researchers developed a silicon photonic device that can exploit the scattering of light by mechanical vibrations, called Brillouin scattering. The device uses two silicon microdisks with tiny cavities, enabling light and mechanical waves to interact at high frequencies.
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.