Articles tagged with Light Propagation
Researchers created a hyperbolic metasurface using boron nitride that produces concave wavefronts with infrared light, revolutionizing the miniaturization of sensing and signal processing devices. The team overcame fabrication challenges to achieve precision structuring on the nanometer scale.
Harvard researchers have developed a technique to fabricate high-quality lithium niobate devices with ultralow loss and high optical confinement. This breakthrough opens the door to practical integrated photonic circuits for applications in quantum photonics, microwave-to-optical conversion, and more.
Researchers from the University of Würzburg have developed a new set of rules for creating optical antennas that can precisely control photon creation and emission direction. This breakthrough has the potential to enable tiny, multifunctional light pixels and reliable single-photon sources for quantum computers and optical microscopes.
A team of scientists from MSU developed a compact spectral polarimeter for studying the surface composition of astronomical bodies. The device operates in the near-infrared range and was tested on two minerals simulating lunar and Martian surfaces.
Researchers have developed a novel nanoscale optomechanical resonator that can detect torsional motion at near state-of-the-art sensitivity. The device also demonstrates torsional frequency mixing, impacting optical energies using mechanical motions.
Researchers developed a technique to efficiently control light in waveguides by decorating them with nano-antennas, achieving record-small footprints and broad wavelength ranges. This innovation has the potential to transform optical communications and signal processing, enabling faster and more powerful optical chips.
Chiral quantum optics reveals new effects of light's spin and momentum, enabling one-way optical diodes and circulators. This breakthrough could lead to novel applications in computing, quantum networks, and photonics.
A new material developed by Yuebing Zheng could lead to the creation of erasable and rewriteable optical chips. The material, which combines light-sensitive molecules with a plasmonic surface, allows for wireless erasure and rewriting of optical components.
Researchers used intensity interferometry to study light propagation in curved spaces, demonstrating the importance of surface curvature on geometry and physics. The findings have implications for astronomical observations and manufacturing techniques, potentially leading to new materials and optical systems.
Scientists have made significant progress in overcoming the challenges of creating a perfect lens using metamaterials. The team proposes a novel approach that utilizes negative index materials and plasmon-injection schemes to shield desired light waves, allowing them to pass through unscathed. This breakthrough has the potential to rev...
Researchers at Forschungszentrum Jülich develop a new method to examine light trapping in solar cells using near-field optical microscopy. They discover that the nature of nanostructures directly affects absorption rates and solar cell efficiency.
Dr. Kattawar's work on polarization and radiative transfer theory has advanced knowledge of the ocean's nature and consequences of light. He has received numerous teaching awards, mentored over 40 students, and served on academic advisory committees.
Scientists have developed a solid-state vacuum ultraviolet lamp that emits high-energy UV light at the shortest wavelengths ever recorded. This breakthrough promises smaller, safer, and longer-lasting lamps for sterilizing medical devices and cleaning semiconductor substrates.
Researchers have demonstrated the strongest signal yet of the photonic spin Hall effect using metamaterials, enabling control over light propagation and manipulation of information encoded on polarization. The finding opens up possibilities for new technologies, including highly coveted 'flat lenses' and management of light polarizatio...
A study by Purdue University researchers found that greenhouse bedding plant growers can increase profits by providing cuttings with sufficient light. The study showed that plants rooted faster and were of higher quality when exposed to more light.
Researchers have implemented topological photonic crystals that completely prohibit light wave back-reflections, allowing microwave light to propagate in a one-way structure. This concept may lead to reduced internal connections and improved performance in light-driven circuits.
The researchers have found donor-substituted cyanoethynylethene molecules exhibit one of the strongest nonlinear optical responses, approaching the fundamental quantum limit. These findings are promising for optical computing and all-optical networks, which could lead to more efficient ways to route signals and process information.
Scientists propose that light's origin is tied to tiny violations of Einstein's relativity, which can be tested experimentally. This new view holds promise for alternative understanding of light's behavior in various environments, including empty space and gravitational fields.
Researchers develop Infrared Search and Track system to enhance low-altitude target detection. The new system will complement existing radars, providing improved detection in low-visibility conditions.
Scientists from around the world collaborated to develop improved atmospheric aerosol models for predicting infrared propagation in coastal environments. The project aims to enhance sensor accuracy for detecting incoming threats such as missiles and submarine periscopes.