Articles tagged with Optics
Researchers at KIT develop a meta-grating that allows for four times more efficient light control than conventional systems. This technology enables targeted control of light waves, reducing the size and weight of optical systems.
A cohort study found semaglutide use is associated with a higher risk of nonarteritic anterior ischemic optic neuropathy in people with diabetes. However, the retrospective design limits the study's ability to establish causality, necessitating further research.
Researchers at Wits University have discovered a way to protect quantum information from environmental disruptions, offering hope for more reliable future technologies. By engineering specific topological properties in quantum states, they can preserve critical information even when disturbed by noise.
A German-Italian team has discovered a way to simplify the experimental implementation of two-dimensional electronic spectroscopy, allowing for real-time study of electron motion in solids. By adding an optical component to Cerullo's interferometer, researchers were able to control laser pulses more precisely, enabling the investigatio...
Researchers tracked ultrafast structural changes of a molecule driven by excited-state aromaticity, revealing its emergence within hundreds of femtoseconds and facilitating planarization. The study provides new insights for designing photoactive materials like sensors and light-driven switches.
A team of international scientists co-led by NTU Singapore has discovered a way to manipulate water waves to trap and precisely move floating objects. The method involves generating complex surface patterns that can pull in nearby objects, allowing for precise control over their movement.
A new method of biometric authentication has been developed using hyperspectral imaging and AI to identify individuals through the unique patterns in their blood vessels on the palm of their hand. The technology shows great promise for secure personal identification and could potentially be used as a key to unlock homes.
Researchers at Tampere University and Kastler-Brossel Laboratory have demonstrated self-imaging of light in cylindrical systems, facilitating unprecedented control of light's structure. They also explore a new type of space-time duality, bridging different fields of optics.
A study published in JAMA Ophthalmology found a modest increase in the risk of nonarteritic anterior ischemic optic neuropathy among individuals with type 2 diabetes associated with semaglutide use. The findings suggest that further investigation is needed into the clinical implications of this association.
Researchers derived 2D coupled wave equations for photonic crystal surfaces, aiding the development of efficient laser devices. The findings established parallels between TM and transverse electric polarisation behaviours, offering unique advantages in certain configurations.
Researchers developed a novel technique called vectorial digitelligent optics for high-resolution non-line-of-sight imaging, overcoming traditional limitations such as intensity and shape deterioration. The new approach achieves improved resolution, image contrast, and signal-to-noise ratio in single- and multi-object NLOS imaging.
A team from Osaka Metropolitan University has developed a crystal patterning method that controls the position and orientation of photochromic crystals, known as diarylethenes. This breakthrough allows for the creation of convex structures with precise control over crystal shape and size.
Researchers used quantum squeezing to improve gas sensing performance of optical frequency comb lasers, doubling the speed of detectors. The technique allowed for more precise measurements with fewer errors, enabling faster detection of molecules like hydrogen sulfide.
Researchers developed a fast and accurate flexible optical skin that can read Braille. The sensor combines speed with accuracy, paving the way to improved accessibility for people with blindness.
The Laboratory for Laser Energetics at the University of Rochester has launched an IFE-STAR ecosystem to develop a clean, safe, and virtually limitless energy source. The initiative aims to accelerate fusion science and technology by building a national network of coordination and collaboration.
Researchers developed a software tool called clipping spline to visualize complex structures in 3D images. The tool provides unprecedented capabilities to analyze 4D OCT images of embryonic mouse heart development, revealing unseen dynamics and processes.
Researchers at Osaka Metropolitan University developed a simple method to measure deformations in thin membrane materials using photogrammetry and a single camera. This technology can accurately detect wrinkle size and wavelength, enabling more efficient spacecraft operations.
Researchers found that isolated atoms in free space cannot coordinate their photon emission and radiate collectively, unlike atoms in an optical cavity. The team used theoretical simulations to study the emergent properties of atomic clouds under varying laser power and atom density conditions.
Researchers develop hybrid materials to enhance optical signal conversion in transceivers, increasing data transmission rates while reducing energy consumption. The ATHENS project combines silicon with other materials to overcome limitations in pure silicon components.
A team at Osaka Metropolitan University has designed a multilayer device to investigate spin currents, using an organic semiconductor material with a long spin relaxation time. This allows direct observation of phenomena due to spin current generation and enables researchers to gain deeper insights into the properties of spin currents.
Researchers successfully visualized tiny magnetic regions, known as magnetic domains, in a specialized quantum material using nonreciprocal directional dichroism. They also manipulated these regions by applying an electric field, offering new insights into the complex behavior of magnetic materials at the quantum level.
Researchers developed a microchip that captures exosomes from blood plasma to identify signs of lung cancer, achieving 10x faster detection and 14x greater sensitivity. The chip uses twisted gold nanoparticles to distinguish between healthy patients and those with lung cancer.
Researchers at Tampere University have observed hidden deformations in complex light fields for the first time. These deformations carry significant information about the object, such as its material properties. The study has implications for measuring material properties with structured waves and will inspire new optical technologies.
Researchers induced fast switching between electrically neutral and charged luminescent particles in an ultra-thin, two-dimensional material. The result opens up new perspectives for optical data processing and flexible detectors.
Researchers from Osaka Metropolitan University have developed a method to detect coronavirus spike proteins quickly and selectively using a light-induced immunoassay. The technique uses a milliwatt-level laser and can complete the entire process in under 5 minutes.
Researchers developed a label-free biological sensing method that can detect substances at the zeptomolar level, significantly improving drug testing and research capabilities. This advancement has the potential to lead to portable sensors for environmental toxins, food quality monitoring, and cancer screening.
A team of researchers has developed a new way to study disorder in superconductors using terahertz pulses of light. They observed that the disorder in superconducting transport was significantly lower than previously thought, with stability up to 70% of the transition temperature.
Researchers at the University of Warsaw developed a quantum-inspired super-resolving spectrometer that uses latent information carried by photons to improve spectral resolution. The device offers over a two-fold improvement in resolution compared to standard approaches and has potential applications in optical and quantum networks.
Scientists at Chalmers University of Technology have successfully combined nonlinear and high-index nanophotonics in a single nanoobject, creating a disk-like structure with unique optical properties. The discovery has great potential for developing efficient and compact nonlinear optical devices.
Researchers used a common food dye to turn a live mouse's tissues transparent, allowing them to study internal organs and muscle contractions. The dye absorbs light in the near ultraviolet and blue regions, modifying tissue refractive index and enabling deeper transmission of red light.
Researchers have developed a new engineering approach to on-chip light sources, enabling the widespread adoption of photonic chips in consumer electronics. The innovation involves growing high-quality multi-quantum well nanowires using a novel facet engineering approach, which enables precise control over the diameter and length of the...
A new structure of light has been discovered that can accurately measure chirality in molecules, a property of asymmetry important in physics, chemistry, biology, and medicine. This 'chiral vortex' provides an accurate and robust form of measurement, allowing for the detection of chiral biomarkers.
A new graduate program at Rice University aims to equip students with skills needed to serve as leaders in quantum technology innovation. The program will provide interdisciplinary training to 30 students, combining expertise from quantum physics, optics, and nanotechnology.
Researchers developed Stain SAN, a novel domain adaptation technique to correct color differences in stained histopathology images. The method improves consistency and comparability of data, leading to better performance in machine-learning-based classifiers.
A team from Osaka Metropolitan University has created a way to control the growth of crystals on metal-organic frameworks thin films, reducing light scattering and resulting in high-quality films. These advanced films are expected to be used as optical sensors, optical elements, and transparent gas adsorption sheets.
The TIFR team developed a method to measure the temporal shape of ultrashort laser pulses using spectral interferometry, enabling precise measurement of pulse profiles at different points across the beam. This breakthrough is essential for handling increasingly powerful lasers that emit pulses and can distort optical components.
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.
Researchers at UBC created a new super-black material using plasma etching, absorbing up to 99% of visible light. The material, called Nxylon, has potential applications in astronomy, solar cells, and luxury consumer goods.
Researchers at Osaka Metropolitan University have developed a new laser-induced forward transfer technique using optical vortex to print magnetic ferrite nanoparticles with high precision. The resulting crystals exhibit helix-like twisted structures that can be controlled by changing the optical vortex's helicity.
Researchers at the University of Melbourne have developed a compact, high-efficiency metasurface-enabled solenoid beam that can draw particles toward it. The technology has the potential to reduce pain and trauma associated with current biopsy methods.
Researchers at Max Planck Institute propose a new method for implementing neural networks with optical systems, which could lead to faster and more energy-efficient alternatives. The approach allows for parallel computations in high speeds limited by the speed of light, and can be applied to various physically different systems.
Researchers have discovered that photo-excited YBa2Cu3O6.48 expels a static magnetic field from its interior, comparable to equilibrium superconductivity. This finding suggests that tailored light pulses can be used to synchronize fluctuating states and restore superconducting order at higher temperatures.
Researchers developed a novel method to estimate modulation amplitude and determine spatial resolution in Brillouin optical correlation-domain reflectometry (BOCDR) without costly equipment. This innovation simplifies the process, reducing costs and enhancing convenience.
Researchers at HHMI's Janelia Research Campus have adapted a phase diversity method from astronomy to microscopy, generating clearer images of thick biological samples. The new method is faster and cheaper to implement than current techniques, making adaptive optics more accessible to biologists.
Researchers at TMOS have developed a new infrared filter thinner than cling wrap, which can be integrated into everyday eyewear, allowing users to view both visible and infrared light spectra. This breakthrough miniaturizes night vision technology, opening up new applications in safety, surveillance, and biology.
Researchers have created organic flexible optoelectronic devices using acicular organic crystals with integrated elastic-bending, plastic-twisting, and acid-bending deformations. The crystals can selectively control their emission color between green and deep red when exposed to protonic acid vapor.
Researchers have developed a new material that can twist light at extremely high temperatures, opening up possibilities for advanced optical devices. This breakthrough could enable better aircraft flight performance and create multifunctional devices for various industries.
Researchers captured a volcanic event on Io using the Large Binocular Telescope's SHARK-VIS instrument, achieving higher resolution than ever before with Earth-based observations. The images reveal surface details equivalent to taking a picture of a dime-sized object from 100 miles away.
Dariusz Stramski has made significant impacts on ocean optics with his research spanning radiative transfer and innovative technologies. His work has explored interactions of light with marine particles and has developed novel reductionist concepts to advance inverse optical models.
Researchers created a topological quantum simulator device that operates at room temperature, allowing for the study of fundamental nature of matter and light. The device has the potential to support the development of more efficient lasers.
Researchers at the University of Rochester developed a new microcomb laser design that provides low power efficiency, high tunability, and easy operation. The simplified approach enables direct control over the comb with a single switch, opening up potential applications in telecommunications systems, LiDAR for autonomous vehicles.
Researchers have developed a new device that can determine photon pair properties in a single shot, improving precision and accuracy in quantum technologies. The metasurface-enabled multiport interferometer reduces size, weight, and power while increasing reliability.
Scientists at the University of Rochester have developed a technique for pairing particles of light and sound, allowing for faithful conversion of information stored in quantum systems. The method uses surface acoustic waves, which can be accessed and controlled without mechanical contact, enabling strong quantum coupling on any material.
Scientists at Harvard John A. Paulson School of Engineering and Applied Sciences have developed a compact, single-shot polarization imaging system that can provide a complete picture of polarization. The system uses two thin metasurfaces to capture the most complete polarization response of an object in real-time.
Lan Yang and Jie Liao demonstrate a transformative approach to overcome limitations of whispering-gallery-mode (WGM) resonators, enabling simultaneous monitoring of multiple resonant modes within a single WGM resonator. This allows for greater resolution and accuracy in detecting molecules, with a potentially limitless range of measure...
A new study shines light on the properties of hexagonal boron nitride, a material used in electronic and photonics technologies. The research reveals fundamental energy excitation occurring at 285 millielectron volts, triggering single photons in harmonic electronic states.
Researchers from the University of Copenhagen have developed a new method for measuring time using superradiant atoms, which could improve precision in areas like GPS systems and space travel. The technique uses superradiance to read out atomic oscillations without heating up the atoms.
Researchers upgraded a photoelectron momentum microscope to use two undulator beamlines, enabling element-selective measurements and precise analyses of valence orbitals. This innovation provides deeper insights into the behavior of electrons in materials, advancing fields like condensed matter physics and materials science.
A team of researchers from the University of Rochester used adaptive optics to identify rare retinal ganglion cells that could help explain how humans perceive color. These non-cardinal RGCs may work in tandem with cardinal RGCs to create more complex color perceptions.
Researchers at Linképing University have developed a digital display screen where LEDs react to touch, light, fingerprints, and the user's pulse, among other things. The screen can also be charged through the screen due to its ability to act as solar cells.