Articles tagged with Light Polarization
Chinese scientists summarize the latest progress of CPL-active organic micro-/nano-structures, which can reduce energy loss in displays and photonic technologies. The review discusses design principles, external stimuli regulation, and potential applications, including OLEDs, optical information recording, and sensing technologies.
Scientists develop a generic approach to generate arbitrary vectorial optical fields (VOFs) using metasurfaces, offering improved efficiency and control over polarization. They experimentally demonstrate the generation of VOFs in both far-field and near-field regimes with tailored wave fronts and inhomogeneous polarization distributions.
A novel cancer diagnosis technique using circularly polarized LEDs can detect precancerous lesions and early cancer, providing valuable information for treatment decisions. The method uses spin-LEDs to emit circularly polarized light, which interacts with healthy and unhealthy cells differently.
Stretching shape-memory polymers with clusters of gold nanoparticles alters their optical properties, enabling the tracking of thermal history. The material's shape can be recovered by measuring changes in its optical properties, making it a potential sensor for monitoring temperature and ensuring material quality.
Astronomers have captured the first-ever image of a black hole's magnetic fields, revealing that polarized light reveals the structure of these fields just outside the event horizon. This breakthrough observation will help scientists understand how energy is extracted from spinning black holes to produce powerful jets.
Researchers have developed a method to create arbitrary dimensional quantum-like classical light directly from a laser, enabling the control of high-dimensional classically entangled states. This breakthrough opens up new possibilities for applications in quantum metrology, error correction, and optical communication.
Researchers Adam Overvig and Andrea Alù show that strict periodicity is not required for Fano resonances, enabling novel properties in metasurfaces. They demonstrate a nonperiodic metasurface with perfect reflection and phase conjugation, opening up new applications in optics and beyond.
Scientists have proposed an effective approach to achieve full Poincaré sphere polarizers in one step using monolayer metasurfaces with arbitrary polarization conversion dichroism. The system can generate an arbitrarily polarized beam at any position on the Poincaré sphere, making it a monolithic arbitrary polarization generator.
Researchers at the University of Warsaw have demonstrated how to structure light to exhibit collective spin behavior like a ferromagnet. They trapped light in a thin liquid crystal layer between mirrors and observed first-order and second-order merons and anti-merons, which can be used to study complex systems.
Researchers develop technique to precisely place and orient DNA-based molecular devices on chip surfaces. The method enables thousands of molecules to be reliably oriented, opening up new possibilities for applications like DNA sequencing and protein measurement.
Researchers at NC State University developed a new approach to design photonic devices, controlling light direction and polarization from thin-film LEDs. This technology paves the way for lighter, more efficient VR and AR headsets with improved efficiency and clearer views of the real world.
Researchers at NIST have developed a compact optical platform to cool atoms, enabling the creation of super-accurate atomic clocks and quantum devices. The miniaturized system uses flat optics and a metasurface to efficiently interact with and cool large collections of atoms.
A research team at Pohang University of Science & Technology developed a switchable display device using nanostructures that can encrypt full-color images depending on the polarization of light. The device boasts high resolution (approximately 40,000 dpi) and wide viewing angle while being thin.
A new method to measure polarization angle developed, achieving precision twice that of previous work. A hint of parity symmetry violation found in the cosmic microwave background radiation with 99.2% confidence level.
Scientists have developed a natural potassium-tantalate-niobate (KTN) perovskite nonlinear photonic crystal with 3D spontaneous Rubik's domain structures, enabling compensation of phase-mismatch along arbitrary directions. This breakthrough paves the way for new applications in optical communications, quantum entanglement sources, and ...
Researchers developed a new photodiode that can detect circularly polarized light without a filter, enabling higher sensitivity and miniaturization. This technology has the potential to reveal previously unidentified information about object surfaces, including stress intensity and distribution.
Researchers from KIST and PNU developed an encryption device that detects circularly polarized light to strengthen IoT security. The device uses a phototransistor with cholesteric liquid crystal and π-conjugated polymer, exhibiting high sensitivity in detecting circular polarization.
Researchers at Rice University and Politecnico University have demonstrated the first nanophotonic platform capable of manipulating polarized light 1 trillion times per second. The platform uses plasmonic metasurfaces to exploit ultrafast electronic mechanisms, enabling faster data transmission rates.
Researchers have developed a camera that can film 3D movies at 100 billion frames per second, capturing ultrafast imagery with stereo-polarimetric compression. The camera uses polarization information to enhance its capabilities and may help scientists study sonoluminescence.
A new technique realizes PT symmetry in a single spatial resonator by manipulating polarization-dependent response, enabling effective suppression of sidemodes and stable single-mode lasing. The proposed polarimetric PT symmetry concept opens avenues for non-Hermitian photonic systems with various optical parameters.
Researchers developed tiny optically powered machines that self-assemble and can manipulate tiny cargo for applications like nanofluidics and particle sorting. The machines use circularly polarized light from a laser to create a nanoparticle array acting like a gear, influencing nearby particles to orbit the array.
Researchers at Arizona State University have developed a method to examine proteins in keen detail, using surface plasmon resonance (SPR) and innovative microscopy techniques. This new technique resolves single molecules, including proteins, with high sensitivity.
Scientists at Tokyo Tech and ICFO develop a method to generate circularly polarized light from a sphere by breaking its symmetry through electron beam excitation. This enables the precise control of phase and polarization, paving the way for novel quantum communication and encryption technologies. The approach has been experimentally v...
Researchers at NIST create nanoparticles that can trap, emit specific colors, and alter polarization, allowing for precise control over the intensity of transmitted light. This technology has potential applications in improving optical communications and making currency harder to counterfeit.
Scientists at Nagoya University found that a thin top layer of azobenzene-containing plastic film needs to be light-sensitive to induce movement. The discovery could lead to cost reductions and revolutionize the material's use in various industries.
Scientists create hierarchical assembly of dye molecules in a host-guest hybrid metal-organic framework to achieve up to three-wavelength single-mode polarized lasing. The resulting three-color single-mode lasing has a large wavelength coverage of ~186 nm and a low threshold of ~1.72 mJ/cm2.
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...
Researchers at Rice University have discovered trochoidal dichroism, a novel type of polarized light-matter interaction. The discovery reveals that different wavelengths of light interact differently with plasmonic nanoparticles, which could help study molecules and determine molecular orientation.
Researchers at CIC biomaGUNE have developed a mechanism to deposit gold atoms onto gold nanorods in a helicoidal structure, producing
Researchers from Harvard John A. Paulson School of Engineering and Applied Sciences designed a metasurface that can continuously tune from linear to elliptical birefringence, opening up the entire space of polarization control with just one device.
Scientists create magneto-plasmonic nanoantennas with hybrid high-order multi-polar dark modes, enabling unprecedented control of light polarization. The resulting amplification enhances the magneto-optical activity, overcoming previous limitations and opening new avenues for nanophotonic applications.
Researchers from China established a general strategy to guide design of optical metasurfaces with fully controlled angular dispersions. They demonstrated the importance of near-field couplings and radiation patterns in determining these dispersions.
Researchers design an experiment to demonstrate chirality-dependent optical lateral force on microparticles, achieving robust bidirectional sorting and reversible optical lateral forces. The study opens new avenues for direct detection and sorting of microparticles with imperceptible chemical differences.
Researchers at the University of Pennsylvania have developed a system that can manipulate and detect orbital angular momentum, or OAM, of light on small semiconductor chips. This breakthrough enables the transmission of multiple distinct OAM modes, potentially shattering the bandwidth bottleneck in optical communications.
Researchers fabricate crystal that flips back and forth in response to lighting conditions, enabling complex task prosecution. The discovery sheds light on the arrangement of azobenzene molecules within the crystal, which plays a crucial role in initiating the periodic behavior.
Researchers from the University of Tsukuba have synthesized branched polymer crystals that can be used as tiny laser sources, overcoming dendrimers' fragility and poor crystallinity. The new material exhibits lasing properties and shows promising potential for applications in displays and micro-optical circuits.
The new method uses a combination of undulators and TRIBs to switch the helicity of X-ray pulses, enabling faster XMCD experiments with intervals as short as 1 microsecond. This breakthrough could lead to improved imaging techniques for magnetic data storage devices.
Researchers from China and Australia introduce the O-FIB technique, enabling high-resolution nano-writing in solid materials. The method uses far-field-induced near-field breakdown for direct nanowriting, achieving resolutions as low as sub-20 nm.
Researchers combined data from radio and optical telescopes to determine the origins and nature of quasar light. By measuring the polarization, they can tell which part of radiation came from the jet and determine its direction.
Physicists have induced and measured nonsymmetrical states in a layered material using circularly polarized mid-infrared light. This phenomenon, known as chirality, can be controlled and enhanced by shining the light beam at specific conditions, demonstrating a new tool for manipulating electronic behavior in materials.
Scientists have created valley-coherent photoluminescence in tungsten disulfide flakes using a silver sawtooth nanoslit array. The results achieve coherent and polarized light at room temperature, paving the way for integrated nanophotonics.
Researchers demonstrate direct emission of orthogonal handed circular polarization from achiral luminophore using liquid crystalline phase. The twisted structure allows for the generation of CP light with various polarization states.
Researchers have developed a portable, inexpensive, and easy-to-use microlens that simultaneously acquires 3D space and polarization information. This allows for the creation of 4D images with improved depth resolution, potentially enabling applications in medical imaging, communications, displays, and remote sensing.
Researchers have successfully developed a magneto-optic effect measurement device using dual-comb spectroscopy, achieving high resolution and sensitivity. This breakthrough technology is expected to become an important new tool for precise material development and spectroscopic analysis.
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.
Researchers create two-dimensional system to trap photons, which behave like massive quasiparticles with a magnetic moment. This discovery could lead to new optoelectronic devices and unique quantum states of matter.
Researchers use structured light to create a larger encoding alphabet, stronger security and better resistance to noise. The use of patterns of light enables higher information capacity and improved robustness against noise.
Scientists have developed a new method to measure polarization using ultra-thin metasurface holograms. The technique uses overlapping holographic images to determine the amplitude contrast and phase difference between polarized light waves, enabling fast and compact devices for spectroscopy, sensing, and communications applications.
Researchers have created a new material using tellurium nanorods produced by naturally occurring bacteria, which can protect electronic devices against high-intensity bursts of light. The material has the potential to revolutionize high-speed optical networking and improve internet communications.
A group of researchers has developed new inquiry-based models for optical states in photonic crystals, leading to breakthroughs in high-polarization-sensitive sensors. The study focuses on three-dimensional opal-like photonic crystals, which can be used to improve control over light in these systems.
Researchers have successfully controlled the electrical properties of Weyl semimetals using light, which can be used to create new electronic devices. The discovery was made possible by developing a theoretical framework that explains how light interacts with these materials.
Researchers at Stanford University have designed a photon diode that can only flow in one direction, enabling faster solutions to scientific, mathematical and economic problems. The device uses nanostructures and metasurfaces to manipulate light and break time-reversal symmetry.
A computational simulation suggests that insects can use skylight properties to determine their compass direction with an error of less than two degrees. This discovery could inspire designs for new navigation tools for robots, potentially replacing GPS technology.
Researchers have created a compact, portable camera that can image polarization in a single shot, revealing the reflected and transmitted light around us. The device uses metasurfaces to direct light based on its polarization, allowing for new applications in atmospheric science, remote sensing, facial recognition and more.
Researchers at ICFO have discovered a new type of optical singularity with the topology of a knot, which is topologically protected and robust against perturbations. This discovery expands light's degree of freedom and opens up new possibilities for applications in communication, microscopy, lithography, and spectroscopy.
Scientists create ultrathin device with silicon nanopillars to shape ultrafast light pulses, enabling controlled compression, splitting, and distortion. This technique has potential for high-speed communication and studying ultrafast phenomena.
Researchers at Rice University have created chiral polymers that can enable materials with unique properties, such as optical and sensing capabilities. The discovery could lead to the creation of metamaterials with tunable properties, including tough-but-flexible compounds with distinct functions.
Researchers at Lund University found that dung beetles are sensitive enough to hold their course during full moon nights despite light pollution. They use polarized light as their most important compass reference.
Researchers from Harvard John A. Paulson School of Engineering and Applied Sciences have developed a polarization-insensitive metalens using non-symmetric nanofins. This design doubles the efficiency of previous iterations and enables achromatic focusing across the visible spectrum.
ETRI's QKD system achieves secure key rate of 142.94 kbps in daylight, demonstrating its potential for secure communication in various applications. The self-developed polarization encoding chip reduces the system size and paves the way for commercialization.