Articles tagged with Photonics
Researchers have developed a topological photonic chip to process quantum information, demonstrating high-fidelity quantum interference and paving the way for scalable quantum computers. The breakthrough could lead to new materials, generation computers, and deeper understanding of fundamental science.
Scientists at the University of Sussex have created a blueprint for airport scanners capable of detecting explosives using a single pixel camera and Terahertz electromagnetic waves. The innovative imaging concept, Nonlinear Ghost Imaging, produces high-accuracy images of objects' chemical composition, surpassing previous studies.
Researchers at Vanderbilt University created a structure that concentrates light powerfully, nearly indefinitely, using a simple equation. The bowtie-funnel combo amplifies input light in a small region, enabling low-power manipulation of information on computer chips.
The KAIST research group created photonic capsules that can be injected into any target volume, exhibiting omnidirectional laser emissions. The capsules contain cholesteric liquid crystals (CLCs) with helical nanostructures, which reflect circularly-polarized light and enable wavelength-tunable lasing.
Researchers at Los Alamos National Laboratory have developed carbon nanotube optics for optical-based quantum cryptography and quantum computing. The team's work involves integrating nanotubes into photonic cavities to manipulate light-emission properties and creating single-photon emitters for quantum info-processing.
Researchers have developed a new route to molecular modelling using photonic quantum technologies, which could lead to more efficient pharmaceutical developments. The method simulates the motion of atoms within molecules at the quantum level, allowing for a frame-by-frame reconstruction of atomic motions to create a virtual movie.
Researchers have developed a method to simulate molecular motion using a photonic chip, allowing for the creation of virtual movies of molecular dynamics. This technology has the potential to improve the accuracy of molecular models and aid in the development of new pharmaceuticals.
A new compression bandage developed by MIT engineers features pressure-sensing photonic fibers that change color in response to pressure. This allows caregivers to gauge the optimal pressure and adjust the bandage accordingly.
Researchers have demonstrated a light-based system that can avoid jamming in wireless communication networks, using a neural algorithm inspired by a cave-dwelling fish. The system could enable more efficient use of limited bandwidth and reduce costs for service providers.
Researchers at USTC have created a 4-port device that breaks the reciprocity of light transmission in dielectric materials, enabling various functions like optical circulators and directional amplifiers. The device uses an optomechanical resonator and can be controlled with a single-photon level.
Researchers developed a miniaturized FTIR spectrometer based on silicon photonics, overcoming technical challenges to monitor greenhouse gases remotely. The device achieved resolutions comparable to commercially available portable spectrometers.
Researchers from Boston University, MIT, UC Berkeley, and CU Boulder develop a method to fabricate silicon chips that can communicate with light, speeding up data transfer and reducing energy consumption. The technology is compatible with current chip manufacturing processes and could revolutionize computing and mobile devices.
A new technique allows for the assembly of optical and electronic components on separate layers of silicon, enabling the use of modern transistor technologies. This breakthrough increases the speed and reduces the power consumption of chips, which is crucial as transistors continue to rise in count.
A team of researchers has discovered new evidence for color in Mesozoic fossils, revealing that intricate microstructures created the metallic bronze to golden colors found on ancient butterfly wings. This study extends the evidence for light-scattering structures in insect fossil records by over 130 million years.
Researchers have developed a new waveguide technology that suppresses bend loss in 3D photonic integrated circuits, allowing for the creation of compact devices. The technology uses femtosecond laser direct writing to inscribe modification tracks in fused silica, increasing refractive index contrast and reducing bending losses.
Researchers have developed III-V quantum-dot lasers that can be integrated with silicon, offering significant energy savings and improved performance. The lasers can operate at higher temperatures and scale down to smaller sizes, making them promising for photonic circuits.
A new laser technique can detect even trace amounts of chemicals in the air, making it possible to alert communities to biological or chemical attacks. The technology is accurate and sensitive enough to determine if there is a molecule of any chemical present at concentrations as low as one part per billion.
Researchers at ITMO University have created a new type of curved light beam called a photonic hook, which can improve optical system resolution and control nanoparticles. The technique uses a dielectric particle to bend the light beam, allowing for the manipulation of individual cells, viruses, or bacteria on a nanoscale.
A team of researchers at NIST developed a new laser source, called frequency combs, to detect chemicals with greater sensitivity. These lasers can pass through samples without direct contact, enabling remote spectroscopy and high-sensitivity measurements for applications such as breath analyzers, cancer detection, and explosives tracking.
A new technique enables real-time measurement of laser pulses with sub-picosecond resolution, revealing complex collapse and oscillation dynamics before stabilization. This breakthrough has important implications for designing and improving ultrafast pulsed lasers.
The Lehigh University team is building a new High Pressure Spatial chemical vapor deposition (HPS-CVD) reactor to create new materials with extreme conditions. The device will enable the growth of III-nitride and oxynitride semiconductors, paving the way for sustainable energy solutions and innovative technologies.
Researchers developed a device that combines metasurface lenses with MEMS technology, enabling fast scanning and beam steering. The integrated device can control the angular rotation of a flat lens and scan the focal spot by several degrees.
A new tool using biomedical photonics is being explored to improve uterine transplant surgery by providing real-time data on tissue perfusion and viability. The study found that multispectral imaging proved effective in mapping oxygen saturation over the entire graft, demonstrating advantages over existing methods.
A new study demonstrates the feasibility of using terahertz carrier waves for data transmission in diverse situations and environments. Researchers successfully measured data transmission at high frequencies, including non-line-of-sight applications.
Researchers in Australia have developed a novel platform for light-matter interaction in fiber optics, opening up new horizons for communication and photonics technology. The system uses terahertz radiation with higher bandwidth capacity than current microwave networks.
Researchers at Penn Engineering have developed an optical switch that can mimic the behavior of electronic transistors, enabling efficient signal processing and computation. The breakthrough, achieved by precisely controlling light waves using tailored electric fields, could lead to significant advances in photonic computing.
Researchers successfully identified pulmonary metastases in a patient with osteosarcoma, making it easier to locate tumors for resection. The technique utilizes targeted fluorescence and binds to specific molecular markers, allowing for the detection of small or hard-to-locate nodules.
Dark excitons, bound pairs of an electron and hole, can store information in their spin state, but reading their spins is hard due to lack of light emission. New experiments overcome this by introducing a microlens that captures more photons, enabling researchers to detect dark exciton spins more efficiently.
A new vector polarizer design has been developed, enabling flexible filtering of a wide range of light sources and generation of new light states. This advancement can improve optical systems such as super-resolution microscopy and quantum communications.
Researchers from UNIST and University of Maryland developed a core technology for quantum photonic devices using silicon chips. They integrated quantum dots with silicon photonic technologies to create single photon emitters, paving the way for innovative applications in quantum computing and communication.
Researchers have created thin crystal ferromagnetic films with potential applications in spintronics and photonics. The developed technology allows for specific shaping of the films using etching processes, opening up new possibilities for energy-efficient and high-speed devices.
A nanoscale optical 'abacus' has been developed using pulses of light to perform arithmetic computations. The innovative device can carry out basic functions such as addition, subtraction, multiplication, and division using picosecond light pulses.
Researchers from the University of Freiburg have developed a method to trap ions in optical traps, preventing driven motion and allowing for longer lifetimes. This breakthrough enables the creation of ultra-cold temperatures and observation of quantum effects in chemical processes.
Researchers at TIFR devise compact terahertz radiation source using laboratory liquids, achieving energies thousands of times larger than existing sources. The discovery opens doors to applications in terahertz imaging, material analysis, and explosives detection.
Scientists have successfully developed a zero-index waveguide compatible with current silicon photonic technologies, allowing them to observe standing waves with infinitely-long wavelengths. This breakthrough could enable the creation of ultra-compact optical devices and pave the way for new quantum computing applications.
Researchers pack laser-written structures deep into silicon chips, enabling arbitrary 3D fabrication without layers above or below. The method also enables creating functional optical devices and 3D sculpturing of entire wafers.
Researchers fine-tune DNA-based thin films to achieve a range of refractive indexes four times greater than silicon, enabling the creation of thinner optical fibers. This could lead to applications in photodynamic therapy, optogenetics, and biosensors.
Researchers created photonic computer chips mimicking human brain's synapses, enabling speeds a thousand times faster than the human brain. The breakthrough paves the way for new age of computing where machines work and think like the human brain.
The NEMONIC project aims to develop and widely share new optical brain-imaging techniques, enabling the recording of brain cells in action. The team, led by UCSB scientists, uses light to measure brain activity, overcoming technological bottlenecks to understanding the mind and brain.
Researchers have developed a new type of dye-doped WGM micro-laser that produces light with tunable wavelengths, offering broader tuning ranges and reversible tuning. The devices also exhibit enhanced sensitivity in refractive index sensing.
University of Sydney researchers have achieved a groundbreaking breakthrough in transferring digital information between light waves and sound waves on a microchip. The innovation enables faster processing and reduces energy consumption by slowing down data transfer velocity to five orders of magnitude, making it suitable for use in te...
University of Leeds scientists have discovered a way to measure the strength of modern concrete forms using light-refracting coatings. The birefringent coating displays stress positions, allowing researchers to assess concrete toughness against fractures with high precision.
The Journal has published 3,000 articles per year with an incredibly short submission-to-publication time of <65 days. It plays a crucial role in shaping the evolution of scientific publishing and enables quick dissemination of groundbreaking research.
A team of researchers from KIT and EPFL used optical silicon nitride micro-resonators to generate continuously circulating solitons, enabling massive parallel data transmission on 179 wavelength channels. The system achieved a record-breaking data rate of over 50 terabits per second.
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.
A team of researchers from Université Laval has created a smart T-shirt that can monitor a person's breathing rate in real time. The innovative design uses an antenna sewn into the chest level to detect changes in thorax circumference and air volume, allowing for reliable data capture.
Researchers at Bielefeld University and the University of Tromsø have developed a photonic chip that enables superresolution light microscopy with conventional microscopes. This breakthrough method produces images with a resolution of about 20 to 30 nanometres, ten times that of conventional light microscopy.
Researchers at the University of Sydney have made a photonics breakthrough, achieving radio frequency signal control at sub-nanosecond time scales on a chip-scale optical device. This achievement could unlock the bandwidth bottleneck faced by wireless networks worldwide, enabling broader bandwidth instantaneously to more users.
A silicon optical switch developed at Sandia National Laboratories can transmit up to 10 gigabits per second of data at temperatures near absolute zero. The device operates by using light traveling through an optical fiber, reducing heat and increasing efficiency.
Researchers have created a way to make metamaterials with a single inclusion, providing easier fabrication and tailoring light-matter interactions. This 'photonic doping' technique has implications for flexible photonics, information processing systems, and telecommunications applications.
A reconfigurable and single-shot incoherent optical signal processing system has been developed to compress chirped microwave signals. The system uses a multi-wavelength laser as the incoherent light source, improving the signal-to-noise ratio and enabling operation in a single shot.
Researchers developed hand-held spectrometers using meta-lenses, enabling real-time monitoring of pollutants and toxic chemicals. The devices can be customized and mass-produced, offering significant potential for applications in healthcare diagnostics and environmental monitoring.
Nathan Cahill, an RIT associate professor, has been named a Rising Researcher by SPIE for his work in defense and security research. He was recognized for his contributions to remote sensing, machine learning, and cybersecurity.
The team of Professor Gerd Ulrich Nienhaus has refined the STED nanoscopy method to suppress background efficiently, resulting in enhanced image quality. This new method, named STEDD, is particularly advantageous for quantitative data analysis of three-dimensional molecules and cell structures.
Researchers develop integrated optical switch using polarization diversity, reducing size and cost of traditional switches. The new device features a single 8x8 grid with unique port assignments, allowing simultaneous management of both polarizations of light.
J.-C. Chiao, a UTA electrical engineering professor, has been recognized by SPIE as a Fellow for his work on micro medical devices and systems. He has secured $5 million in research funding and holds 11 US patents in MEMS technologies.
Researchers at Singapore University of Technology and Design have developed a compact optical amplifier that can amplify light by 17,000 times, strengthening the integrity of transmitted data. The device's efficiency enables new opportunities in low-cost broadband spectroscopy, precision manufacturing, and hyperspectral imaging.
Researchers at Chalmers University of Technology have developed a method to manipulate light using metamaterials, allowing it to follow any predetermined path along a surface. This innovation has vast applications in optical chips for reliable data delivery and faster routers.
Physicists have created a technique to improve the production of single photons, which can be used for quantum computing and secure communication. The new method uses fibre-optics and optical switches to control photon properties.
Researchers created a cloaking device to minimize crosstalk between photonic devices, enabling the packing of billions of devices into a single chip. This technology could lead to significant power consumption reductions and lower carbon emissions in data centers.