Articles tagged with Photonics
The new Harvard device can turn purely digital electronic inputs into analog optical signals at high speeds, addressing the bottleneck of computing and data interconnects. It has the potential to enable advances in microwave photonics and emerging optical computing approaches.
Researchers suggest that phototherapy for newborn jaundice may require adjustments based on a baby's skin tone. The study found that darker-skinned infants may receive up to 5.7 times less effective light dose under identical settings, leading to predicted bilirubin reductions of about 40.8 percent compared to lighter-skinned infants.
A team of researchers from the University of Melbourne and Hanyang University has discovered a new method for creating spiral whirlpools of light through Van der Waals materials. This breakthrough could lead to more efficient and secure optical communication systems, including Australia's NBN.
Researchers develop a generic strategy for vectorial holography using ultrathin metasurfaces, enabling complex images with spatially varying polarization states. The method achieves high efficiency, outperforming previous systems, and has potential applications in optical encryption and anticounterfeiting.
A research team at Zhejiang University has demonstrated a simple method to overcome the problem of Auger recombination in perovskite lasers, leading to record-setting performance for near-continuous operation. By suppressing this process, researchers were able to sustain carrier densities required for efficient stimulated emission.
Researchers developed a supramolecular co-assembly platform producing chiral soft materials with strong, stable full-colour circularly polarised luminescence across the visible spectrum. The resulting structures are tunable, scalable and retain their properties for over 100 days at room temperature.
Researchers at the University of Innsbruck have demonstrated a new technique to generate high-quality two-photon states from quantum dots using stimulated two-photon excitation. The approach sidesteps limitations of traditional methods, including expensive and loss-inducing electronic components.
Researchers have developed a method to control the interactions between light and materials at the nanoscale, allowing for ultrafast on-and-off switching of resonances. This breakthrough enables precise control over optical resonance, opening up new paths for faster optical computers, quantum communication, and photonic circuits.
A team at ETH Zurich has created a method to spatially visualize chirality in nanostructures using just one image. This allows for the identification of left-handed and right-handed structures in samples, which can have different effects on biological systems and materials.
Researchers at Stanford University have developed a novel nanodevice that manipulates light using sound waves, enabling precise control over color and intensity. This breakthrough has significant implications for various fields, including computer displays, virtual reality, and optical communications.
Researchers have developed a new RGB multiplexer based on thin-film lithium niobate (TFLN) that enables faster and more energy-efficient light modulation for laser beam scanning systems. The multiplexer successfully combined red, green, and blue laser beams, generating mixed colors such as cyan, magenta, and yellow, and even white light.
Researchers at Stanford University have made a breakthrough in developing lighter, sleeker mixed reality glasses that use holography technology. The new display achieves large field of view and eyebox, providing a crisp 3D image that fills the user's field of view for an immersive experience.
Researchers create metasurfaces to control photons and entangle them for quantum computing and sensing. The discovery could lead to miniaturized optical setups with improved stability, robustness, and cost-effectiveness.
Researchers have successfully integrated indium arsenide quantum dot lasers monolithically on silicon photonic chiplets, achieving low coupling loss and enabling efficient operation at high temperatures. The novel integration technique has the potential to be widely adopted due to its scalability and cost-effectiveness.
A new method using label-free optical microscopy and artificial intelligence effectively identifies disease phenotypes in pancreatic cancer. The approach achieved nearly 90% accuracy in predicting tissue phenotypes, demonstrating the promise of combining light-based imaging with AI for precision medicine.
Researchers from Université Laval designed an ultra-fast and greener optical chip that can transfer massive amounts of data at speeds of 1,000 gigabits per second while reducing energy consumption. This innovation uses the phase of light to add a new dimension to the signal, reaching unprecedented performance levels.
Researchers at the University of Illinois have made a significant breakthrough in laser technology, creating a photopumped lasing from a buried dielectric photonic-crystal surface-emitting laser. This achievement improves upon current laser design and opens new avenues for defense applications.
A new laser machining method enables high-precision patterned laser micro-grooving with root mean square errors below 0.5 μm. This technique allows for rapid and scalable manufacturing of custom microstructures, advancing applications in microfluidic devices, sensors, and heat dissipation systems.
Researchers at Harvard and TU Wien have developed a new type of tunable semiconductor laser with smooth, reliable, and wide-range wavelength tuning in a simple chip-sized design. This innovation could replace many types of tunable lasers with a smaller, more cost-effective package.
A new photonic neural network developed in China achieves higher classification accuracy than digital models by using physical light transformations and multisynaptic optical paths. The system's design avoids errors introduced by translating software to hardware, marking a major step forward in optical AI hardware.
Dr. Charles Roques-Carmes has been recognized for his groundbreaking research in nanophotonics, advancing areas such as metalenses and photonic machine learning. His work has led to transformative technologies and deepened fundamental understanding in the field of photonics.
Researchers at the University of Illinois developed cryosoret nanoassemblies that enhance fluorescence signals, reducing detection limits for biomarkers. The new platform offers dual-mode interaction between electric and magnetic components of light, promising highly sensitive and tunable biosensing systems.
Researchers found that low-intensity rTMS can increase synaptic plasticity of cortical axons in mouse models of Alzheimer's disease, particularly in excitatory boutons. This suggests potential as a targeted treatment to improve quality of life for AD patients.
The researchers created a novel method for using cholesteric liquid crystals in optical microcavities, enabling the formation and dynamic tuning of photonic crystals. This breakthrough research has the potential to revolutionize photonic engineering by opening up new perspectives in the manipulation of light.
Researchers at EPFL's Bionanophotonic Systems Laboratory developed a biosensor that detects biomolecules using inelastic electron tunneling, enabling ultra-sensitive and real-time detection without bulky equipment. The sensor can detect amino acids and polymers at picogram concentrations, rivaling advanced sensors.
Researchers from Hunan University uncover buildup dynamics of harmonic mode-locking in fiber-based Mamyshev oscillators, achieving high stability and signal-to-noise ratio. The study identifies five distinct phases in the generation of stable harmonic mode-locking, challenging conventional understanding of laser emission.
The University of Ottawa's SUNLAB has developed a simulation model for multi-junction photonic power converters, which enable the conversion of laser light into electrical power with higher efficiencies and voltages. This technology could lead to more reliable telecommunication networks, reduce costs by enhancing systems performance, a...
Researchers from OIST develop new quantum AI method for image recognition based on boson sampling, achieving highly accurate results without complex training. The approach uses a linear optical network and preserves information, outperforming classical methods in various datasets.
Researchers at the University of Michigan discovered a class of materials with exciting properties for transporting photonic information, including unidirectional transport and defect-free light. The topological insulators' band gap size can be up to 100 times larger than current records, enabling new applications in optical devices.
Conjugated polymers (CPs) offer unique advantages in modern electronics and photonics, featuring high flexibility and solution processability. Recent advancements and future prospects are highlighted in a comprehensive review exploring their role in nanoelectronics and photonics.
Researchers have developed a new method to 3D-print glass structures with nanoscale precision, achieving nearly 100% reflectance in the visible spectrum. This breakthrough opens up a broader role for glass in nanophotonics, including wearable optics, integrated displays, and sensors.
A research team from Tampere University and Université Marie et Louis Pasteur has demonstrated a novel way to process information using light and optical fibers. The study used femtosecond laser pulses and an optical fiber to mimic the processing of artificial intelligence, achieving accuracy of over 91% in under one picosecond.
Researchers at Aston University have developed a new class of ultralow loss optical microresonators that can be widely tunable and precisely controlled. The devices, formed at the intersection of two optical fibers, hold potential applications in communication, computing, sensing and more.
MIT researchers create a novel AI hardware accelerator that performs machine-learning computations at the speed of light, classifying wireless signals in nanoseconds. The photonic chip is scalable, flexible, and energy-efficient, making it suitable for future 6G wireless applications.
Researchers have developed glass-epoxy-based waveguides with low polarization-dependent loss and differential group delay, suitable for stable signal transmission in co-packaged optics. The waveguides demonstrated high power stability and reliability under six hours of continuous use.
Researchers at the University of Utah have developed a multifunctional device that can be adjusted on the fly to give light different degrees of circular polarization. The device leverages phase-change materials and carbon nanotubes to store information in a property of light known as chirality.
A research team at POSTECH developed a metasurface technology that can display multiple high-resolution images on a single screen, overcoming conventional holographic limitations. The innovation uses nanostructure pillars to precisely manipulate light, allowing for different images based on wavelength and polarization direction.
Researchers have developed a new platform using dispersion-managed silicon nitride microresonators to suppress timing jitter, achieving femtosecond-level precision. This breakthrough enables the deployment of chip-scale solitons in space navigation, ultrafast data networks, and quantum measurement systems.
A new photonic accelerator based on a nonlinear optoelectronic oscillator (NOEO) has been proposed to speed up reinforcement learning in AI. The accelerator outperformed existing methods, achieving high speeds and accuracy in solving complex problems like the multi-armed bandit problem and Tic Tac Toe game.
Researchers have developed thin films that can compress infrared light, improving its propagation distance and wavelength range. The technology has potential applications in thermal management, molecular sensing, and photonics.
Researchers at U of A create a transistor that operates at speeds over 1,000 times faster than modern computer chips. The breakthrough uses quantum effects to manipulate electrons in graphene, enabling ultrafast processing for applications in space research, chemistry, and healthcare.
Researchers have developed a theoretical model that enhances passive radiative cooling by generating positive photon chemical potential, allowing for more efficient heat emission. The system can reach cooling powers of up to 485 watts per square meter, surpassing typical radiation power from a blackbody at room temperature.
Scientists at UC Riverside are investigating plasmonic materials that can transfer energy when struck by light. Their findings could lead to sensors capable of detecting molecules at trace levels and other technologies with practical applications.
Researchers at Pohang University of Science & Technology (POSTECH) have developed an achromatic metagrating that handles all colors in a single glass layer, eliminating the need for multiple layers. This breakthrough enables vivid full-color images using a 500-µm-thick single-layer waveguide.
Researchers have developed a single-layer antireflective coating using polycrystalline silicon nanostructures that sharply reduces sunlight reflection across a wide range of wavelengths and angles. The coating achieves unprecedented results for a single-layer design, setting a new standard for solar cells.
Researchers can now study microstructures inside metals, ceramics, and rocks with X-rays in a standard laboratory without needing a particle accelerator. The new technique, lab-3DXRD, enables quick analysis of samples and prototypes, providing more opportunities for students.
Researchers have developed a new portable Raman analyzer that can accurately measure very low concentrations of hydrogen gas in ambient air. The instrument can detect hydrogen leaks from a distance, making it a crucial tool for ensuring safety and minimizing losses in industrial settings.
Researchers develop a new coronagraph that can detect exoplanets obscured by light from their parent stars, providing insights into the possibility of life beyond Earth. The device uses spatial mode sorters to isolate and eliminate starlight, capturing images of exoplanets with unprecedented sensitivity.
Researchers have created a breakthrough photonic chip that can train nonlinear neural networks using light, accelerating AI training while reducing energy use. The chip uses a special semiconductor material to reshape how light behaves, enabling reconfigurable systems with wide mathematical function expression.
Scientists have developed an all-optical activation function based on sound waves for photonic computing, enabling the creation of energy-efficient artificial intelligence systems. This breakthrough could potentially facilitate the scaling up of physical computing systems and pave the way for more efficient optical neural networks.
Researchers integrated 2D CuCrP₂S₆ onto silicon microring resonators, achieving compact, efficient non-reciprocal optical response with low insertion loss and high isolation. The device operates directly in the transverse electric mode, eliminating polarization rotators and simplifying integration.
A new amplifier developed by Chalmers University of Technology can transmit ten times more data per second than current systems, holding significant potential for various critical laser systems, including medical diagnostics and treatment. The amplifier's large bandwidth enables precise analyses and imaging of tissues and organs.
Researchers have discovered a new way to characterize terahertz quasi-bound states by inducing abrupt lateral beam shifts. These shifts can be controlled and potentially used in next-generation sensors and wavelength division multiplexers.
A team of researchers from Télécom Paris and Politecnico di Milano has developed a system of optical micro-antennas integrated into a programmable photonic chip, which can adapt in real time to restore chaotic signals. This innovation paves the way for chaos-based encryption for secure high-speed communication in hostile environments.
Researchers have developed an on-chip twisted moiré photonic crystal sensor that can simultaneously measure wavelength, polarization, and perform hyperspectral imaging. The device uses MEMS technology to control the twist and distance between layers in real time.
Three UVA Engineering faculty members have been elected as AAAS Fellows for their groundbreaking work in computer architecture, energy transport, and hydrology. Sandhya Dwarkadas, Patrick E. Hopkins, and Venkataraman Lakshmi were recognized for their innovative research and contributions to their respective fields.
The study outlines opportunities for advancing fundamental understanding of wave-matter interactions, unlocking exotic effects such as perfect absorption and super-resolution imaging. Complex frequency excitations offer an alternative approach to enhance wave control using conventional materials.
A new study achieves substantial wavelength tuning at ambient conditions, surpassing previous reports by an order-of-magnitude. The breakthrough enables the development of programmable light sources with potential applications in secure quantum communication and photonic-based computing.
Researchers developed a new liquid-crystal-based platform to handle hundreds of optical modes in compact two-dimensional setups, overcoming optical losses. This breakthrough enables the scalability of quantum simulations and all-optical AI systems.
Researchers have experimentally confirmed complex synchronisation patterns in oscillatory systems, including leaf-like structures and gaps representing unsynchronised states. This breakthrough builds on previous studies using breathing-soliton lasers to explore nonlinear dynamics.