Articles tagged with Photonics
Researchers at Sun Yat-sen University create a new method for fabricating ultra-uniform surface structures with features as small as 46 nanometers. The technique uses a carefully tuned femtosecond laser under water immersion, overcoming the challenge of creating uniform nanostructures smaller than 100 nanometers.
By studying how atoms interact with each other and with light, researchers have found that direct atom–atom interactions can strengthen collective bursts of light known as superradiance. This discovery could lead to breakthroughs in quantum technologies such as quantum batteries and precision sensors.
Wiley has acquired Nanophotonics, a top-ranked open-access journal in Optics & Photonics. The acquisition enhances Wiley's impact portfolio covering physics, engineering, and materials science, focusing on emerging photonics applications.
Researchers at Columbia University have developed a way to create powerful frequency combs on a single chip, allowing for dozens of parallel data streams. This breakthrough enables compact and cost-effective solutions for data centers, portable spectrometers, and other applications.
Scientists have developed a programmable electronic circuit that harnesses high-frequency electromagnetic waves to perform complex parallel processing at light-speed. This breakthrough has the potential to power next-generation wireless networks, real-time radar, and advanced monitoring in various industries.
Scientists create flexible surface plasmonic waveguides that maintain efficient signal transmission even when stretched, bent, or twisted. The new design enables wearable materials to seamlessly integrate advanced sensing and communication functions.
Aarhus University researchers have developed a transparent layer with silver nanorings that adapts to sunlight intensity, controlling heat entry through glass without dimming the view. The thermoplasmonic effect reduces near-infrared transmission, lowering cooling demand and CO₂ emissions in energy-efficient buildings.
The researchers have successfully demonstrated a four-dimensional QKD system with high efficiency and low measurement error rates. This breakthrough enables secure data transmission over long distances, with potential applications in fields such as finance and government.
A new photodiode design using germanium-ion-implanted silicon overcomes trade-offs in existing power monitors for on-chip light monitoring, enabling faster processing speeds and higher energy efficiency. The device demonstrates high responsivity and low dark current, making it suitable for integration into photonic circuits.
A new paper in Science reports proven quantum advantage, where entangled light lets researchers learn a system's noise with very few measurements. The experiment cuts the number of measurements needed by an enormous factor, from 20 million years to just 15 minutes.
Scientists at OIST use advanced spectroscopy to track the evolution of dark excitons, overcoming the fundamental challenge of accessing these elusive particles. The findings lay the foundation for dark valleytronics as a field, with potential applications in quantum information technologies.
A wearable device called a-Heal optimizes each stage of the wound healing process using AI and bioelectronics, delivering medication or an electric field for personalized treatment. Initial preclinical results show the device speeds up the healing process by 25% compared to standard care.
Researchers have developed a novel approach to control Dirac plasmon polaritons in topological insulator metaelements, enabling tunable terahertz optical devices with lower energy loss and enhanced performance.
A strong-confinement low-index rib-loaded waveguide structure enables efficient light propagation and high electro-optic coupling in TE polarization, opening up new ways for fast proof-of-concept demonstration. The structure achieved a 3-dB bandwidth beyond 110 GHz and a voltage-length product of 2.26 V·cm.
Scientists have developed a method to generate pseudomagnetic fields inside photonic crystals, allowing for arbitrary control of light flow. This technique enables high-speed data transmission and opens new possibilities for optical communications and quantum technologies.
A Caltech team led by Alireza Marandi has created a nanophotonic device that generates a frequency comb, a spectrum of evenly spaced laser-like light across a wide range of frequencies. This breakthrough offers potential in areas such as communications and spectroscopy.
A new system developed by Penn researchers allows light to be guided through tiny crystals with minimal scattering or reflection. This breakthrough paves the way for more efficient and controllable photonic chips, enabling faster data transmission and reduced errors.
Researchers at Politecnico di Milano developed photonic chips for training physical neural networks, eliminating digitisation requirements. This allows for faster, more robust, and efficient network training using light signals.
Researchers have developed a novel quantum light source based on topological bulk cavity, achieving high extraction efficiency and robust QD-cavity interaction. The system exploits a topological bulk state to enhance light emission from a semiconductor quantum dot, with a predicted high single-photon extraction efficiency of up to 92%.
Researchers discovered a new way to enhance light emission in nanoparticles, leading to the visualization of infrared radiation. The technique, which involves simultaneous excitation with two near-infrared beams, could have applications in microscopy and photonic technologies.
Researchers have discovered a way to arrange exotic light patterns into repeatable crystals that extend across space and time. The 'hopfion' lattices use structured beams at two different colors, enabling future systems for robust information processing in photonics.
Researchers have developed a hybrid Kerr-electro-optic frequency comb on thin-film lithium niobate, resolving limitations in traditional approaches. The device achieves both large spectral coverage and dense line spacing, capabilities that were difficult to realize simultaneously.
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.
The POEM Technology Center in Denmark will produce advanced wafers for photonic chips, enabling the development of high-speed communication and optical data processing. The facility will also facilitate the production of quantum chips, a key component in large-scale quantum computing.
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.
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 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.
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 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.
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.
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.
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.
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.
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.