Articles tagged with Photonics
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.
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.
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 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.
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.
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 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.
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 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.
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.
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.
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.
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.
Researchers develop a groundbreaking 3D photonic-electronic platform that achieves unprecedented energy efficiency and bandwidth density for AI hardware. The innovation addresses critical challenges in data movement, enabling faster and more efficient AI technologies.
The event will feature major announcements in AI-driven networking, 1.6T advancements, quantum technologies, and next-gen optical innovations. Over 13,500 attendees are expected, with nearly 100 California-based companies participating.
Researchers at the Advanced Science Research Center have developed a groundbreaking method to excite phonon-polaritons using an electrical current, enabling the creation of novel nanoscale lasers and efficient electronic device cooling. The discovery could lead to transformative advancements in energy-efficient, compact technologies.
Researchers at Heriot-Watt University discovered a way to manipulate the optical properties of light by adding a new dimension—time. This breakthrough enables extraordinary light transformations, including amplification and quantum states, with ultra-fast pulses of light.
Researchers have developed a new low-energy membrane photonic device that enables high-speed data transmission with minimal power consumption. The device was integrated into an optical link on a silicon wafer and demonstrated the ability to transmit 50- and 64-Gbit/s non-return-to-zero signals with just 0.14 or 0.26 pJ/bit of energy.
Researchers have developed a photonic-chip-based amplifier that achieves ultra-broadband signal amplification in an unprecedentedly compact form. The new amplifier uses optical nonlinearity to boost weak signals while keeping noise low, making it highly adaptable to various applications beyond telecommunications.
UC Santa Barbara researchers develop photonic integrated 3D-MOT, a miniaturized version of equipment used to trap and cool atoms. This innovation enables new applications in sensing, precision timekeeping, and quantum computing, and paves the way for accessible quantum research projects.
The study introduces a new way to apply cellulose nanocrystals, resulting in high-strength, reconfigurable, and mechanochromic hydrogels with improved mechanical properties and dynamic color-changing abilities. These materials have potential uses in sustainable bioplastics, flexible electronic substrates, and smart photonic devices.
A recent study reveals three distinct mechanisms of recombination in photocatalytic water splitting, including over-penetration induced recombination and excess hole induced recombination. The discovery of a previously unknown slow reaction, called the 'satellite peak,' is crucial for pinpointing the rate-limiting step in water splitting.
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.
Researchers have developed microcomb technology to miniaturize optical atomic clock systems, offering significant benefits for navigation, autonomous vehicles, and geo-data monitoring. The new system uses integrated photonics to integrate optical components on tiny photonic chips, reducing size and weight.
Researchers have created a new imaging technique that uses the nanostructures found on butterfly wings to analyze cancerous tissues, providing a simpler and more accessible tool for cancer diagnosis. The method has shown comparable results to conventional staining methods and advanced imaging techniques, offering a stain-free alternative.
Researchers develop dual-stage E+S-band bismuth-doped fiber amplifier for next-generation optical communication systems. The device achieves unprecedented broad bandwidth, high gain and low noise, making it suitable for boosting optical signals.
Relativity Networks develops patent-pending HCF cable that transmits data nearly 50% faster than conventional glass fiber, expanding data center geographical optionality. UCF's College of Optics and Photonics supports the innovation through industry partnerships and research collaborations.
A new single-photon time-of-flight LiDAR system can acquire high-resolution 3D images of objects or scenes up to 1 kilometer away, offering improved surveillance and monitoring capabilities. The system uses a superconducting nanowire single-photon detector and achieves a higher spatial resolution than previous systems.
Naomi Halas' work has pioneered new insights into how light and matter interact at the smallest scales, leading to discoveries in biomedical applications such as cancer therapy and water purification. Her research on plasmonic catalysts could dramatically reduce energy required for chemical reactions.
Researchers successfully linked two separate quantum processors to form a single, fully connected quantum computer using photonic network interface. This breakthrough enables computations to be distributed across the network, addressing quantum's scalability problem and paving the way for industry-disrupting quantum computers.
Researchers developed a simple and sensitive optical fiber sensor for real-time detection of extremely low levels of arsenic in water. The sensor can detect arsenic levels as low as 0.09 ppb and provides analysis within just 0.5 seconds, making it a powerful tool for monitoring and ensuring safer water quality.
Researchers at Aalto University have developed a microscopic spectral sensor that can identify materials with unprecedented accuracy. The device achieves an extraordinary peak wavelength identification accuracy of ~0.2 nanometers, enabling it to distinguish thousands of colours.
Researchers developed a 7-axis synchronization algorithm for freeform surface laser texturing, achieving high efficiency and accuracy without stitching errors. The approach improves processing efficiency by up to 559% and reduces errors by 60%, making it suitable for industrial applications.
Researchers at EPFL have developed a compact electro-optic frequency comb generator using lithium tantalate, achieving 450nm spectral coverage with over 2000 comb lines. This breakthrough expands the device's bandwidth and reduces microwave power requirements, enabling practical applications in photonics.
A team of researchers from the University of Ottawa has developed innovative methods to enhance frequency conversion of terahertz (THz) waves in graphene-based structures, unlocking new potential for faster, more efficient technologies in wireless communication and signal processing. These advancements hold great promise for wireless c...
Scientists have created a stable 2D material, InSbMoO6 (ISM), using lone pair electrons as chemical scissors. ISM exhibits strong nonlinear optical responses and good air stability, making it promising for integrated photonics applications.
Researchers developed a groundbreaking photonic platform to overcome limitations in in-memory computing, enabling faster calculations and greater efficiency. The innovative magneto-optical memories consume about one-tenth the power of traditional electronics and can be rewritten billions of times.
Researchers developed tapered polymer optical fibers that can deliver light to the brain, enabling more efficient and effective optogenetics experiments. The fibers reduce tissue inflammation and increase the volume of illuminated brain tissue compared to standard optical fibers.
The Nick Cobb Memorial Scholarship honors an exemplary graduate student in the field of lithography. Clay Klein, a PhD candidate at JILA and the University of Colorado, Boulder, will receive the $10,000 award for his research on EUV scatterometry and its applications.
Researchers used 3D printing to make headlight lenses, achieving exceptional precision and surface quality while reducing costs and production speeds. The study compared 3D printing with traditional methods like CNC machining and reverse engineering, finding that 3D printing outperformed them in efficiency and cost-effectiveness.
Researchers at the University of Pennsylvania School of Engineering and Applied Science have developed a novel photonic switch that can redirect signals in trillionths of a second with minimal power consumption. The new switch uses non-Hermitian physics and silicon material to achieve unprecedented speed and efficiency.
Researchers developed a high-power tunable laser on silicon photonics, reaching close to 2 Watts of output power. This achievement has the potential to disrupt the field of photonics and enable large-scale deployment of integrated photonics systems.
MIT researchers developed a biosensing technique that eliminates the need for wires, using tiny wireless antennas with light detection to measure electrical signals from cells. The devices can capture scattered light with an optical microscope and measure signals with micrometer spatial resolution.
Scientists successfully prepared six mechanical oscillators in a collective state, observing phenomena that emerge when oscillators act as a group. The research demonstrates experimental confirmation of theories about collective quantum behavior, opening new possibilities for quantum sensing and generation of multi-partite entanglement.
Researchers developed a laser-based artificial neuron that emulates biological graded neuron functions, achieving a signal processing speed of 10 GBaud. This enables fast AI decision-making in time-critical applications with high accuracy.
Researchers at MIT have created a new magnetic state in an antiferromagnetic material using terahertz laser light, enabling controlled switching and potentially leading to more efficient memory chips. The technique provides a powerful tool for manipulating magnetism and advancing information processing technology.
Researchers at Tata Institute of Fundamental Research have developed a novel method to steer relativistic electron pulses produced by femtosecond lasers. By using solid targets with nanopillars, they achieved coherent control over the electrons' directionality and formed narrow beams.
A team of researchers has created a compact and low-cost device that generates twisting light beams with orbital angular momentum, enhancing the capacity and reliability of future wireless systems. The device achieves high out-of-band suppression, exceeding 30 dB, reducing interference and ensuring clean signal transmission.
A team of international researchers successfully controlled the quantum states of matter at ultrafast time scales and its chemical properties with extreme precision using light in the extreme ultraviolet. The technique was demonstrated on helium atoms, enabling the enhancement of selected quantum processes while suppressing others.
Fogarty's research aims to monitor language function and recovery in post-stroke patients using DOT. She hopes to establish the feasibility of brain-computer interfaces to restore inter-personal communication for post-stroke patients.