Articles tagged with Photonics
A team of researchers developed an efficient strategy to recycle lead from discarded car batteries, creating a new market for recycled lead in high-tech equipment. The resulting photodetectors show excellent stability and fast response speeds, with potential applications in optical communication, chemical analysis, and imaging.
Researchers have developed a compact silicon photonic compute engine capable of computing tiled matrix multiplications at a record-high 50 GHz clock frequency. This achievement promises to contribute significantly to data center cybersecurity and enables real-time threat detection for malicious packets.
The new optical resonator developed by Capasso's team provides precise control over the mode of light and enables multi-mode coupled light to exist within the resonator. This breakthrough could influence how resonators are understood and open doors for new capabilities, including fundamental physics experiments and manipulation of mate...
Researchers have developed a new detector that can precisely measure single photons at very high rates, enabling practical high-speed quantum communication. The PEACOQ detector is made of superconducting nanowires and operates at extremely cold temperatures, allowing for precise measurement of photon arrival times.
University of Central Florida researchers observed de Broglie-Mackinnon wave packets, a long-standing theoretical concept, by exploiting a loophole in 1980's-era laser physics theorem. The team's use of space-time wave packets, which resist stretching in dispersive media, verifies predicted properties and opens the path to studying top...
Researchers have developed a mechanically flexible silver mesh that shields electromagnetic interference in the X band while allowing high-quality infrared wireless optical communication. The mesh, made of transparent polyethylene substrate with a grid structure, enables efficient shielding and visible transparency.
Lithium niobate (LN) is being developed to harness its exceptional properties for diverse future applications. LN photonic chips can transform industries beyond optical fibre communications by detecting signals in the infrared part of the spectrum.
Researchers at TU Wien have created a new, simpler method for producing intense, high-energy X-ray pulses using ytterbium lasers and a gas medium. This technique increases the efficiency of X-ray radiation production, allowing for better monitoring of chemical reactions in real-time and more efficient nanostructure production.
A team of global experts has developed a new navigation system for lunar rovers using lithium niobate chips, which can detect tiny changes in laser light to measure movement without external signals. This technology also has potential applications on Earth, such as remotely detecting the ripeness of fruit.
Scientists at Rice University, Stanford University, and UT Austin have developed a mechanism to generate solvated electrons through plasmon resonance, making it easier to turn light into these clean, zero-byproduct chemicals. This breakthrough could lead to new ways of driving chemical reactions and reducing greenhouse gas emissions.
A European consortium has successfully guided lightning using a high-power laser installed at the top of Mount Säntis in Switzerland, increasing the radius of protection from 120m to 180m. The Laser Lightning Rod (LLR) works even in poor weather conditions, such as fog.
A new optical coating system combines antifogging and antireflective properties, enhancing the performance of lidar systems and cameras. The technology, developed by Fraunhofer Institute for Applied Optics and Precision Engineering, has been tested in laboratory tests and has shown promising results.
Researchers at EPFL have developed a new thin-film circuit that produces finely tailorable terahertz-frequency waves, enabling precise control over frequency, wavelength, amplitude, and phase. This breakthrough has significant implications for future electronics, telecommunications, spectroscopy, and quantum applications.
A new ultrafast camera developed by INRS scientists can stream real-time video at 100 frames per second (fps) and up to 12,000 fps offline. The device has broad applications in photonics, biophotonics, combustion analysis, and detection of hazardous gases.
Researchers from Japan develop a new DFB laser for high-speed data transmission, achieving 200 Gb/s over 10 km. The breakthrough enhances next-generation ethernet technology for data centers.
The Center for Aggressive Scaling by Advanced Processes for Electronics and Photonics (ASAP) aims to develop new fundamental technology solutions to reduce energy consumption in microprocessors. The center will focus on materials discovery, heterogeneous 3D integration, and highly energy-efficient circuits and architectures.
The Center for Ubiquitous Connectivity (CUbiC) aims to flatten the computation-communication gap by delivering seamless Edge-to-Cloud connectivity with transformational reductions in energy consumption. Led by Columbia Engineering Professor Keren Bergman, CUbiC will create new ultra-energy efficient technologies and system architectures.
Research into on-chip lasers has made significant progress, with advancements in material systems and integration technologies. The integration of compact, energy-efficient, and robust laser sources is key to unlocking the potential of photonic integrated circuits. These developments have far-reaching implications for applications in o...
Researchers developed a self-powered nanowire sensor that can detect nitrogen dioxide in the air without power source. The sensor has potential applications in environmental monitoring, healthcare, and industrial safety.
Weyl semimetals exhibit unusual electronic, magnetic, thermal, and optical properties due to their nontrivial topology. They offer opportunities for practical applications in photonic devices, such as compact optical isolators and higher-order harmonic generation.
Scientists have developed a new method to enhance electron-photon coupling, resulting in a hundredfold increase in light emissions. The approach uses a specially designed photonic crystal to produce stronger interactions between photons and electrons.
Researchers from Nara Institute of Science and Technology have developed a straightforward means of fabricating high-quality soft semiconductors for advanced electrical circuits. The new method offers superior control over the resulting semiconductor film morphology, critical to its electrical properties.
Researchers have developed a new spectroscopy technique called filament- and plasma-grating-induced breakdown spectroscopy (F-GIBS), which improves the sensitivity of trace metal detection in liquid samples. The technique uses fluid jets to analyze aqueous solutions and achieves high precision by avoiding detrimental influences of liqu...
Researchers developed a one-dimensional suspended high-contrast grating structure to enable directional lasing with high energy efficiency. The device can adjust the emission angle over a wide range, from -40° to +40°, making it suitable for solid-state LiDAR applications.
Researchers at CELIA have developed a laser drilling method that creates elongated, crack-free micro-holes in glass. This breakthrough allows for high-aspect ratio holes with smooth inner walls, enabling new applications in microelectronics.
Researchers demonstrated high-visibility quantum interference between two independent semiconductor quantum dots, an important step toward scalable quantum networks. The observed interference visibility is up to 93%, paving the way for solid-state quantum networks with distances over 300 km.
Researchers at EPFL's School of Basic Sciences created a large-scale, configurable superconducting circuit optomechanical lattice to simulate graphene lattices. The device exhibits non-trivial topological edge states and can be used to study many-body physics.
New signal-processing algorithms have been shown to help mitigate the impact of turbulence in free-space optical experiments. The researchers achieved record results using commercially available photonic lanterns and a spatial light modulator to emulate turbulence.
A new parallel peripheral-photoinhibition lithography system has been developed, enabling the fabrication of subdiffraction-limit features with high efficiency. The system uses two beams to excite and inhibit polymerization, allowing for nonperiodic and complex patterns to be printed simultaneously.
Researchers at ARC Centre of Excellence for Transformative Meta-Optical Systems have developed a miniaturized optical system that can be integrated on a chip, allowing for the creation of 3D holograms. This technology has the potential to replace current 2D imaging, enabling less invasive surgeries and better surgical outcomes.
Researchers have successfully detected terahertz waves with a fast response and high sensitivity at room temperature, using a graphene transistor. The breakthrough could have massive ramifications for spectroscopy, imaging, and future wireless technologies like 6G and 7G.
Researchers at Ruhr-University Bochum have developed a novel approach to water-based circuits using laser technology. The method creates an ultra-fast liquid switch that can conduct electricity at terahertz frequencies, similar to metals.
A new MIR all-optical modulator based on an acetylene-filled hollow-core fiber has been developed, enabling gas sensing and medical diagnostics in the mid-infrared range. The device utilizes the photo-thermal effect to achieve phase modulation, allowing for ultra-broadband modulation devices from NIR to MIR.
A new mesoscopic oblique plane microscopy method captures up to three times more resolvable image points than other similar systems, enabling whole-body volumetric recordings of neuronal activity and blood flow dynamics. The technique allows for single-cell tracking within the complete 3D circulation system for the first time.
Researchers developed a photon-efficient volumetric imaging method, laterally swept light-sheet microscopy (iLSLM), which improves axial resolution and optical sectioning while reducing photobleaching. iLSLM outperforms conventional methods like swept focus light-sheet microscopy in terms of resolution and photon efficiency.
A team of researchers from Synchrotron SOLEIL, France, and Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Germany, has successfully demonstrated a free-electron laser driven by plasma acceleration and seeded by additional light pulses. This achievement could lead to the development of more compact and affordable FEL systems.
Researchers at the University of Ottawa have developed a new technique to differentiate the mirror images of a chiral molecule, a problem that was believed to be unsolvable for nearly 20 years. The team used linear polarized helical light beams to enhance sensitivity and observed differential absorption in achiral molecules.
Researchers at Harvard John A. Paulson School of Engineering and Applied Sciences have developed an integrated electro-optic modulator that can efficiently change the frequency and bandwidth of single photons on a chip. This device could be used for more advanced quantum computing and quantum networks.
Researchers develop new method to evaluate telescope performance before installation, enabling better optimization and reduced scattering. This approach uses near-field radio holography to map the optics at cryogenic temperatures, improving signal-to-noise ratio and ensuring accurate space observations.
A new study developed a traveling-wave amplifier based on a photonic integrated circuit operating in the continuous regime, providing 7 dB net gain on-chip and 2 dB net gain fiber-to-fiber. This achievement enables unlimited application areas for LiDAR and other optical sensing applications.
Researchers at MIT have developed a new architecture for optical neural networks, which can perform complex linear algebra operations using light signals. The new design eliminates uncorrectable errors that limited the scalability of earlier systems, enabling larger networks with improved accuracy.
A research team developed an optical chip that can train machine learning hardware, improving AI performance and reducing energy consumption. This innovation uses photonic tensor cores and electronic-photonic application-specific integrated circuits to speed up the training step in machine learning systems.
Researchers at Penn Engineering have created a chip that outstrips existing quantum communications hardware, communicating in qudits and doubling the quantum information space. The technology enables significant advances in quantum cryptography, raising the maximum secure key rate for information exchange.
A team of researchers has successfully controlled individual photons on a chip with unprecedented precision, enabling the development of hybrid quantum technologies. By harnessing nanoscale soundwaves, they can switch photons between two outputs at gigahertz frequencies, paving the way for secure quantum communication networks.
Researchers at HKUST have developed a novel integration scheme using lateral aspect ratio trapping (LART) to efficiently couple III-V lasers and photodetectors with silicon on silicon photonics platform. This breakthrough enables the integration of energy-efficient photonics with cost-effective electronics.
Researchers have demonstrated a power-efficient component for demultiplexing operation using silicon photonic MEMS, enabling efficient wavelength demultiplexing for fiber-optic communications. The compact footprint of the add-drop filter allows fast operation compared to established MEMS products.
Researchers have developed a unique anapole probe to measure photonic spin structures, enabling advancements in spin photonics. The probe can characterize topological spin properties associated with magnetic fields, opening doors for applications like data storage and metrology.
Researchers develop hybrid brightfield-darkfield transport of intensity approach, expanding accessible sample spatial frequencies and achieving 5-fold resolution increase. This method enables precise detection and quantitative analysis of subcellular features in large-scale cell studies.
Scientists demonstrate dynamic scalar optical hopfions, proposing a method to encode and transfer topological information. The discovery may spur interest in exploring novel methods for light-matter interaction and optical manipulation.
Researchers developed a novel method to create deep nanochannels in hard and brittle materials like silica, diamond, and sapphire. By employing femtosecond laser direct writing technology, they achieved sub-100-nm feature sizes and ultrahigh aspect ratios.
Researchers at Sandia Labs have successfully built a compact, rugged quantum inertial sensor that can guide vehicles without satellites. The device uses advanced materials and integrated photonic technologies to achieve high accuracy and miniaturization.
Researchers from University of Warsaw create spiking neuron using photons to mimic biological brain's behavior. This achievement paves the way for photonic neural networks that process information faster and more efficiently than conventional systems.
Researchers developed a new technique using femtosecond laser pulses to fabricate precision ultrathin mirrors for space telescopes. The method can help correct errors in mirror fabrication and enable sharper images of astronomical x-rays.
Researchers at MIT have developed a new method that uses optics to accelerate machine-learning computations on low-power devices. By encoding model components onto light waves, data can be transmitted rapidly and computations performed quickly, leading to over a hundredfold improvement in energy efficiency.
Physicists have developed a new photonic system with electrically tuned topological features, constructed of perovskites and liquid crystals. The system can be used to create efficient and unconventional light sources, mimicking the spin-orbit coupling previously observed in semiconductor physics at cryogenic temperatures.
Scientists from Paderborn and Ulm universities create a programmable optical quantum memory, enabling the efficient growth of large entangled states. This breakthrough milestone brings researchers closer to practical applications of useful quantum technologies.
Researchers developed a low-cost, simple imaging system using tumor-targeting fluorescent molecules to determine tumor depth. The portable system provides quantitative information about the depth of tumor cells in the body, helping surgeons remove healthy tissue around tumors for better outcomes.
The researchers used a 3D laser printing approach to create high-quality, complex polymer optical devices directly on the end of an optical fiber. The device turns normal laser light into a twisted Bessel beam with low diffraction and can be used for applications like STED microscopy and particle manipulation.
The researchers used a new technique to capture the first cross-sectional images of carbon dioxide in the exhaust plume of a commercial jet engine. The images show a ring-structure of high carbon dioxide concentration and a raised region in the middle of the plume.
Researchers have developed a simplified and fast optoretinography approach to measure retinal function, potentially accelerating the development of new treatments for eye diseases. The technique can collect data from three healthy subjects in just ten minutes and has been demonstrated to be reproducible.