Articles tagged with Optoelectronics
Researchers have developed a new method for creating multicolor single-mode microlasers capable of emitting over the full visible spectrum. The lasers are achieved through heterogeneously coupled cavities constructed with three spherical microcavities and distinct gain media.
Researchers have developed a novel powder method for efficiently evaluating electro-optic coefficients, enabling the discovery of promising new crystals. The approach uses second harmonic generation, infrared reflectance spectrum, and Raman spectroscopy to predict electro-optic coefficient magnitude.
Black phosphorus has potential for emerging devices, including medical imaging and environment monitoring, thanks to its versatility and manipulation as a 2D material. The material's ability to tune electron energy levels makes it suitable for electro-optic modulation, which is essential for faster computing and data communication.
Researchers propose a novel vdW heterostructure for MIR light-emission applications using BP and TMDC materials. The BP-WSe2 heterostructure shows a type-I band alignment, enhancing MIR photoluminescence by ~200%. In contrast, the BP-MoS2 heterostructure forms a type-II band alignment, enabling efficient MIR electroluminescence.
Researchers propose orbital engineering to overcome efficiency limitations in high-Al-content AlGaN quantum wells. By inclining the quantum well plane, they modify energy variations induced by orbital coupling, enhancing quantum confinement and radiative transition rates.
A team of scientists has developed a new parametric oscillator in the optoelectronic domain with unique phase-controlled operation, enabling stable and tuneable multimode oscillation. This allows for applications in microwave signal generation, oscillator-based computation, and radio-frequency phase-stable transfer.
Researchers from Osaka University and collaborators uncover quasiparticle interactions in CNTs using terahertz radiation. They identify two key mechanisms explaining data, shedding light on ultrafast electrical conduction and advancing optoelectronic devices.
Scientists from Skoltech developed a novel method to fine-tune the optoelectrical properties of single-walled carbon nanotubes by applying an aerosolized dopant solution. The new approach enables uniform, controllable and easily reproducible aerosol doping, breaking new ground for flexible and transparent electronics.
A new surface tension-controlled crystallization method has been developed to prepare large 2D perovskite single crystals, achieving exceptional device performance. The crystals exhibit anisotropy-dependent optoelectronic properties, with high responsivity and external quantum efficiency.
Theoretical and experimental investigations confirm the Marcus hopping model for electronic transport in organic films. The study verifies the 'inverted Marcus regime' where higher voltage generates lower current, improving understanding of organic devices.
Researchers at Lobachevsky University have synthesized a hexagonal modification of silicon with enhanced optical properties, which can be used in optoelectronic integrated circuits. The material was created using ion implantation and exhibits an associated emission band in the infrared region.
Researchers studied electronic structures of van der Waals heterostructures under applied vertical electric field, revealing Coulomb interaction's impact on bandedges. This nonlinear variation is attributed to interlayer charge transfer, essential for nanoelectronic device applications.
Blue phosphorus has been successfully mapped and measured by a team from HZB around Evangelos Golias, revealing a unique honeycomb structure and large semiconducting band gap of seven times larger than black phosphorus. The material's properties are influenced by the substrate, making it an essential parameter for optoelectronic applic...
Researchers at NIST developed a filtering method to reduce interference in electro-optic lasers, allowing for ultrafast pulses that arrive 100 times faster. This technology could enable real-time hyperspectral imaging and other applications.
Researchers have successfully fabricated tiny on-chip lithium niobate modulators with ultra-high data transmission speeds and lower energy consumption. The breakthrough technology has the potential to revolutionize the optoelectronic industry by enabling high-speed, low-power, and cost-effective communication networks.
Researchers have created new 'switches' that respond to light using combined light-sensitive molecules with layers of graphene and other 2D materials. This technology could lead to programmable applications in smart electronics, sensors, and flexible devices.
Researchers created a tiny electro-optic modulator that translates electrical signals into light at speeds 10s of times faster than current technologies. The device uses plasmonics and has the potential to integrate photonics and electronics on a single chip, revolutionizing information technology.
Researchers at Oregon State University have designed the world's smallest electro-optic modulator, which could lead to major reductions in energy consumption for data centers and supercomputers. The device is roughly the size of a bacterium and can be 100 times more energy efficient than previous devices.
Researchers detected graphene's out-of-plane heat transfer in van der Waals heterostructures, with implications for ultra-fast photodetectors and optoelectronic device design. The phenomenon relies on hot electrons and hyperbolic phonons in the hBN layer.
Researchers propose using titanium nitride to replace gold and silver in optoelectronic devices, offering improved anti-corrosion and thermal stability properties. The material has shown significant Q-factor improvement in plasmon resonance, enabling the preservation of energy and wave oscillations.
Researchers developed a cost-effective optical manipulation platform to assemble electronic components using optoelectronic tweezers. The technique allows parallel micromanipulation of particles and can be used to create safer and faster-charging mobile device batteries.
INRS professors François Légaré and Federico Rosei have been elected OSA Fellows for their groundbreaking work in ultrafast molecular imaging and photonic materials development. The distinction reflects their leadership, publication record, and significant impact on optics and photonics research.
An international research team developed inkjet printing techniques for scalable mass fabrication of black phosphorous-based photonic and optoelectronic devices. The novel technique enables the production of functional devices with excellent print quality and uniformity.
The special section aims to facilitate consumer-driven advancements in wearable virtual system applications, including automotive, industrial, and military vision systems. Papers describe various approaches and technologies to address challenges such as latency, acuity, field-of-view, fashion, and donning/doffing.
Researchers at FAU have successfully assembled and tested conductors and networks made of individual molecules. The 'Lego bricks' can fabricate the smallest nanostructures under precision-controlled conditions, opening up possibilities for optoelectronic applications.
Researchers at the University of Exeter have developed a pioneering technique to engineer computer chips more easily and cheaper than conventional methods. The breakthrough could revolutionize the production of optoelectronic materials, enabling advancements in renewable energy, security, and defence technologies.
Researchers at the University of the Witwatersrand have developed a technique to calculate the transport properties of carbon superlattice devices, enabling the creation of high-frequency electronic and optoelectronic devices. This breakthrough could lead to significant advancements in industries such as biology, space technology, and ...
Researchers have developed a theoretical framework to quantify the degree of transparency of 2D materials to an electrostatic field. This allows for microscopic control over charged carriers in bulk semiconductors, leading to next-generation optoelectronics with lower power consumption.
Researchers have designed heterocycle-based luminogens with aggregation-induced emission characteristics, offering improved electron transport and tunable energy gaps. These materials exhibit superior performance in optoelectronic devices, chemo- and bio-sensors, and bioimaging applications.
Researchers from MIPT have found a solution to efficiently cool optoelectronic chips using industry-standard heatsinks, enabling the development of high-performance microprocessors. By compensating for heat loss with additional energy pumping, scientists can create optical gain and overcome temperature-related issues.
PTB researchers have developed a laser-based vector network analyzer (VNA) for precise and cost-effective high-frequency measurements. The new method enables frequency-resolved scattering parameter measurements on planar waveguides up to 500 GHz with a 500 MHz frequency spacing.
Researchers have developed a method for creating high-quality whispering-gallery-mode microcavities using femtosecond laser 3D printing. The technique enables the fabrication of these microcavities with extremely high Q factors, which enhance interaction between light and matter, leading to promising applications in various devices.
Researchers from Berkeley Lab demonstrate bright excitonic lasing at visible light wavelengths using a monolayer of tungsten disulfide in a microdisk resonator. The technology has potential for high-performance optical communication and computing applications, as well as valleytronic applications.
Researchers from UC Santa Barbara develop a simple new electron-beam multilayer deposition technique to create high-quality ITO intracavity contacts, yielding significant improvements in optoelectronic properties. The technique paves the way for others to enter this realm of research and provides a critical part of gallium nitride-base...
The team used the Campanile probe to spectroscopically map nanoscale excited-state/relaxation processes in monolayer crystals of molybdenum disulfide, revealing significant optoelectronic heterogeneity. The discovery of an unexpected edge region with sulfur deficiency holds implications for future optoelectronic applications.
Researchers at University of Southampton demonstrate a breakthrough technique that enables silicon detectors for telecommunications, promising significant advances in photonics. The technique uses laser-crystallised silicon photonic devices to overcome challenges of using silicon in data communications.
Piezotronics harnesses mechanically-induced polarization to modulate charge carriers, leading to novel device applications and unparalleled performance. This technology has given rise to strain-gated piezotronic transistors, logic nanodevices and strain memory devices, enhancing sensing capabilities and enabling 3D structuring.
Theorists have found new methods to determine the likelihood of quantum encryption scheme failure, enabling device-independent cryptography. This allows for the estimation of failure probabilities without relying on assumptions about the reliability of devices.
Research team at UNIST developed high-performance NW-OPTs, showing enhanced charge-carrier mobility and higher external quantum efficiencies compared to thin-film OPTs. This breakthrough enables bottom-up fabrication of optoelectronic nanodevices with high operational stability and easy control of photoswitching voltages.
Researchers from California and Japan have devised a new LED design that avoids efficiency droop, a major problem limiting solid-state lighting growth. The breakthrough could lead to more energy-efficient and affordable LED lighting, with potential applications in household bulbs.
Researchers have developed portable gas sensors that can monitor ozone, greenhouse gases, and air pollutants with high-resolution mapping capabilities. The sensors use various technologies, including laser sensors and deep ultraviolet LEDs, to detect small amounts of atmospheric gases.
Physicists create isolated attosecond pulses using a new method dubbed the "attosecond lighthouse" effect, which can help confirm theories of electron motion and yield insights into chemical reactions. The technique has several advantages over previous methods, including ease of implementation and minimal rotation required.
Researchers successfully sent highly accurate clock signals across hundreds of kilometers using optical fiber links, overcoming challenges to transmit stable signals over long distances. The achievement brings scientists closer to redefining the second and enabling ultra-precise navigation and other applications.
Researchers created an integrated electronic component directly into optical fibers, bypassing the need to integrate fiber-optics onto a chip. This breakthrough enables high-speed optoelectronic function and has potential applications in telecommunications and hybrid technologies.
Joseph Kakande, a PhD student at the University of Southampton, has been selected as one of three Marconi Young Scholars for his groundbreaking research on all-optical signal processing. His work aims to develop novel methods for processing high spectral efficiency phase encoded optical signals using nonlinear fibre optic technologies.
Researchers found that patients with pectus excavatum have reduced chest wall motion near the deformity and compensate by using abdominal muscles to draw in more air. The study suggests these patients may experience shortness of breath and easy fatigability due to the dysfunctional upper chest wall motion.
The Kavli Institute at Cornell is shifting its focus from a think tank to a proving ground for pushing the limits of nanotechnology. Under new leadership, it will fund projects and researchers to create novel instruments and tools for next-generation microscopies and optoelectronic nanocharacterization.
Scientists from Denmark and Australia have established an error-free speed-reading record using a compact ultra-fast component, reaching 640 Gbps. The new technology allows for faster network speeds and opens the door to even higher data rates approaching terabits/second.
Phaedon Avouris and Tony Heinz's pioneering work on carbon nanotubes and graphene aims to develop a future nanoelectronic technology. Their research will benefit industries such as aviation, space, and medicine, with applications in high-speed electronics, communications systems, and sensors.
The Adaptive Scanning Optical Microscope (ASOM) eliminates traditional trade-offs between magnification and field of view, providing 40mm diameter field of view with consistent resolution. This technology enables faster imaging and reduces visual distortions.
Nanotechnology researchers at Georgia Tech created a systematic study of growth conditions for one-dimensional nanostructures from cadmium selenide, producing three types of nanostructures: nanosaws/nanocombs, nanobelts, and nanowires. The 'road map' provides optimal conditions for controlling the production of each structure.
Steve Granick and Zhiqun Lin found that patterns of high fidelity form spontaneously through evaporation of a droplet in a cylindrical mount. The process results in concentric rings with regular spacing, controlled by the material's size and surface properties.
Researchers develop environmentally friendly nano-coatings with unique properties, enabling new devices for consumer electronics and sensing applications. The innovative technology utilizes 3D nanostructures and nano-honeycomb structures to produce sustainable materials and devices.
Researchers at Georgia Institute of Technology have developed optoelectronic devices based on silver nanoclusters that can perform addition and other complex logic operations. The devices use electroluminescence to produce optical output, allowing for read-out without electrical contacts.
Researchers at NRL have created a new type of glass material for use in future opto-electronic devices, which could lead to advancements in optical sensors, miniaturized optical systems, high-speed communication components, and more. The material's properties are highly dependent on its layered structure and composition.